191 results about "Sugar production" patented technology

The invention discloses a biological hydrogen production method for coupling a coal seam microbial community and beet pulp waste. The biological hydrogen production method comprises the following steps: step 1, collecting coal seam microorganisms; step 2, sample pretreatment; 3, preparing a culture solution; step 4, flora enrichment culture; and 5, constructing a biological hydrogen production system to obtain hydrogen-rich gas. Microorganisms adopted in the method are original microorganisms in underground in-situ coal seam or ground coal-bed gas well drainage and mining water, sugar industry waste beet pulp is adopted as a hydrogen production substrate, and aiming at the bottlenecks of high strain cost, limited substrate applicability and the like in an existing biological hydrogen production technology, the coal seam microorganisms and sugar industry waste residues are coupled, so that the yield of hydrogen is increased. A low-cost hydrogen production system is constructed, so that the economic cost in the microbial hydrogen production process is reduced, and the beet pulp has the advantages of being safe, easy to obtain, low in cost and high in gas production rate, has the advantages of being easy and convenient to operate, economical, efficient, environmentally friendly and the like, and has a good industrial application prospect.

The invention discloses a method and a system for producing high-purity medium-chain fatty acid (MCFA) based on waste molasses two-stage regulation fermentation. Comprising the following steps: (1) diluting waste molasses, then adding a compound enzyme agent of pectinase, beta-glucanase and cellulase, and coupling microwave to assist treatment; (2) inoculating the pretreated waste molasses with a composite flora containing a clostridium kluyveri mutant strain and a Megasphaera elsdeni engineering bacterium, and carrying out a fermentation treatment on the waste molasses, wherein the composite flora contains the clostridium kluyveri mutant strain and the Megasphaera elsdeni engineering bacterium; (3) sequentially performing two-stage dynamic regulation and control fermentation on the waste molasses inoculated with the composite flora through a pH-stat control strategy to realize efficient conversion from butyric acid to hexanoic acid / octanoic acid; and (4) a hydrophobic hollow fiber membrane module is adopted to realize on-line removal of the product, and the inhibition effect of the product is relieved. According to the technology, the yield of the MCFA produced from the waste molasses reaches 0.45 g / g COD, the cost is reduced by 68% compared with that of a traditional substrate, and a new way is provided for recycling of sugar manufacturing waste.

The invention discloses a bagasse filter mud composting method based on synergistic interaction of sargassum fusiforme and a complex microbial inoculant. The method comprises the following steps: mixing a sugar manufacturing byproduct bagasse and filter mud according to a certain dry weight ratio, and adjusting the moisture and carbon nitrogen ratio; synchronously adding sargassum fusiforme powder and a compound microbial agent, wherein the microbial agent is prepared by compounding bacillus licheniformis and phanerochaete chrysosporium; the high-temperature period is maintained for not less than 7 days, the total fermentation period is about 45 days, and the matured compost and the fertilizer thereof are prepared. The sargassum fusiforme is used as a natural conditioner, so that the composition of nutrient substances can be optimized, nitrogen and water are preserved, and heavy metals are passivated; and the lignocellulose is specifically degraded by the complex microbial inoculants. Through the synergistic effect of the bagasse and the filter mud, the high-temperature period of the compost is remarkably prolonged, the nutrient loss is reduced, the decomposition degree and the environmental safety of a compost product are improved, and an efficient and environment-friendly new way is provided for high-value resource utilization of the bagasse and the filter mud.

The utility model discloses a sugar boiling crystallizing tank applied to refined sugar, which comprises a tank body, the tank body comprises a heating chamber and a juice steam chamber, the juice steam chamber is positioned above the heating chamber, a plurality of heating tube nests, a central downcomer, a circulating pipe, a light ammonia discharge pipe and a heavy ammonia discharge pipe are arranged in the heating chamber, and a juice catcher is arranged at the top of the juice steam chamber. The juice catcher is provided with a juice steam outlet connected with the outer side of the tank body, a juice steam baffle is arranged below the juice catcher and located in the middle of the juice steam chamber, the outer side of the top of the juice steam chamber is sunken downwards towards the middle position, a stirring mechanism is arranged at the sunken position, and an output shaft of the stirring mechanism extends into the tank body and is connected with a detachable bearing on the outer side of the bottom of the tank body. The crystallization tank is reasonable in design, the circulation ratio of the crystallization tank is reduced due to the design of the circulation pipe, the convective circulation effect of massecuite in the crystallization tank is remarkable, in addition, the heat transfer effect is good, low-pressure juice steam can be comprehensively used as a heat source, and therefore the thermal economic benefit of a whole plant is improved.

The utility model relates to the technical field of stevioside production equipment, in particular to a stevioside raw material impurity removal mechanism which comprises a base and a multi-stage screening type winnowing cleaning assembly, the multi-stage screening type winnowing cleaning assembly comprises a conveying belt, a supporting column, an extension plate, a leveling frame and a sprayer, the supporting column is arranged on one side of the base, and the extension plate is arranged on the other side of the base. The conveying belt is detachably connected with the supporting column and located above the supporting column, the extension plate is detachably connected with the conveying belt and located on one side above the conveying belt, the leveling frame is detachably connected with the extension plate and located on one side above the extension frame, the leveling frame is arranged on the side, close to the base, of the extension frame, and the sprayer is detachably connected with the extension plate. The multi-stage screening type winnowing cleaning assembly is additionally arranged on the base and located on the side, away from the upper portion of the base, of the extension plate, and therefore the problems that existing vibration impurity removal equipment can only remove large-particle impurities, and some fine impurities such as soil particles and fine weed fragments are difficult to effectively remove are effectively solved.

The invention discloses a digital intelligent warehousing system for raw material sugar, and relates to the technical field of warehousing in the sugar industry. Comprising a candy unloading pit, a first belt conveyor, a second belt conveyor, a bucket elevator, a third belt conveyor, a rail-mounted unloading trolley, a fourth belt conveyor, a traveling leveling machine, a fifth belt conveyor, a sixth belt conveyor and a reversing valve which are sequentially arranged in the material flowing direction. A grate is arranged at the top of the candy unloading pit, a conical funnel with a flow regulating valve is connected below the grate, and the feeding end of the first belt conveyor is connected below the funnel; according to the system, the utilization rate of the warehouse space can be effectively increased, the working environment in the warehouse can be remarkably improved, accurate batch management and first-in first-out control of raw materials are achieved, meanwhile, safety risks and potential quality hazards caused by traditional manual operation are reduced, and the working efficiency is improved. And a more efficient, controllable and environment-friendly raw material storage solution is provided for the modern sugar industry.

A cross-feed method for evaporating diluted sugar juice in beet sugar production includes the following steps: The purified diluted sugar juice is fed into a four-effect evaporator for evaporation and concentration; the sugar juice output from the four-effect evaporator is fed into a first-effect evaporator for further evaporation and concentration, using exhaust steam from the power plant to heat the first-effect evaporator, with all secondary steam from the first-effect evaporator supplied as a heat source to the second-effect evaporator; the sugar juice output from the first-effect evaporator is fed into the second-effect evaporator for further evaporation and concentration, with all secondary steam from the second-effect evaporator supplied as a heat source to the third-effect evaporator; the sugar juice output from the second-effect evaporator is fed into the third-effect evaporator for further evaporation and concentration, with 60% of the secondary steam from the third-effect evaporator used as a heat source to the fourth-effect evaporator; the sugar juice output from the third-effect evaporator is fed into a fifth-effect evaporator for further evaporation and concentration, with 80% of the secondary steam from the fourth-effect evaporator used as a heat source to the fifth-effect evaporator. This invention offers high production efficiency, higher steam heat utilization, and good production stability.

The invention relates to a preparation method and application of a bio-based composite environment-friendly adsorbent, and belongs to the technical fields of biomass waste recycling, composite materials thereof, wastewater treatment and the like. The main raw material for preparing the adsorbent is derived from waste sugar filter mud in the sugar manufacturing process, and after low-energy activation treatment is conducted on the waste sugar filter mud, high-activity isocyanate and amine monomers are adopted on the surface of the waste sugar filter mud to conduct in-situ polymerization to generate polyurea; the preparation method does not need complex equipment and expensive reagents, is simple in process, low in reaction energy consumption and suitable for large-scale industrial production, and opens up a new path for the development of circulating biological economy; according to the prepared adsorbent, after five continuous adsorption-desorption cycles, the removal rate of Cd (II) and Pb (II) is still kept at 85% or above, and the decolorization rate of methyl orange dye is 96% or above, so that the adsorbent has high-efficiency treatment capacity on a heavy metal and dye pollution system, and a technical scheme with extremely high competitiveness is provided for deep treatment of industrial wastewater and environmental ecological restoration.

The utility model discloses a straw sugar making system coupled with a biomass power plant. The straw sugar making system comprises a straw sugar making subsystem and a straw sugar making subsystem, wherein the straw sugar making subsystem comprises a bundling device, and a bundle breaking device, a first-stage iron removal device, a primary sorting device, a second-stage iron removal device, a secondary sorting device, a third-stage iron removal device, a crushing device, a third sorting device, a drying device, a crushing device, a powder tank device, a catalytic saccharification device, a solid-liquid separation device and a sugar liquid concentration device which are sequentially connected; the biomass power plant subsystem comprises a stock ground, a biomass boiler, a steam turbine and a generator which are connected in sequence; a discharging port of the bundling device is connected with a feeding port of the stock yard, and a discharging port of the stock yard is connected with a feeding port of the bundle breaking device. A heat source inlet of the drying device is connected with a biomass boiler heat outlet; a steam inlet of the catalytic saccharification and liquid glucose concentration device is connected with a steam outlet of the turbine; a generator electricity outlet is connected with an electricity inlet of the straw sugar manufacturing subsystem. The system can make full use of mature fuel collection and storage systems, infrastructures, green heat, green electricity and the like of the biomass power plant, the investment and operation cost of the straw sugar making system is reduced, and the survivability of the power plant is improved.

The utility model discloses a kind of sugarcane raw material self-unloading impurity removal conveying systems, belong to sugarcane conveying technical field.The application includes: self-unloading device and first cane conveyer;One end of first cane conveyer is horizontal end, and its other end is inclined upward;Self-unloading device is located at the horizontal end of first cane conveyer;Impurity removal device for sugarcane segment impurity removal;Impurity removal device includes net chain conveyer, push plate, rack and impurity removal box;Impurity removal box is set on rack;Net chain conveyer is set in impurity removal box;One end of net chain conveyer is horizontal end, and its other end is inclined upward;The end of impurity removal box close to net chain conveyer horizontal end is located just below the inclined end of first cane conveyer, and it is close to the top end of net chain conveyer inclined end and is provided with discharge port;Push plate is vertically set on net chain conveyer conveyor belt;Second cane conveyer, one end is located just below the discharge port of impurity removal box.The application is by the mode that water flow is sprayed by spray head, effectively washes silt on sugarcane segment, so as to facilitate subsequent sugarcane segment juice extraction sugar.

This utility model relates to a white sugar sampling device, belonging to the field of sugar production equipment. The sampling tube of the white sugar sampling device is connected to the feeding pipe of the sugar hopper. A sampling port is provided on the side of the sampling tube. The sampling tube is inserted through the sampling port. The cylinder is a piston cylinder. The sampling tube is pushed into the feeding pipe of the sugar hopper through the sampling port by the piston cylinder for sampling. The piston cylinder is controlled by a solenoid valve. During the retraction of the sampling tube, the white sugar leaks from the feeding plate into the feeding pipe, and then leaks into the material bucket through the feeding pipe, connecting pipe, and discharge pipe, thus completing the sampling. The sampling operation is carried out in a space-saving manner, which can effectively prevent the white sugar sample from being contaminated by other substances.

The utility model provides a device for removing liquid adhered to the surfaces of solid particles. The device comprises a conveying chain assembly, a suction filtration assembly, filter cloth and a first filter pressing roller, a plurality of suction filtration assemblies are arranged on the surface of the conveying chain assembly in the annular direction of the conveying chain assembly, the suction filtration assemblies are wrapped with the filter cloth in the annular direction, the conveying chain assembly can drive the filter cloth to rotate in the annular direction, the filter cloth is used for bearing solid particles and permeating liquid media, and the suction filtration assemblies are used for suction filtration of the liquid media permeating through the filter cloth. The plurality of first filter pressing rollers are respectively arranged below the suction filtration assembly at the advancing straight line section of the conveying chain assembly; the conveying chain assembly drives the filter cloth to rotate, so that the first filter pressing roller sequentially extrudes the bottoms of the suction filtration assemblies, and solid-liquid separation is achieved. The device for removing the liquid adhered to the surfaces of the solid particles is simpler and more energy-saving, and can effectively solve the problem that the liquid adhered to sugar precipitation particles and lignin particles needs to be separated in the process of producing sugar by hydrolyzing plant fiber raw materials with concentrated acid.

The present application relates to the technical field of sugar production, and particularly relates to a sugar juice color value online detection method and system and a process parameter control method and system. The method collects sugar juice color values and key process parameters in real time and constructs a digital feature vector; a dynamic coupling relationship model is trained using historical and real-time data, a baseline color value evolution trajectory is predicted, and a backup collaborative adjustment scheme library covering multiple process scenarios is generated in advance; real-time multi-step trend prediction is performed on the color value, when the prediction deviates from the optimal range, the scheme library is queried in real time according to the deviation characteristics, and a pre-adjustment scheme with the minimum comprehensive process cost is quickly calculated, the pre-adjustment scheme is analyzed and converted into feedforward collaborative adjustment instructions for the auxiliary material adding system and each process execution unit, active and accurate closed-loop control is realized, the lag problem of traditional offline detection and manual control is effectively solved, the predictability and collaboration of color value control are improved, and product quality stability and production efficiency are ensured.

The invention belongs to the field of sugar industry, and discloses a method for enriching and separating sugarcane flavor substances. A co-processing method of sugarcane juice acid adjustment, heating, vegetable tannin coagulation, plate frame filtration, secondary heating, high-temperature evaporation, condensation, subcritical extraction and distillation is mainly adopted, filtered juice subjected to existing plate frame filtration treatment is high in quality, the water content of a filter cake is low, and the extraction, enrichment and purification processes of sugarcane flavor substances are green production processes. The method has the advantages that the method is simple in operation, the influence on subsequent processing of the sugar juice is small, the comprehensive utilization value of the obtained filter mud, deodorized water and other byproducts is high, the sugarcane flavor substance enrichment and separation system has the characteristics of compact and advanced equipment, high efficiency and the like, products are diversified, the value of the byproducts is high, and the comprehensive economic benefit and social benefit are very remarkable.

The utility model relates to the technical field of starch dehydration, and discloses starch milk dehydration equipment for preparing sugar from starch, which comprises a shell, the top of the shell is fixedly connected with a feeding funnel, the left side of the shell is fixedly connected with a derivative support block, the top of the derivative support block is fixedly connected with a polarization dehydration mechanism, and the polarization dehydration mechanism is fixedly connected with a rotary shaft. The top of the shell is fixedly connected with a dehydration storage box, the bottom of the dehydration storage box is fixedly connected with a polarization auxiliary mechanism, and the two sides of the dehydration storage box are fixedly connected with funnel dredging mechanisms. According to the starch milk dehydration device, starch milk enters the shell through the feeding funnel and then falls into the dehydration storage box in the shell, and in the process, the dehydration supporting block connected through the connecting block is driven by the dehydration storage box to reciprocate along with the dehydration storage box, so that the dehydration supporting block is driven to reciprocate; and then the dredging pipe is driven by the dehydration supporting block, so that the starch milk blocked in the feeding funnel is pushed.

The utility model relates to a starch milk size mixing tank, which belongs to the technical field of starch sugar production and comprises a tank body and a stirring system, the stirring system comprises a motor, a rotating shaft, a main stirring blade and an auxiliary stirring blade, the motor is arranged at the bottom end of the tank body in a vertically upward direction, the rotating shaft is coaxially arranged at the output end of the motor, and the main stirring blade is arranged on the rotating shaft. A plurality of groups of main stirring blades are arranged, and are uniformly arranged on the surface of the rotating shaft; a penetrating through hole is formed in the surface of the main stirring blade, the length direction of the through hole is consistent with that of the main stirring blade, the two ends of the auxiliary stirring blade in the length direction are rotationally connected to the two side walls of the through hole in the length direction respectively, and a transmission assembly for driving the auxiliary stirring blade to rotate is arranged on the inner wall of the tank body. According to the starch milk size mixing tank, the main stirring blade and the auxiliary stirring blade rotate at the same time, so that the stirring efficiency of materials in the tank body is improved.

The utility model discloses a continuous sampling mechanism for white granulated sugar production. The continuous sampling mechanism comprises a conveying device, a sampling device and a control unit, the conveying device comprises a base, a support and a conveying bin, a conveying cavity is formed in the conveying bin, a feeding port and a discharging port are formed in the two ends of the conveying bin respectively, and the feeding port and the discharging port are perpendicularly arranged and communicate with the conveying cavity. The conveying device can convey materials falling into the conveying cavity from the feeding port to the discharging port. The sampling device comprises a sliding groove, a sampling pipe and a sampling cup, the sliding groove is fixedly formed in the upper end face of the base, the sampling pipe is obliquely arranged on the outer side of the discharging port, the inlet end of the sampling pipe is fixedly connected and communicated with the discharging port, the outlet end of the sampling pipe extends to the position above the sliding groove, and the sampling cup is used for collecting materials falling out of the sampling pipe. According to the utility model, the sampling is automatically controlled while the white granulated sugar is conveyed, so that the white granulated sugar is continuously sampled, and the sampling efficiency of the white granulated sugar is improved.

The invention discloses a method for preparing monosaccharide from lignocellulose biomass and acid circulation, which comprises the following steps of: (1) performing swelling reaction on the lignocellulose biomass by using more than 70 weight percent of inorganic acid solution to obtain high-acid biomass candy pomace; (2) extracting the obtained high-acid biomass candy pomace with an organic solvent to obtain low-acid biomass candy pomace and an acid-containing organic phase; and (3) adding the low-acid biomass candy pomace into water and / or an acid solution to prepare a mixed solution with the acid concentration of below 30wt%, and carrying out hydrolysis reaction to obtain a reaction solution containing monosaccharide. The process provided by the invention not only can effectively solve the problems, including invalid degradation of carbohydrates, small molecular byproducts and complex and harsh reaction conditions, existing in the process of preparing sugar from lignocellulose, but also can effectively improve the acid recovery rate while keeping relatively high glucose yield and xylose yield.

The utility model discloses a kind of beet unearthed block recovery device, which relates to beet sugar-making equipment technical field;Including blanking platform, moving rail, walking wheel, support frame, separation conveyor belt, motor;The surface of the blanking platform is opened with discharge port corresponding to the position of beet soil-removing machine unearthed mouth;The both sides of the discharge port are horizontally fixed with moving rail;The lower portion of the moving rail is equipped with support frame;The top of the support frame is equipped with walking wheel;The walking wheel is driven along the groove of the both sides of moving rail by motor;The bottom of the support frame is obliquely equipped with separation conveyor belt;The conveying direction of the separation conveyor belt is conveyed from low side to high side direction;Through the device, the soil material screened by beet soil-removing machine can be further secondary separated, a part of small beet block is recovered, the utilization rate of beet is improved, and the device can be selectively used according to requirements.

The utility model relates to the field of food processing mechanical equipment, in particular to production equipment which is high in production efficiency, low in production cost and capable of producing hollow straws, and comprises a rack, a box body, a box cover, a control system, a driving mechanism, a transmission mechanism, at least four conical rollers and a supporting pipe assembly, an opening is formed in the box body, the box cover covers the opening, a discharging port is formed in one longitudinal end of the box body, the conical rollers are rotatably arranged in the box body, the central axes of the conical rollers are distributed in the longitudinal direction, one longitudinal end of each conical roller is annularly arranged on the peripheral side of the discharging port, and the driving mechanism is connected with the other longitudinal end of each conical roller through the transmission mechanism. The driving device is used for driving the conical rollers to rotate in the same direction, a rolling and extruding area used for rolling and extruding massecuite is defined by the conical rollers, the supporting pipe assembly is distributed in the middle of the rolling and extruding area, the central axis of the supporting pipe assembly is distributed in the longitudinal direction, and the longitudinal end of the supporting pipe assembly penetrates out of the discharging port.

This invention relates to the field of road dust suppression technology, specifically to a bio-based dust suppressant that can be used for road reinforcement. Based on 100% solid content, it contains the following components in the following weight ratio: 100 parts xylose mother liquor and 3-50 parts polyamine crosslinking agent; wherein the xylose mother liquor contains 20%-70% solids by weight, with the remainder being water; wherein the solids contain ≥50% reducing sugars by weight, including D-xylose, L-arabinose, D-glucose, and D-galactose, and the xylose content in the solids is ≥20%. The dust suppressant obtained by this invention uses a large amount of waste xylose mother liquor, a byproduct of the sugar industry. This product is a renewable resource and a low-carbon renewable product. Furthermore, the dust suppressant obtained by this invention not only has dust suppression function but also good compressive strength and water resistance, and can be used as a soil stabilizer. Applying the dust suppressant of this invention to roads can produce a pavement system with excellent overall performance.

The invention provides a double-effect molasses fruit and vegetable juice prepared by emulsifying cane molasses with sucrose fatty acid ester, and the double-effect molasses fruit and vegetable juice is prepared from raw materials consisting of cane molasses and sucrose fatty acid ester through a preset preparation process, the preparation process sequentially comprises three core steps of sucrose fatty acid ester dilution and activation treatment, cane molasses dilution treatment and mixed biological activation treatment, and all operations in the whole preparation process are completed in a container made of a food-grade stainless steel material. According to the present invention, the sugar production by-product cane molasses is compounded with the food-grade emulsifier according to the fixed ratio of 99: 1 to form the stable emulsification system, no harmful additive is used, such that the molasses dispersibility is improved, the raw material environmental protection utilization is achieved, the requirements of flavor enhancement and nutrition improvement in the food processing field are met, and the food safety standard is met.

The utility model relates to the technical field of white granulated sugar production, in particular to a packaging bag sealing machine for white granulated sugar production, which comprises a supporting mechanism and a sealing mechanism for sealing a packaging bag, and the sealing mechanism is fixed above the supporting mechanism. By arranging the sealing mechanism, when sealing is started, the motor is started, the motor operates to drive the bidirectional threaded rod to rotate, the bidirectional threaded rod rotates to drive the two movable tables to move oppositely along the guide rods, the fixing frames move along with the two movable tables, the two sets of fixing frames moving oppositely extrude and fix the upper end of a packaging bag, and after fixing is completed, an air cylinder and a heat sealing head are started; the air cylinder operates to drive the heat sealing heads to move, the two heat sealing heads moving in the opposite directions conduct sealing treatment on the packaging bag, after sealing is completed, the air cylinder operates to enable the heat sealing heads to return to the original positions, and in the sealing process, the upper end of the packaging bag is in a fixed state all the time under the action of the multiple fixing frames. In this way, the packaging bag can be smoothly separated from the heat sealing head after sealing is completed.

The invention discloses bagasse fiber and bagasse ash composite modified clay as well as a preparation method and application thereof, and relates to the technical field of soil improvement and ecological restoration. According to the invention, bagasse fiber and bagasse ash produced in the cane sugar industry are used as clay modified core materials, so that high-valued utilization of agricultural wastes is realized, environmental pollution caused by solid waste stacking is reduced, traditional inorganic modifiers such as cement and lime are replaced, and carbon emission of engineering construction is reduced; through the composite synergistic effect of the bagasse fibers and the bagasse ash, the bagasse fibers can improve the shear strength and the crack resistance of soil through the physical winding effect; active ingredients such as SiO2 and CaO in the bagasse ash can be subjected to cementation reaction with soil particles, so that the compactness and cohesion of the soil are improved, the technical problems that a soil slope is easy to lose stability and easy to seep water are effectively solved, the comprehensive performance of the clay is comprehensively improved, and the engineering stability is higher.

The invention relates to the technical field of biomass resource utilization, in particular to a method for preparing corn stalk syrup from green corn stalks and application. The method for preparing the corn stalk syrup comprises the following steps: S1, raw material pretreatment: cutting green corn stalks into sections of 3cm, and performing soaking treatment with a surfactant; s2, squeezing and separating: carrying out two-stage squeezing on the pretreated straws, namely carrying out first-stage rolling crushing and second-stage spiral squeezing, and separating straw normal juice and straw residues; s3, enzymolysis saccharification: adding a compound enzyme preparation into the normal straw juice, and performing two-stage enzymolysis; s4, membrane separation and purification: carrying out separation and purification on the saccharified liquid by adopting an ultrafiltration-nanofiltration combined technology; s5, vacuum concentration: concentrating the purified sugar solution to prepare corn stalk syrup; and S6, by-product treatment: carrying out steam explosion treatment on straw residues generated by squeezing, and carrying out anaerobic fermentation to prepare feed or compression molding to prepare fuel particles. The invention constructs a high-efficiency and low-cost process for preparing sugar from green corn straws, and realizes full-quantitative utilization of residues.

This utility model discloses a mixer for white sugar production, belonging to the field of mixers. It includes a mixing vessel with an internal mixing assembly, an external feeding and discharging assembly, and an external shaking assembly. The key technical point is that a motor drives a transmission shaft to rotate, which in turn drives a connecting rod and a connecting column to rotate. This causes the connecting column to move along a sliding groove while simultaneously driving a connecting piece to rotate around the rotating shaft. The connecting piece then drives a second connecting column to move along a sliding groove, simultaneously moving a positioning plate and the mixing vessel. The bottom of the mixing vessel is constrained by a support frame and a rotating shaft, rotating around the shaft while the top moves with the connecting piece. Ultimately, this causes the mixing vessel to sway left and right around the shaft, shaking up the white sugar deposited at the bottom of the mixing vessel, enhancing the fluidity of the white sugar, preventing it from adhering to the bottom of the mixing vessel, and ensuring effective mixing and normal discharge of the white sugar.

Belonging to the technical fields of genetic engineering and enzyme engineering, disclosed are an α-amylase mutant and a use thereof. Compared with a parent α-amylase having an amino acid sequence shown in SEQ ID NO: 1, the α-amylase mutant has disulfide bond site pair mutations, the disulfide bond site pairs having the following characteristics: i. not being within 5 Å of an active site of the α-amylase mutant; ii. the difference in amino acid position numbering being greater than 10; iii. the distance between the SG atoms of the two cysteines forming the disulfide bond is within 5 Å; iv. the Chi3 angle satisfies 60°<Chi3<120° or -60°>Chi3>-120°. The provided α-amylase mutant exhibits significantly improved thermostability and / or acid resistance, with most α-amylase mutants possessing both excellent acid resistance and excellent thermostability, and higher hydrolytic activity toward starch, better meeting the needs of deep-processing industries using starch as a raw material, such as sugar production, brewing, alcohol and organic acids.

The invention provides a preparation method of a bio-based composite adsorption material, which comprises the following steps: mixing and stirring crayfish shells, onion skins and sugar industry wastewater, adjusting the pH value by ammonia water, carrying out fermentation reaction, cooling to room temperature after the reaction is finished, filtering, and separating to obtain a solid product carbon-based precursor and filtrate; adding copper nitrate hexahydrate powder into the filtrate, and slowly stirring at room temperature to obtain a mixed solution; and mixing the solid product carbon-based precursor obtained by fermentation with the mixed solution according to a certain mass ratio, putting the mixture into a reaction kettle, introducing ammonia gas, heating to react for a certain time after a certain pressure is reached, immediately cooling after the reaction is completed, and then filtering, washing and drying to obtain the pollutant adsorption material. According to the method, fermentation and hydrothermal technologies are coupled, co-treatment of the kitchen waste crayfish shells, onion skins and sugar making wastewater is achieved, and meanwhile high-value utilization of the kitchen waste is achieved through liquid products in the fermentation process. The prepared solid product has a porous structure and good adsorption performance.