43 results about "Industrial utilization" patented technology

The invention discloses a genetically engineered bacterium and an application of the genetically engineered bacterium in production of cis-3-hydroxy-L-proline. According to the genetically engineered bacterium, a proline dehydrogenase gene putA and a proline transporter gene putP in a starting bacterium are silenced, and meanwhile, a gamma-glutamyl kinase mutant gene proBD107N, a gamma-glutamyl phosphate reductase gene proA and a cis-3-hydroxy-L-proline hydroxylase gene P3H are subjected to overexpression. And by comparing a plurality of common escherichia coli, the cis-3-hydroxy-L-proline hydroxylase gene P3H and different gamma-glutamyl kinase mutant genes, the highest yield combination is preferably selected. The strain takes glucose as a raw material, so that the production cost is greatly saved, and the strain has a relatively good industrial utilization value.

The invention relates to a coal gangue-based glass fiber and a preparation method thereof, belongs to the technical field of comprehensive utilization of solid wastes, and solves the technical problems of high additional value and industrial utilization of coal gangue, and adopts the technical scheme that the coal gangue-based glass fiber comprises the following components in parts by weight: 10 parts of coal gangue; 1-3 parts of quartz sand; 1-2 parts of dolomite; 0.1 to 0.5 part of an additive; the preparation method of the coal gangue-based glass fiber comprises the processes of raw material crushing, coal gangue-based powder pretreatment, mixing and molding, two-step heating and melting, wire drawing and molding, cooling and fiber forming, and sizing and drying. The preparation method has the advantages of wide raw material source, low cost, simple preparation process, easy realization of industrial production, excellent performance of the obtained glass fiber and the like, and the successful implementation of the preparation method not only can realize effective utilization of the coal gangue, but also can provide a new raw material source and a new process route for the glass fiber industry; the method has important economic and social significance.

The invention discloses a method for leaching valuable elements in silicate rare earth ore, and belongs to the technical field of rare earth metallurgy. According to the method, the valuable elements in the rare earth concentrate are efficiently leached by adopting the processes of low-temperature sulfating intensified roasting, clinker hydrometallurgy, leached ore pulp flocculation and filter cake washing. The strengthened low-temperature sulfating roasting process avoids the problems of high energy consumption, serious equipment corrosion, low rare earth leaching rate and complex waste gas treatment (SO2 escape) of a traditional process, meanwhile, silicate rare earth ore decomposition is achieved, the effect of a back-end leaching process is remarkably improved, compared with an acid pickling process, the hydrometallurgy process reduces the acid consumption and the wastewater treatment difficulty, and the production cost is reduced. The leaching ore pulp flocculating settling process is beneficial for improving the industrial production efficiency, the filter cake washing process is beneficial for further improving the leaching rate of valuable elements, the silicate rare earth ore concentrate resources are utilized to the maximum extent on the premise of being environmentally friendly, and a technical path is provided for industrial utilization of silicate type rare earth ore.

The invention relates to an extractive distillation device and a waste liquid recovery method. The extractive distillation device comprises an evaporator, a primary tower, an impurity removal tower, an extractive distillation tower and a product recovery tower which are sequentially communicated through pipelines; the evaporator is provided with a raw material inlet, a first liquid phase inlet, a first liquid phase outlet, a first gas phase outlet, a first steam inlet and a first steam condensate outlet, and the primary distillation tower is provided with a primary distillation gas phase inlet and a primary distillation liquid phase outlet; the first gas phase outlet is communicated with the primary distillation gas phase inlet through a pipeline, the first liquid phase inlet is communicated with the primary distillation liquid phase outlet through a pipeline, and the first liquid phase outlet is used for flowing out impurities. According to the device and the recovery method, MDG and NMF in the waste liquid are further separated by adopting the extraction agent, MDG and NMF products can be respectively recovered, and thus the industrial utilization value of the MDG and NMF mixture is expanded.

The application relates to a preparation method of 2-amino-6-hydroxypyridine compounds and intermediates thereof, and belongs to the field of organic synthesis. The preparation method of the 2-amino-6-hydroxypyridine compounds comprises the following steps: 1) in a first organic solvent, compound II is reacted with a cyclic acid anhydride reagent A to prepare compound III; 2) in a second organic solvent, in the presence of an oxidizing reagent, compound III is subjected to an oxidation reaction to prepare compound IV; 3) in a third organic solvent, in the presence of an acid anhydride dehydrating reagent, compound IV is subjected to a reaction to prepare compound V; 4) in a fourth solvent, in the presence of a reducing agent, compound V is subjected to a reduction reaction to prepare compound I; and compound I is a 2-amino-6-hydroxypyridine compound. The preparation method of the 2-amino-6-hydroxypyridine compounds provided by the application can obtain a higher yield through mild reaction conditions, and is simple and convenient to operate, and is beneficial to industrial utilization.

The invention discloses an iron-cobalt-nickel layered double hydroxide / graphite-alkyne nano composite material and a preparation method and application thereof, and the preparation method comprises the following steps: mixing iron salt, cobalt salt and nickel salt to prepare a precursor solution, adding the precursor solution and an alkaline solution into a graphite-alkyne dispersion liquid, stirring, and carrying out a hydrothermal reaction to obtain the nano composite material. The nano composite material prepared by the invention has the advantages of large specific surface area, good dispersity, multiple reaction active sites, high catalytic activity, good stability and the like, is a novel composite catalyst with excellent catalytic performance and stable structure, can efficiently activate persulfate when being used for activating the persulfate, and has the advantages of simple preparation process, low cost and the like. The constructed degradation system can efficiently degrade various antibiotics, and is high in use value and good in application prospect. Meanwhile, the preparation method has the advantages of being simple in process, convenient to operate, mild in reaction condition, low in cost, environmentally friendly and the like, can be used for large-scale preparation and is convenient for industrial utilization.

This invention discloses an artificial breeding method for *Schizothorax lancensis*, belonging to the field of aquatic animal breeding technology. The artificial breeding method for *Schizothorax lancensis* provided by this invention includes: intensive three-step cultivation of broodstock, injection of spawning induced agents after cultivation, artificial fertilization, hatching of fertilized eggs, and fry cultivation. Using the artificial breeding method of this invention, the success rate of spawning induction in female *Schizothorax lancensis* is 83.3%, the average fertilization rate is 87.5%, the average hatching rate is 93.0%, and the average fry emergence rate is 91.5%. This achieves large-scale artificial breeding of *Schizothorax lancensis*, laying the foundation for preventing the extinction of *Schizothorax lancensis*, and for carrying out the propagation and release of *Schizothorax lancensis* for industrial utilization.

The present invention discloses a reaction chamber system for atomic layer deposition of high conformal three-dimensional patterns, which includes a reaction chamber cavity and a reaction chamber cover. An equalizing chamber for delivering more than two precursor gases without mutual communication before the ejection of each precursor gas is provided in the reaction chamber cover. At least two groups of spray holes separately communicating with different equalizing chambers are provided on the bottom surface of the reaction chamber cover. Different spray holes communicating with different equalizing chambers are arranged alternately on the bottom surface of the reaction chamber cover and are arranged in a circular pattern. A rotatable workpiece table is provided in the reaction chamber cavity and is arranged parallel to the bottom surface of the reaction chamber cover during use. The reaction chamber system for atomic layer deposition of high conformal three-dimensional patterns of the present invention has the advantages of high utilization rate of precursor gases, convenient operation, low cost, good spray uniformity, easy control of the deposition process, high deposition efficiency, good film deposition uniformity, etc., can prepare high conformal three-dimensional patterns, has strong suitability, is convenient for industrial utilization, has high use value, and good application prospects.

The application discloses an amorphous metal oxide-carbon composite material and application thereof in electrocatalytic oxygen reduction synthesis of H2O2, wherein the amorphous metal oxide-carbon composite material comprises porous carbon PC and amorphous metal oxide MO loaded on the porous carbon x The amorphous metal oxide-carbon composite material has excellent catalytic activity, double-electron ORR selectivity and long-time durability. Moreover, the preparation method of the amorphous metal oxide-carbon composite material has a simple technological process, the amorphous characteristic of the obtained metal oxide is extremely innovative, raw material cost is low, and the amorphous metal oxide-carbon composite material is beneficial to regulation and control, and is favorable to popularization of large-scale industrial utilization of electrocatalytic oxygen reduction preparation of H2O2.

The present invention discloses a molybdenum phosphide composite catalyst and a preparation method thereof. The catalyst comprises nitrogen and phosphorus co-doped carbon nanosheets, on which molybdenum phosphide nanoparticles are loaded. The preparation method comprises the following steps: preparing a molybdenum-based metal organic framework / melamine dispersion, then adding a phytic acid solution for solvent thermal reaction and calcination. The molybdenum phosphide composite catalyst of the present invention has the advantages of strong catalytic activity and good stability, can be widely used for removing sulfur-containing organic compounds in petroleum products, can achieve efficient removal of sulfur-containing organic compounds in petroleum products under mild conditions, has high use value and good application prospects. The preparation method of the molybdenum phosphide composite catalyst of the present invention has the advantages of simple process, convenient operation, cheap and easily available raw materials, low cost, etc., can realize large-scale batch preparation, and is conducive to industrial utilization.

The invention discloses a cobalt nanoparticle / graphite-alkyne nano-composite catalytic material and a preparation method and application thereof.The preparation method comprises the following steps that graphite-alkyne is obtained and mixed with cobalt salt, nitrogen, nitrogen-dimethylformamide and absolute ethyl alcohol to prepare a mixed solution, the mixed solution is subjected to solvothermal reaction and calcination, and the cobalt nanoparticle / graphite-alkyne nano-composite catalytic material is obtained. The nanometer composite catalytic material is obtained. The prepared nano composite catalytic material has the advantages of being large in specific surface area, large in number of active sites, high in cobalt nanoparticle loading capacity, good in cobalt nanoparticle dispersity, high in catalytic activity, good in stability and the like, is a novel cobalt catalyst with excellent catalytic performance and stable structure, can efficiently activate persulfate when being used for activating the persulfate, and has good application prospects. Organic pollutants can be efficiently degraded, the use value is high, and the application prospect is good. The preparation method also has the advantages of simple process, convenience in operation, mild reaction conditions, low cost, environment friendliness and the like, can be used for large-scale preparation, and is convenient for industrial utilization.

The present invention relates to novel rebaudioside D and rebaudioside M-like steviol glycosides and a method for producing same. The novel rebaudioside D and rebaudioside M-like steviol glycosides obtained by the production method according to the present invention exhibit improved water solubility, and thus can be easily applied to beverages and foods with a high water content, and can significantly improve the industrial utilization of steviol glycosides.

The embodiment of the application relates to a low-density molded packaging product plant fiber material taking coconut fiber as raw material and a preparation method and application thereof, and belongs to the technical field of fiber packaging materials. The preparation method of the low-density molded packaging product plant fiber material taking coconut fiber as raw material comprises the following steps: step one, pretreatment; step two, chemical immersion; step three, grinding separation; step four, high-concentration immersion waste liquid extraction and impurity removal; and step five, fine grinding treatment. The fiber material provided by the embodiment of the application can improve the performance of molded products, further expand the application range of molded products, expand the industrial utilization range of characteristic plant fiber raw materials, improve the industrial utilization added value, reduce the dependence of the molded industry on paper pulp raw materials for papermaking, and relieve the pressure of insufficient paper pulp supply.

The utility model provides an RTO (Regenerative Thermal Oxidation) system suitable for high-concentration waste gas treatment, which comprises a regenerative oxidation furnace, a buffer tank and a detection unit, the gas outlet end of the buffer tank is connected with a combustion chamber in the heat accumulating type oxidation furnace after sequentially passing through a double-stop valve, a nitrogen purging device, a one-way valve and a flame arrester; the detection unit is arranged on the high-concentration waste gas inlet pipeline, and the detection unit and the double stop valves are in interlocking control. According to the RTO system, the oxygen content and the waste gas concentration in high-concentration waste gas can be monitored in real time through the detection unit, it is ensured that the oxygen content in the waste gas is lower than 2%, and the VOC concentration is lower than 25% or 20% of the minimum explosion lower limit, so that safety accidents such as explosion are effectively prevented, the whole RTO system can automatically adjust the operation mode according to the oxygen content, and the operation efficiency is improved. Manual intervention is reduced, the automation degree and operation stability of the system are improved, energy conservation, environmental protection and efficient operation are achieved, and the industrial utilization value is high.

This invention discloses an optimized method for a highly efficient fragmentation process of desert algae with high retention of active ingredients. The invention uses cell disruption rate, chlorophyll retention rate, and polysaccharide retention rate as core evaluation indicators, focusing on key parameters of the high-pressure homogenization fragmentation process (fracture pressure, fragmentation time, and algal liquor mass fraction). Effective ranges for these parameters are screened through single-factor experiments, and a multivariate synergistic regression model is constructed using response surface methodology to accurately predict the fragmentation effect and the retention rate of active ingredients. Experimental verification shows that the model has excellent fit; under optimal process conditions, the desert algae fragmentation rate is ≥91.5%, the chlorophyll retention rate is ≥76.9%, and the polysaccharide retention rate is ≥72.4%, significantly superior to existing ultrasonic fragmentation and enzymatic hydrolysis processes. This invention has advantages such as simple operation, high fragmentation efficiency, minimal loss of chlorophyll and polysaccharides, and high accuracy in predicting results. The fragmented products can be directly used in the development of desert algae fertilizers and other products, providing key technical support for the efficient industrial utilization of desert algae resources.

The present application relates to a kind of subsurface multi-parameter nanometer standard sample plate and its preparation method, including X tracking mark for locating and looking for calibration position, Y tracking mark and alignment mark, Z step calibration area for calibration, one-dimensional grid calibration area and two-dimensional grid calibration area, when using a kind of subsurface multi-parameter nanometer standard sample plate of the present application to carry out instrument calibration, current position can be quickly distinguished and positioned to the region to be measured by tracking mark and alignment mark, it can be used for the calibration and traceability of subsurface measuring instrument such as confocal microscope, white light interference microscope, ultrasonic atomic force microscope, provide guarantee for the accuracy of value in subsurface geometric parameter measurement, help the development of strategic emerging industries such as semiconductor, precision manufacturing, national defense and military industry, with high industrial utilization value.

The invention discloses a biocontrol bacillus amyloliquefaciens WYP1-4 for degrading feathers and application thereof, and belongs to the technical field of microorganisms. The bacterial strain is classified and named as bacillus amyloliquefaciens WYP1-4, and is preserved in the Guangdong Microbiological Culture Collection Center, the preservation number is GDMCC No.65114, and the preservation address is the 5th floor, No.59 floor, Institute of Microbiology, Academy of Sciences, Guangdong Province. The feather degradation rate of the strain reaches 93% (28 h), and the strain has high industrial utilization value and has a good antagonistic effect on tea tree pathogenic bacteria pestalotiopsis pseudomonas CLBB1 and aspergillus niger YC01.

The invention relates to the field of food microorganisms, and particularly discloses a bacillus pumilus T1-11 strain and an application of the bacillus pumilus T1-11 strain. The bacillus pumilus T1-11 is preserved in the China General Microbiological Culture Collection Center on January 10, 2025, and the preservation number is CGMCC NO.33025. The bacillus pumilus T1-11 has the characteristic of producing glutaminase, and can metabolize glutamine to generate glutamic acid; in addition, the strain T1-11 can also resist a salt environment, and the generated glutaminase can keep enzyme activity under the conditions of higher temperature and higher salinity. The bacillus pumilus T1-11 is further applied to soy sauce fermentation, the content of glutamic acid, isovaleraldehyde and amino nitrogen in soy sauce can be increased, and the delicate flavor of fermented food such as soy sauce can be improved. The bacillus pumilus T1-11 disclosed by the invention has an important industrial utilization value and a wide application prospect in the aspects of producing glutaminase and improving the delicate flavor of fermented foods.

The invention relates to a waste power battery black powder in-situ pyrolysis PVDF (Polyvinylidene Fluoride) fluorine fixation method, which comprises the following steps: performing pyrolysis treatment on waste power battery black powder in a mixed atmosphere of ammonia gas and oxygen; gas generated in the pyrolysis treatment process is absorbed, and fluorine fixation is achieved; the temperature of the pyrolysis treatment is 260 DEG C to 350 DEG C. According to the method provided by the invention, the mixed gas of ammonia gas and oxygen is used, so that the pyrolysis treatment temperature can be effectively reduced to 260-350 DEG C, and the energy consumption is reduced; the ammonia gas can be combined with HF generated by pyrolysis treatment to generate NH4F, so that the purpose of fixing fluorine is achieved; the produced NH4F has high industrial utilization value, and the economical efficiency of fluorine fixation is improved.

The application provides a ship CO2 hydrate capture system and method using waste heat energy and osmotic energy. The system comprises: a tail gas pretreatment module for sequentially performing cooling treatment, oxidation dust removal treatment and desulfurization and denitrification treatment on ship tail gas; a waste heat energy-osmotic energy power generation module for storing electric energy generated by organic Rankine cycle waste heat power generation and osmotic power generation; a hydrate method carbon capture module for bubbling and strengthening CO2 hydrate generation of flue gas after the tail gas pretreatment module, and forming hydrate slurry after CO2 hydrate accumulation, wherein a part of the hydrate slurry is subjected to CO2 capture, heating and pressure relief decomposition to produce purified water, and pure CO2 gas and purified water are obtained; another part of the hydrate slurry is subjected to filtration to obtain CO2 hydrate solid and storage; a CO2 transfer, utilization and storage module is used for directly storing the pure CO2 gas and the CO2 hydrate solid into the ocean or geology, or transporting the pure CO2 gas and the CO2 hydrate solid to downstream users for industrial utilization or biological utilization.

This invention provides a method for low-temperature water extraction of gallnut leaves, comprising the following steps: first, crushing the raw material to obtain gallnut leaf powder; mixing the gallnut leaf powder with pre-cooled purified water to form a liquid; adjusting the pH of the liquid at low temperature and then extracting; separating the solid and liquid at a low temperature of 5-18°C to remove waste residue and obtain a refined extract; further concentrating and purifying the refined extract to obtain a tannin extract. This method for low-temperature water extraction of gallnut leaves improves the comprehensive utilization rate of raw materials, simplifies the production process, reduces production costs, and improves production efficiency. It is suitable for the high tannin content of leaves from *Populus tomentosa* and *Populus thunbergii*, enabling the efficient and green industrial utilization of these raw materials.

The invention discloses an Apertus pallidofulvus Z-12 strain which is preserved in the Guangdong Microbial Culture Collection Center (GDMCC) on July 2, 2025, and the preservation number of the Apertus pallidofulvus Z-12 strain is GDMCC No: 66621. The Apertus pallidofulvus Z-12 strain is named as Apertus pallidofulvus Z-12 strain. According to the invention, several strains are separated from naturally stored tea seed meal, fresh tea seed meal is inoculated for fermentation, and in combination with an alpha-glucosidase inhibition rate, a new strain Aperbacillus pallidofulvus Z-12 for high yield of hypoglycemic active matters from fermented tea seed meal is screened and identified. Meanwhile, the Z-12 strain and the protease are innovatively and synergistically fermented under the optimal process condition, and the quality of the blood sugar reducing active matter in the tea seed meal is remarkably improved. The technology not only fills the technical blank of efficient utilization of high-quality protein of the tea seed meal, but also provides a brand new thought for industrial utilization of the tea seed meal.

The invention provides a steam pipeline drainage point arrangement method and system, a medium and a terminal.The arrangement method comprises the steps that basic information is extracted from a pipeline model of a steam pipeline, then drainage points are preliminarily set according to the basic information of the pipeline model, and then the similar drainage points are combined according to the corresponding arrangement principle; and obtaining a final hydrophobic point position. In addition, the genetic algorithm is used for carrying out cross combination on different arrangement schemes, so that various situations of the hydrophobic points at different positions are fully considered, and the optimal hydrophobic point arrangement scheme is obtained. According to the drainage requirement of the steam pipeline, the positions of the drainage points are represented through a series of data sets according to the drainage point arrangement principle and priority of the steam pipeline, convenience and simplicity are achieved, optimization can be conducted according to the drainage capacity of the system and the number of the drainage points, and the drainage point arrangement efficiency and accuracy are improved. Therefore, the invention effectively overcomes various defects in the prior art and has industrial utilization value.

The application relates to an LNG cold energy cascade utilization and multi-network collaborative optimization method based on liquid air energy storage, and belongs to the field of energy system engineering. A deep coupling model of LNG cold energy and liquid air energy storage (LAES) is constructed, and LNG cold energy is used to replace a traditional electric refrigeration link; a cold energy multi-stage recovery process covering power generation, refrigeration and industrial utilization is designed; an LAES scheduling model considering the peak-valley characteristics of an electric network and a multi-period electric-gas-cold multi-energy flow collaborative optimization framework are established; mixed integer linear programming and a multi-objective optimization algorithm are used for solving; system comprehensive evaluation based on exergy analysis and heat integration is carried out; dynamic operation parameter optimization based on sensitivity analysis is implemented; and an integrated control and adaptive control system based on a real-time model is deployed. The application realizes comprehensive utilization of LNG cold energy, economic scheduling of an energy storage system and stable collaboration of multi-energy networks, and significantly improves energy utilization, system economy and operation flexibility.

The invention discloses needle coke-based soft carbon, which has a carbon layer spacing of 0.344 to 0.348 nm, an average particle size range of 10 to 50 [mu] m and a specific surface area of 5.26 to 12.13 m < 2 >. G <-1 >. The preparation method of the needle coke-based soft carbon comprises the following steps: (1) drying, grinding and screening needle coke powder; (2) fully and uniformly mixing the needle coke powder obtained in the step (1) with an ammonium dihydrogen phosphate solution, and then drying; and (3) performing high-temperature carbonization treatment on the material dried in the step (2) in an inert atmosphere to obtain the needle coke-based soft carbon. The needle coke-based soft carbon is excellent in electrochemical performance, and the specific capacity, the rate capability and the cycling stability of a battery can be effectively improved; the preparation method is simple, low in cost, environment-friendly and suitable for industrial large-scale utilization.

The application relates to the field of food processing and discloses a synbiotic fermented donkey milk beverage and a preparation method thereof. The method takes freeze-dried donkey milk powder as raw material, adds water to a mass fraction of 12% for re-dissolution, adds a compound probiotic accounting for 4% of the total mass of the donkey milk liquid, uniformly mixes, homogenizes at 20 MPa for 40 s, sterilizes at 95 DEG C for 10 min, inoculates 3% mixed probiotic powder after the material liquid is cooled to 42 DEG C, and ferments at 42 DEG C for 7 h to obtain a fermented milk base. The base is diluted with distilled water at a mass ratio of 1:3, 6% sucrose and 0.4% food stabilizer are added and uniformly mixed, the mixture is subjected to secondary homogenization at 20 MPa and secondary sterilization at 95 DEG C for 15 min, and then the mixture is cooled to room temperature to obtain the synbiotic fermented donkey milk beverage. The application solves the problems of easy stratification and sedimentation, prominent fishy and rancid odor of natural donkey milk in the prior art, simultaneously makes up for the defects of low digestion utilization rate and insufficient functional activity of the product, and improves the high added-value industrial utilization level of donkey milk resources.

The invention discloses a preparation method and an application of a MoS2 coated red mud based composite material BR-MoS2. The MoS2 coated red mud based composite material BR-MoS2 is prepared The preparation method of the composite material comprises the following steps: S1, carrying out acid activation treatment on the red mud; s2, constructing a BR-MoS2 precursor solution by using the red mud in the S1; and S3, carrying out hydrothermal reaction on the precursor solution constructed in S2, and carrying out centrifugal cleaning to obtain the BR-MoS2 composite material. Compared with the prior art, the preparation method disclosed by the invention has the advantages that the MoS2 semiconductor material is coated on the surface of the red mud BR by utilizing a hydrothermal method; the stability of the red mud in the photocatalytic degradation process can be ensured through coating growth of MoS2 on the surface of the red mud; moS2 can broaden the absorption of the visible light region of the BR-MoS2 composite material; the composite growth MoS2 is a typical piezoelectric material and can induce an induced polarization electric field under the action of an ultrasonic field, a mass transfer mechanism in a photodegradation reaction process is coupled and enhanced, and the efficiency of photodegradation of organic pollutants is enhanced, the solvothermal method used in the invention is simple and low in consumption, the synthesis cost of a photocatalyst material can be greatly reduced, and the preparation method is suitable for industrial production. And the method has great industrial utilization value.

The present disclosure provides a water heating system for efficient heating of water for immediate use that fits either to industrial applications or household applications. The water heating system is suitable to be combined with a solar heating unit and it can be operated on electric power or on gas-based heating units for providing hot water to multiple consumers for household or industrial utilization. Furthermore, the system can be stand-alone, operating without any additional water heating system and can provide an immediate stream of hot water, e.g. it can be installed within a water supplying appliance. The water can operate in two modes: (1) heating for immediate use of hot water; and (2) heating water to be contained in a reservoir for later use. The system uses a two (bi) directional flow valve.

The utility model relates to the technical field of low-rank coal pyrolysis exhaust gas, in particular to a low-rank coal pyrolysis exhaust gas recycling device which comprises a recycling shell and further comprises a gas inlet pipe fixed in the recycling shell, and one side of the bottom of the recycling shell is fixedly connected with a connecting shell. An air inlet pipe is connected with an air discharging pipe, then a first pump head is opened to pump cooling liquid in a water cooling box into an annular cooling pipe to cool the surface of the air inlet pipe, meanwhile, three sets of blowing fans are matched for auxiliary cooling so as to reduce the temperature, and subsequent equipment is prevented from being damaged; then activated carbon and a dehumidizer in the partition shell and the discharging shell are matched to remove moisture in the gas, an adsorbent is matched to remove tar and other organic pollutants in the gas, then two filter plates are matched to finely filter the gas and then discharge the gas, and therefore it is ensured that the impurity content in the gas is low, and the industrial utilization requirement is met; therefore, dependence on traditional fossil fuel is reduced, and cyclic utilization of resources is promoted.

The invention discloses a grifola frondosa strain Grifola frondosa SiL91, which is preserved in China General Microbiological Culture Collection Center (CGMCC) on February 3, 2026, and the preservation number is CGMCC No. 42572. The grifola frondosa strain has the advantages that the preservation number is CGMCC No. 42572, and the preservation number is CGMCC No. 42572; meanwhile, the invention discloses a method for co-producing extracellular xylanase and cellulase through solid fermentation of the grifola frondosa strain. The invention discloses an application of a grifola frondosa strain for co-production of xylanase and cellulase in preparation of a product for degrading xylan and cellulose. According to the method, key culture media and conditions such as a carbon source and a nitrogen source in the culture process are optimized, strain metabolism and organic matter accumulation are improved, extracellular xylanase and cellulase are co-produced, and the enzyme yield is high. The strain provided by the invention has important value for industrial utilization of cellulase and xylanase resources.