64results about How to "Improve reuse efficiency" patented technology

The invention provides a method for quickly classifying the complementary energy of a decommissioned power battery, which comprises the following steps of: measuring the residual capacity of the decommissioned power battery by adopting a high-rate constant-current discharge method, and generating a voltage-capacity curve; feature parameters are extracted based on the voltage-capacity curve, feature data sets are generated, and then the feature data sets are screened; optimizing the screened characteristic parameters, and inputting the optimized characteristic parameters into an ACO-SVR model for training and verification to obtain a decommissioned power battery complementary energy evaluation model; and according to an output result of the decommissioned power battery complementary energy evaluation model, the complementary energy of the batteries is divided into different grades, and different secondary utilization or recovery processing suggestions are provided for the batteries with different complementary energy grades. According to the method, the problems of low test precision and long time consumption of the retired power battery are effectively solved, and grade classification is carried out on the evaluated complementary energy of the retired power battery.

The invention discloses an anti-scratch display panel injection molding device, and relates to the technical field of injection molding, the anti-scratch display panel injection molding device comprises an injection molding assembly, and the top of the injection molding assembly is provided with a scraping assembly and a protection assembly. During use, when the power transmission mechanism drives the plunger body to move reversely and reset, the plunger body can penetrate through the conical scraping plate, and at the moment, the conical scraping plate pushes down small-particle plastic attached to the outer surface of the plunger body, so that the situation that the small-particle plastic continues to move along with the plunger body and enters the space between the plunger body and an external material barrel is avoided, and the service life of the plunger body is prolonged. And therefore, the effect of scraping small-particle plastic is achieved, and the service life is prolonged. The scraped small-particle plastic falls into the charging barrel body, and under interception of the microporous filter screen, the small-particle plastic is prevented from falling into the protective barrel and the liquid discharge pipe to cause blockage.

The invention provides a method for preparing pyroxasulfone through continuous oxidation by using a fixed bed catalyst, which comprises the following steps: respectively pumping a compound of formula I and hydrogen peroxide into a fixed bed catalyst reactor for reaction, and purifying the reaction liquid after the reaction is completed to obtain pyroxasulfone. The fixed bed catalyst reactor internally comprises a tungsten-containing catalyst loaded by a nano titanium silicalite molecular sieve, the mass content of the nano titanium silicalite molecular sieve is 25%-50%, and the mass content of the tungsten-containing catalyst is 50%-75%. The fixed bed catalyst reactor is used, the reuse efficiency is high, and the catalyst cost is greatly reduced. The amount of hydrogen peroxide used for oxidation is only the theoretically required amount, no hydrogen peroxide is left after the reaction, and the risk of the oxidation reaction is greatly reduced. The method is simple in purification treatment, high in reaction yield and low in three-waste yield.

The invention belongs to the technical field of communication, and particularly relates to a multi-domain general computing resource collaborative deployment optimization method and device, equipment and a medium. The method comprises the following steps: determining the communication time delay of a service from an edge substation to a cloud, constructing a first target function with the maximum time delay redundancy as a target, and solving to obtain the shortest service communication time delay. And calculating a service quality function and a resource adequacy index based on the shortest service communication time delay. And when the resource adequacy does not meet the preset condition, constructing a second target function with the minimum general calculation resource investment cost as a target, and solving to obtain a multi-domain general calculation resource collaborative deployment optimal scheme. According to the scheme, a traditional service hierarchical transmission method is abandoned, the cloud-side service shortest communication time delay is calculated through the maximum redundancy time delay, the resource adequacy is evaluated, and a low-cost resource collaborative deployment scheme is given.

The invention discloses a preparation method of a magnetic flocculant and an application method of the magnetic flocculant in purification of combined overflow pollution, and is characterized in that cellulose is used as a matrix to graft an acrylamide monomer and a cationic monomer to form a flocculant skeleton structure, and a magnetic core is grafted in the flocculant skeleton structure; the synergistic effect of the cationic monomer, the acrylamide and the magnetic seed enhances the electrical neutralization flocculation effect, increases the branch chain length of the flocculant, improves the rapid precipitation capability of flocs, and ensures the reuse efficiency of the flocculant; when the magnetic flocculant is applied to on-site treatment of combined system overflow pollution, and the adding amount of the single magnetic flocculant is 100-600mg / L, the SS removal rate of combined system overflow sewage is gt; compared with a conventional water treatment process, the sedimentation efficiency is as high as more than two times; 80% of SS can be removed after 0.5 min of sedimentation, and the recovery efficiency of the magnetic seeds and the removal rate of the SS are both gt when the magnetic seeds are reused for 10 times; 80%. When being applied to primary enhanced treatment of a combined system overflow pollution water plant, the composite flocculant is compounded with an inorganic flocculant, and when the dosage of the inorganic flocculant is 120mg / L, the removal rate of SS (suspended solids) can reach 96.1%, the highest removal rate of COD (chemical oxygen demand) is 44.7%, and the highest removal rate of TP (total phosphorus) is 93.3%; the magnetic flocculant provided by the invention realizes efficient and rapid removal of combined system overflow pollution in different treatment modes.

The invention discloses a cationic dye dyeable regenerated polyester fiber and a preparation method thereof, and relates to the technical field of polyester fibers, the cationic dye dyeable regenerated polyester fiber comprises the following components: waste polyester, sodium bis (2-hydroxyethyl) isophthalate-5-sulfonate and long-chain dihydric alcohol, the method comprises the following steps: mixing waste polyester, sodium bis (hydroxyethyl) isophthalate-5-sulfonate and long-chain dihydric alcohol according to a certain mass ratio, extruding the mixture in a twin-screw extruder, carrying out semi-depolymerization on the waste polyester by using the sodium bis (hydroxyethyl) isophthalate-5-sulfonate and the long-chain dihydric alcohol to obtain a semi-depolymerization product which is low-molecular-weight polyester with a hydroxyl-terminated structure, feeding the low-molecular-weight polyester into a polycondensation reactor, and carrying out condensation polymerization on the low-molecular-weight polyester with the hydroxyl-terminated structure to obtain the low-molecular-weight polyester with the hydroxyl-terminated structure. The prepared modified polyester can be directly spun or spun after being diced, and the prepared polyester fiber has a cationic dye normal-pressure dyeable effect, can remarkably reduce dyeing energy consumption and material consumption, has good hygroscopicity, improves wearing comfort and can be widely applied to the fields of clothes, home textiles and the like.

The invention discloses a cyclic utilization management method, system and device for digital logistics packaging materials, and relates to the technical field of logistics packaging recovery, and the method comprises the steps: distributing a unique digital identifier for each logistics packaging material, building a cyclic utilization database of the packaging materials, and introducing a block chain technology to carry out the storage and updating of data. The central management system carries out deep analysis on collected and recorded correct data, a machine learning algorithm and a big data analysis technology are applied, a personalized cyclic utilization scheme is formulated according to different types of packaging materials and specific conditions of the packaging materials, and a user scans a digital identifier by logging in an account to obtain detailed information of the logistics packaging materials. According to the method and the system, the unique digital identifier is distributed for each logistics packaging material, so that accurate tracking and efficient management of the packaging materials can be realized, and the authenticity and non-tampering property of the data are ensured through the unique digital identifiers and the block chain technology.

The invention relates to the technical field of data processing, and discloses a digital scene driven intelligent public service platform construction method and device and a medium. The method comprises the following steps: performing four-dimensional mapping on a business scene to obtain a scene element list; performing value flow analysis and capability decomposition on the scene element list to obtain a scene value flow graph and a scene capability map; converting the scene value flow graph and the scene capability map into a four-layer architecture model through hierarchical processing; carrying out asset classification on the four-layer architecture model to obtain information type and design type asset models; performing componentization processing on the asset model to form three types of component libraries; and integrating the component library into an intelligent public service platform through micro-service integration. The problems of multi-dimensional mapping of digital scene elements and associated tracing of scene assets are solved, so that the efficiency of constructing an intelligent public service platform driven by a digital scene is improved.

The invention discloses an equipment software test case recommendation method and device based on semantic similarity. The method comprises the steps of special noun dictionary construction and keyword extraction, demand and case semantic similarity calculation and software test case reuse. According to the method, the historical equipment software quality data serves as knowledge, the intelligent and automatic reuse capability of the historical equipment software test case is formed by means of artificial intelligence algorithms such as a topic model and a word vector model, the reuse efficiency of the equipment software test case is enhanced, and the sufficiency and effectiveness of new project software test case design are improved.

The invention relates to the technical field of drilling equipment, in particular to a drilling mud reverse circulation flushing device which comprises a drilling cutting separating device, the drilling cutting separating device comprises an outer shell, and the interior of the outer shell is divided into a separating area and a discharging area through a partition plate; a liquid outlet is formed in the position, located in the separation area, of the outer side wall of the outer shell, a drilling cutting separation assembly is arranged in the separation area, and the drilling cutting separation assembly comprises an inner intercepting net. According to the device, the feeding pipe, the inner intercepting net and the outer intercepting net are arranged in a matched mode, the first motor is started, the inner intercepting net and the outer intercepting net rotate in the opposite directions, stronger shearing force is formed in the outer shell, the blocking risk of the filter net is reduced, and the separation efficiency of drilling cuttings is improved. The separating hopper is arranged at the bottom of the drilling cutting separating assembly, the blocking mechanism is arranged in the separating hopper, and the conveying mechanism is arranged below the separating hopper, so that the drilling cutting can be automatically conveyed to the outside through the conveying mechanism, and the labor intensity of workers is relieved.

The present invention provides a transfer tool based on heating and demoulding of PCM prepreg layers, and relates to the field of heating and demoulding of PCM prepreg layers. The transfer tool based on heating and demoulding of PCM prepreg layers comprises a plate body, the upper surface of which is provided with a product groove, the left side of the inner wall of the product groove is provided with a first cavity, the right side of the inner wall of the product groove is provided with a second cavity, and the right side of the inner wall of the first cavity is rotatably connected with a first worm. The heat resistance and non-stickiness of the Teflon coating are used to change the viscosity of the surface of the prepreg, so that the prepreg and the transfer tool can be easily separated. If a small amount of adhesive is adhered to the surface of the transfer tool, it can be removed by simply wiping, reducing the peeling time. The device ejects the products uniformly, avoiding the problem that some products are easily damaged at the corners of the products when they are taken out, affecting the appearance quality of the equipment, and even affecting the normal use function of the products.

This invention discloses a rice-snail-fish symbiotic system constructed using tilapia aquaculture wastewater and a breeding method based on the symbiotic system. It belongs to the field of wastewater symbiotic aquaculture technology. The rice-snail-fish symbiotic system includes experimental terraces; a rice planting area; a snail aquaculture area; a fish aquaculture area; a wastewater treatment unit; and a recirculating aquaculture system. The breeding method includes constructing a "rice-snail-fish" symbiotic ecosystem; ex-situ treatment of tilapia aquaculture wastewater; and using deep learning to construct a digital model to accurately screen genes beneficial to wastewater treatment, thereby achieving molecular-level regulation of wastewater treatment. This invention uses aquaculture wastewater as a living environment for rice and symbiotic organisms, reducing the loss of freshwater resources and other raw materials, improving the efficiency of material reuse, and breeding "rice-snail-fish" biological species to obtain species more suitable for this ecosystem.

The utility model discloses a booster pump pressure stabilizing protection device which comprises storage tanks, a booster pump and a Y-shaped filter, the storage tanks are at least divided into a first storage tank and a second storage tank, the lower portions of the two storage tanks are communicated through a middle communicating ball valve, the bottoms of the two storage tanks are respectively provided with a blow-down valve, and the Y-shaped filter is connected with the blow-down valve. Wherein a water inlet and outlet pipe with an electromagnetic valve is arranged on the pipe wall of the first storage tank, two dual-redundancy upper water level floating ball valves which are arranged in parallel are arranged in the upper portion of the first storage tank, and two dual-redundancy lower water level floating ball valves which are arranged in parallel are arranged in the lower portion of the first storage tank. The lower part of the second storage tank is communicated with the booster pump through a ball valve and a Y-shaped filter; the lower water level floating ball valve is connected with the booster pump in an interlocking mode to control closing of the booster pump, and the upper water level floating ball valve is in linkage with the electromagnetic valve.

The invention discloses a method and a device for efficiently collecting and storing lateral runoff of a karst slope surface karst zone. The method and the device are applied to efficiently collecting and storing rainfall flood runoff in a karst mountain area. A flexible concealed pipe water collection system is adopted and comprises a flexible concealed pipe water collection pipe with specifically designed water seepage holes, a ditch, a drainage pipeline, a water collection pipe outlet, biochar, a coarse and fine gravel filter material, a reservoir and the like. Each flexible concealed pipe is arranged in the ditch, water in the ditch is intensively discharged to an outlet of the water collecting pipe and is connected with the reservoir through the drainage pipeline, and the position of the ditch is higher than that of the reservoir connected with the ditch. According to the device, water and surface runoff in a surface karst zone can be effectively collected and transmitted, the hydrological driving force of water and soil loss is reduced, and meanwhile the utilization efficiency of rainfall flood resources of the high-permeability karst hillside is improved. The system is simple in structure and free of maintenance, can be widely applied to the slope toe part of the karst mountainous area, and assists in relieving the drought and water shortage problems of dispersed residential areas and economic fruit forest land parcels in the karst mountainous area.

The purpose of the present invention is to provide: a method for economically and environmentally-friendly recovery of an electrode raw material for positive and negative electrodes from a spent lithium ion secondary battery, said electrode raw material being formed by pyrolyzing a spent lithium ion secondary battery; and an electrode raw material for positive and negative electrodes obtained thereby. In order to achieve the purpose, the recycling method of the waste lithium ion secondary battery according to the present invention may include (a) filling the waste lithium ion secondary battery into a pyrolyzing furnace, (b) increasing an internal temperature of the pyrolyzing furnace to induce self-heating of the waste lithium ion secondary battery, (c) maintaining a self-heating reaction of the waste lithium ion secondary battery, and (e) reducing the internal temperature of the pyrolyzing furnace to induce self-heating of the waste lithium ion secondary battery. (d) discharging a first powder formed after the completion of the self-heating reaction of the waste lithium ion secondary battery, and (e) injecting the first powder into water, dissolving a lithium component contained in the first powder, and separating and recovering an aqueous lithium solution, a precipitate precipitated in the aqueous lithium solution, and a float on the surface of the aqueous lithium solution, respectively.

The utility model discloses a steam recycling device which comprises a cylindrical preheating water tank, a central pipe coaxial with the preheating water tank is arranged in the preheating water tank, and a steam pipeline extending in the axial direction of the central pipe is spirally wound on the central pipe. The upper end of the steam pipeline is provided with a steam inlet pipe extending out of the top wall of the preheating water tank, and the lower end is provided with a steam outlet pipe extending out of the bottom wall of the preheating water tank; a spiral rib plate extending in the axial direction of the preheating water tank is arranged in the preheating water tank and arranged outside the central pipe in a coiled mode, the outer wall of the spiral rib plate is connected to the inner wall of the preheating water tank, the spiral rib plate divides the inner space of the preheating water tank into a spiral circulating water channel, a water inlet is formed in one end of the circulating water channel, and a water outlet is formed in the other end of the circulating water channel. The water outlet and the water inlet are formed in the side wall of the preheating water tank. The steam recycling device has the advantages of being simple and novel in structure, high in heat energy recycling efficiency, complete in overall function and high in practicability.

This utility model relates to the field of compressor technology, and in particular to an oil return structure for an aluminum swashplate type large displacement compressor, comprising: a compression working assembly including a rotating shaft with an oil outlet channel along its length, and multiple oil outlet holes on its outer wall communicating with the oil outlet channel; a cylinder body with a working chamber in the middle, fitted onto the compression working assembly, with the rotating shaft passing through the cylinder body; an oil storage pool on one side of the cylinder body; and end caps, one on each of the two end faces of the cylinder body; wherein the cylinder body is divided into a first oil return section and a second oil return section; the first oil return section has a first oil return hole channel communicating from the joint surface between the first oil return section and the end cap to the working chamber; the second oil return section has a second oil return hole channel communicating from the joint surface between the second oil return section and the end cap to the oil storage pool. This utility model effectively improves the oil circulation effect within the compressor, enhances the lubrication effect, and improves the oil return function.

The utility model discloses a hydrogen injection fuel cell standby power supply system. According to the technical scheme, the hydrogen injection fuel cell standby power supply system is characterized by comprising a gas inlet electromagnetic valve and a fuel cell stack which are connected with hydrogen through a pipe, the gas inlet electromagnetic valve outputs gas to an injection device, and a pressure release valve and a pressure sensor are arranged between the injection device and the fuel cell stack; and a gas-water separator is arranged at the output end of the fuel cell stack and is matched with the injection device for circulation. The injection device is adopted to replace a traditional mode that a proportional valve and a hydrogen pump are combined for circulation, so that efficient operation of the system is maintained, and stability and reliability of the system are enhanced.

The present invention is applicable to the technical field of CNC machining, and provides a liquid collecting structure for a CNC machining center and a method of using the liquid collecting structure, including a liquid collecting component, a dredging component plugged in and matched with the inside of the liquid collecting component, and a waste chip collection box snap-fitted in and matched with the inside of the liquid collecting component; the liquid collecting component includes a liquid collecting part, a magnetic flux part slidably matched with the liquid collecting part, and the dredging component includes a plug-in part, and a dredging part slidably matched with the plug-in part. The device solves the problem that during the process of dredging the waste chips by the dredging structure, the waste chips dredged out are easy to fall into the filter holes again, thereby causing a certain impact on the subsequent separation process of cutting fluid and waste chips, and reducing the recycling process of the cutting fluid, and can achieve and avoid the waste chips dredged out from falling into the several filter holes opened on the top of the filter inclined plate again, preventing it from affecting the subsequent separation and filtration process of cutting fluid and waste chips, and increasing the reuse efficiency of the cutting fluid.

The present invention discloses a lightweight building material based on waste photovoltaic glass and a preparation method and application thereof, and relates to the field of lightweight building materials and solid waste utilization. The lightweight building material is mainly made of the following raw materials in parts by weight: 90-98 parts of waste photovoltaic glass and 2-10 parts of foaming agent; wherein the waste photovoltaic glass is waste photovoltaic glass produced by a monocrystalline silicon solar cell module and / or a polycrystalline silicon solar cell module. The implementation of the present invention can greatly improve the reuse efficiency of waste photovoltaic glass. The lightweight building material obtained by the present invention has the advantages of light weight, high strength, heat insulation and sound insulation, and can be used as a filler for ALC boards.

The application provides a seal multiplexing method and device, electronic equipment and storage medium. It is related to artificial intelligence technology and can be used in the field of financial technology or other related fields. The method comprises the following steps: obtaining a seal card of a target object, wherein the target object represents a group customer other than a personal customer; determining each seal in the seal card and the first seal type of each seal, and the shapes and characteristics of seals of different seal types are different; according to the second seal type of the seal multiplexing rule, the first seal type of each seal is matched to obtain a multiplexed seal that satisfies the seal multiplexing rule. To solve the problem that the seal information of the group customer is transmitted offline in the prior art, the communication efficiency is low, and the seal may be lost, the technical effect of avoiding offline transmission of the seal is realized, and the overall seal multiplexing efficiency is improved.

The present invention belongs to the field of biochemical engineering, and specifically relates to a method for producing an indoxacarb intermediate by using nano-ferrous carbonate immobilized hydroxylase. It includes preparing an indoxacarb intermediate (S)-5-chloro-2-methoxycarbonyl-2-hydroxy-1-indanone by preparing nano-ferrous carbonate immobilized hydroxylase and polydopamine-modified nano-ferrous carbonate immobilized hydroxylase. The nano-ferrous carbonate immobilized hydroxylase of the present invention has the advantages of small particle size, good dispersibility, high reuse efficiency, etc., and its surface is covered with a polydopamine film, which further improves the stability and reuse rate of the biocatalyst, and the nano-ferrous carbonate immobilized hydroxylase does not rely on expensive cofactors. The process route of the present invention is simple, no expensive catalyst is required, the production cost is low, the by-products are less, and the production efficiency is high.

This application relates to a method, system, and storage medium for extracting structured data from literature. The method includes: acquiring information about the literature to be processed and information about the domain of interest; generating intent recognition routing results by calling a corresponding domain intent recognition model based on the information about the domain of interest; constructing prompt words based on the information about the domain of interest and the intent recognition routing results, and extracting first target literature information from the information about the literature to be processed; constructing a corresponding domain similarity function based on the intent recognition routing results, and generating second target literature information by removing similar literature from the first target literature information; and outputting experimental information, experimental knowledge graphs, and source relationships in a structured form based on the second target literature information. This application determines the intent recognition routing results through domain intent recognition, adaptively selects the extraction strategy and domain similarity function, and combines multimodal parsing and block processing to achieve high-completeness extraction, cross-domain adaptive fusion, and traceable structured output of experimental information from cross-domain literature.

The invention discloses a 3D (three-dimensional) electronic laparoscope sheath and a forming method thereof, and the 3D electronic laparoscope sheath comprises a lens which is formed by combining an endoscope and a stacked film layer; and the sheath head is used for separating the lens from the tail end of the mirror. Forming a sheath tube protection structure based on a mirror structure; a coating film is overlaid at the tail end of the mirror to protect the imaging effect; based on the film coating structure, a sheath head is added into the sheath tube to form a mirror lens protection structure; and analyzing the stress state among the sheath tube, the sheath head and the mirror to confirm the combination condition. Through a reasonable process mode, a stable mirror sheath sleeve structure is formed, the function of protecting the mirror is achieved, the visual field of a doctor is clear, and meanwhile the reuse efficiency and the overall sanitary effect of the electronic peritoneal mirror are improved.

The invention discloses a material receiving tank with a ceramic lining plate screen, and relates to the technical field of material receiving tanks, the material receiving tank comprises a material receiving mechanism, the material receiving mechanism comprises a tank body, the inner wall of the tank body is fixedly connected with aluminum oxide ceramic lining plates arranged at equal intervals, the upper surface of the tank body is provided with a feeding port, and a discharging mechanism is arranged above the tank body; according to the material receiving tank with the ceramic lining plate screen, the overall structural strength of the screen and the tank body lining can be improved, the screen and the tank body lining are not prone to being damaged by impact force of mineral aggregate, meanwhile, after large-size mineral aggregate and waste steel are separated out, workers do not need to use other devices for cleaning, and the working efficiency is improved. The large-size mineral aggregate and the waste steel which cannot pass through the partition screen can be automatically pushed away from the partition screen, so that the large-size mineral aggregate and the waste steel are effectively prevented from blocking the partition screen, the partition screen of the material receiving tank does not need to be shut down to be cleaned in the material receiving process, and the feeding efficiency of the material receiving tank is guaranteed.

The invention belongs to the technical field of front-end cross-frame component multiplexing, and particularly relates to a method for running a React component in Vue based on an adapter mode, which comprises the following steps of: obtaining a Vue wrapper component; component registration is completed through a Vue wrapper component, a React component is packaged into a Vue global or local callable component, and a Vue compatible React component is obtained; a rendering and bridging module is constructed based on a Vue wrapper component, Props bidirectional synchronization, event system mapping, life cycle hook alignment and cross-frame conversion from a slot to a child node are achieved, a Vue compatible React component is called in a Vue environment, and component initialization rendering, interactive response during operation and state updating are completed through the rendering and bridging module; and when the Vue parent component is destroyed, triggering an unloading process of the React component. Therefore, the problems of poor flexibility, low performance, complex process and the like in the prior art are solved.

The application specifically relates to a method for preparing glutathione by immobilized enzyme and application. The method for preparing glutathione provided by the application comprises synthesizing glutathione by using saccharomyces cerevisiae haploid ascospores as a fixed enzyme catalyst to catalyze substrate reaction, using an ATP in-situ regeneration reaction system of phosphoenolpyruvate as an energy supply system, the saccharomyces cerevisiae haploid ascospores are knocked out or inactivated in combination of one or more than two of cell wall beta-glucan synthesis genes, and GSH1 genes, GSH2 genes and PYK1 genes are co-expressed. The saccharomyces cerevisiae haploid ascospores for simultaneously producing GSH1, GSH2 and pyruvate kinase are used as a fixed enzyme catalyst to catalyze synthesis of glutathione, three enzymes no longer need to be added externally, raw material cost is greatly reduced, the obtained product is easy to purify, and the prepared glutathione is high in purity.

The invention provides a sewage treatment process and a water resource recycling process in the polycrystalline silicon industry, aiming at effectively treating high-salinity wastewater. The process comprises the following steps: removing suspended solids and large-particle impurities in the wastewater through pretreatment equipment; preheating through a multi-stage preheater; concentrating the high-salinity wastewater through an MVR (mechanical vapor recompression) evaporation system; the wastewater reversely flows into a multi-effect evaporator; the high-salinity wastewater is concentrated and then enters a crystallization slicing machine, and calcium chloride crystals are obtained. A multi-stage preheater is used in the preheating stage, and preheating heat sources comprise dead steam condensate water and live steam condensate water. The dead steam condensate water is obtained by condensing secondary steam generated by the first-effect evaporator and dead steam generated by the third-effect evaporator; and the live steam condensate water comes from condensate water generated by the first-effect evaporator and the second-effect evaporator. According to the process, heat energy of dead steam and condensate water is fully utilized, energy consumption is remarkably reduced, the cyclic utilization rate of water resources is increased, and high economic and environment-friendly benefits are achieved.

The utility model belongs to the field of security equipment provides a crowd guidance isolation stand column guardrail, including stand column and the base of setting in stand column bottom end, be provided with retractable belt subassembly and multiple lock catch who uses with it cooperation on the stand column, the outside of stand column is equipped with the protection ring for protecting retractable belt subassembly and lock catch, the upper portion of protection ring is provided with two symmetric distribution's plug -in block, the inside upper end of stand column is set up with the cavity, the utility model discloses the protection ring and the limiting component through the setting, when carrying stand column, through the cooperation of limiting plate and plug -in block can lock the protection ring in the outside of retractable belt subassembly and lock catch, make when carrying, stacking or transporting stand column, effectively avoid retractable belt subassembly and lock and the outside object and collide, rub directly, can effectively prevent retractable belt subassembly and lock catch deformation, damage, guarantee the intactness of retractable belt subassembly and lock catch, improved the repeated use efficiency of guardrail.

The present application discloses a granular continuous semi-coke rotary kiln and a battery negative electrode material preparation system. The granular continuous semi-coke rotary kiln includes an inner spiral furnace drum, which has an inner furnace chamber, and the feed end and the discharge end are respectively connected to the feed buffer bin and the discharge assembly; an outer furnace drum, which is rotatably sleeved on the inner spiral furnace drum and spaced to form an outer furnace chamber, and a burner is arranged in the outer furnace chamber; the inner wall of the inner spiral furnace drum protrudes radially toward the inner furnace chamber to form a spiral blade, and the spiral blade extends to the feed end and the discharge end. The spiral blade and the inner wall of the inner spiral furnace drum cooperate to form a spiral groove for guiding the raw material to move from the feed end to the discharge end along a spiral trajectory; an airflow channel is provided on the spiral blade, and the inner end of the airflow channel penetrates to the outer surface of the spiral blade, and the outer end penetrates to the outer wall of the inner spiral furnace drum; in the radial direction of the inner spiral furnace drum, the raw material thickness is not greater than the distance from the inner end of the airflow channel to the inner wall of the inner spiral furnace drum. The pyrolysis gas utilization efficiency of the present application is high, and the cost of preparing negative electrode materials is low.