44 results about "Waste production" patented technology

The invention discloses an unequal-thickness unequal-strength metal part machining method and part machining equipment, and belongs to the technical field of part machining. The machining procedures can be simplified, the production efficiency is improved, waste is reduced, the production cost is reduced, all the machining procedures are collaboratively optimized, and the part machining quality stability is improved. The method comprises the steps that thickness distribution and strength distribution of a target metal part are determined according to the application state of the target metal part, and the target metal part is divided into at least two area components. And then determining the required metal coiled material corresponding to the region component. And based on the tailor-welding parameters, the tailor-welded coiled material is formed by the multiple metal coiled materials through the tailor-welded laser technology. And finally, the tailor-welded coiled material forms a target metal part through a rolling process based on the rolling parameters.

The invention discloses a hazardous waste disposal facility matching and early warning system and method based on multi-source data fusion in the technical field of hazardous waste disposal, and the system comprises a data collection module which is used for obtaining multi-source heterogeneous data; the data preprocessing module is used for analyzing, cleaning and standardizing the multi-source heterogeneous data to obtain standardized data; the intelligent analysis module is used for analyzing the standardized data to obtain a matching result or an early warning result; the intelligent analysis module comprises an intelligent matching sub-module which is used for calculating a comprehensive score of the hazardous waste disposal unit according to a multi-factor weighting algorithm and generating a matching result according to the comprehensive score. According to the system, data of multiple data sources are integrated through the data acquisition module, standardized data are obtained through the data preprocessing module, and the intelligent analysis module recommends disposal units for waste production enterprises based on a multi-factor weighting algorithm and the standardized data, gives out multi-level early warning and reasonably configures hazardous waste disposal resources.

The application discloses a continuous fiber reinforced thermoplastic composite material recycling system which can effectively reduce energy consumption, reduce recycling cost and avoid secondary waste production. The continuous fiber reinforced thermoplastic composite material recycling system comprises a waste recycling device, a conveying device, a double-screw extruder, a discharging heat preservation cabin and a mold pressing forming device; the material extrusion outlet at one end of the double-screw extruder is communicated with the discharging heat preservation cabin; the conveying barrel of the extruder is provided with a fat matrix feeding port and a waste inlet above one end; the conveying device is arranged between the waste recycling device and the waste inlet; the discharging heat preservation cabin is provided with a discharging port; the discharging port of the discharging heat preservation cabin is provided with a material adjusting device; and the mold pressing forming device provides mold pressing forming raw materials through the material adjusting device. The continuous fiber reinforced thermoplastic composite material recycling system can improve recycling efficiency, reduce recycling cost and avoid secondary pollution.

The invention relates to the technical field of artificial intelligence, and particularly provides a garbage production capacity prediction method and device, a storage medium and a program product. According to the method, by constructing a road network Voronoi diagram of a garbage collection point, the total length of roads in the strength range of the garbage collection point can be calculated, and then the average garbage intensity coefficient is calculated by combining the total length, single-day garbage total amount data, single-day people flow total amount and per capita browsing time of a to-be-predicted area; and finally, based on the average garbage intensity coefficient, the tourist visiting speed, the number of tourists entering the to-be-predicted area at the prediction moment, the total length and the shortest distance between the garbage collection point and the entrance of the to-be-predicted area, the garbage production amount of the garbage collection point at the prediction moment is predicted. By adopting the scheme of the embodiment, the garbage production capacity of the garbage collection point of the to-be-predicted region at the prediction moment is predicted.

The invention relates to a biomass solid waste blending combustion optimization method based on dynamic regionalization calculation and multi-dimensional evaluation. The biomass solid waste blending combustion optimization method comprises the following steps: constructing a biomass solid waste classification system; establishing a dynamic calculation model; the method comprises the following steps: acquiring agriculture and forestry production data in a region in real time on the basis of a dynamic calculation model, adjusting dynamic parameters in the dynamic calculation model, outputting a yield calculation result of regional biomass solid waste through the dynamic calculation model, and constructing a multi-dimensional combustion characteristic evaluation index database on the basis of calculation result data; determining a weight coefficient of each combustion characteristic index through an analytic hierarchy process, and constructing a fuel suitability evaluation model; and calculating a fuel suitability comprehensive index, and generating a blending combustion proportion recommendation value so as to obtain a blending combustion optimization scheme. Compared with the prior art, the method has the advantages that the dynamic calculation model and the multi-dimensional combustion characteristic database are constructed, so that the problem of lack of systematic planning and basic data support for resource utilization in biomass blending combustion in the prior art is effectively solved.

The invention discloses a wire coil diameter adjusting device and method for a silking machine, the wire coil diameter adjusting device comprises a conveying roller way and two limiting units, the conveying roller way is used for bearing and driving a coil discharged by the silking machine to move, and the two limiting units are used for limiting the motion trails of the coil on the conveying roller way along the two sides of the width direction of the conveying roller way respectively; the limiting units are used for limiting the size of a coil on the conveying roller way in the width direction of the conveying roller way, and the position of each limiting unit in the width direction of the conveying roller way can be adjusted. By arranging the limiting unit, the position of the limiting unit can be adjusted in the width direction, the coil diameter requirements of wire rods of different specifications can be rapidly met, and downstream customers do not need to adjust coils. While the cost is reduced, the requirements of downstream customers for high-efficiency, low-cost and low-waste production and customization are met, the resource utilization rate is increased, and the carbon emission is reduced.

The invention discloses a solid waste space-time positioning and attribute association method based on a voxel knowledge unit, and relates to the technical field of environment monitoring and pollution tracing. The method comprises the following steps: identifying a three-dimensional abnormal voxel with a space-time range by acquiring multi-modal environment data such as an Internet of Things sensor and unmanned aerial vehicle remote sensing; constructing a voxel knowledge unit library integrating space-time tags, waste attribute tags, environment attribute tags and source tags; associating the abnormal voxels with the VKU through space-time matching and causal association between waste attributes and environment abnormal indexes; based on the principle of consistency of three conditions of time, space and attribute, the VKU is matched with enterprise waste production / dumping records; and finally, through multi-source cross verification such as laboratory detection, track verification and witness inquiry, the traceability result is ensured to be accurate. The space-time precision of pollution traceability and the causal association reliability are improved, a scientific basis is provided for pollution responsibility determination, and the problems that an existing method is low in space-time precision, poor in multi-source data integration, insufficient in result credibility and the like are solved.

The invention relates to the technical field of site selection of recycling facilities, in particular to a new construction waste industrial park site selection method based on grid analysis. Comprising the following steps: determining a site selection evaluation area, an industrial park processing scale and grid unit parameters; converting the rigidity and flexibility evaluation indexes into a rasterized thematic map layer; building waste generation amount estimation, space distribution and building waste generation distribution map layer generation; performing Boolean overlay analysis on the hard indexes to obtain a primary selection range; the weight of the flexible index is determined by adopting a CRITIC method, and an alternative site selection scheme is obtained after weighted superposition analysis; and constructing a multi-objective optimization model of the newly-built construction waste industrial park, and obtaining a Pareto optimal solution set through an NSGA-II algorithm. According to the method, the generation space distribution of the construction waste and the objectivity of the index weight are comprehensively considered, the scientificity and systematicness of site selection of the construction waste industrial park are improved, and the method has good universality and popularization value.

The utility model discloses a biomass straw particle forming and cooling device which comprises a cooling box, the upper end of the cooling box is communicated with a feeding hopper, a discharging speed adjusting assembly is arranged at an outlet in the bottom of the feeding hopper, and the bottom of the side face of the cooling box is connected with a cold air conveying pipeline. A plurality of vertically arranged material slow-descending funnels are fixedly arranged in the cooling box, a plurality of uniformly distributed air holes are formed in the material slow-descending funnels, conical slow-descending hoppers are fixedly arranged on the inner wall of the cooling box and located above the material slow-descending funnels, and channels for materials to fall down are formed between the peripheries of the bottom edges of the conical slow-descending hoppers and the inner wall of the cooling box; according to the utility model, the traditional stirring mode is abandoned, and the design of combining the conical slow hopper and the material slow descending hopper is utilized, so that biomass particles slowly slide down in the cooling box and are reversely cooled by cold air, the crushing of particles which are not completely formed due to stirring is avoided, and the generation of waste products is effectively reduced.

The utility model discloses a kind of folding OCA processing waste production equipment, including rack, pre-pressing device, first die cutting device, second die cutting device, third die cutting device, pressure device, OCA original film unwinding device, single layer silica gel film unwinding device, silica gel protective film finished product winding device, OCA release film winding device, waste PET film winding device, high-viscosity original film unwinding device, waste winding device, release film unwinding device and edge material unwinding device;The pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device are sequentially horizontally and side by side spaced apart on the rack;By cooperating and setting pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device, so that silica gel protective film is cut in multiple times in the process of production, so that processing is smooth, effectively pulls OCA waste, improves processing efficiency, improves product edge bubble, glue and other quality bad, bring convenience for production operation.

The utility model relates to the technical field of industrial solid waste residue treatment in cement production, in particular to equipment for producing cement from industrial solid waste, which comprises a crushing box and an auger conveyor body mounted below the crushing box. Two servo motors and two water pumps are fixedly connected to the crushing box, and two guide plates arranged in an inverted splayed shape are fixedly connected to the interior of the crushing box; two sliding assemblies are arranged on the smashing box, each sliding assembly comprises an installation block installed on the smashing box through a first spring, and a brush is fixedly arranged on one side of each installation block. According to the marble leftover material crushing device, clean water is sprayed to the surfaces of the crushing rollers to wash the crushing rollers, so that the crushing rollers can be cleaned more thoroughly, the crushing effect of marble leftover materials can be effectively prevented from becoming poor, and the use of equipment is facilitated.

The utility model relates to the field of metal processing and manufacturing, in particular to aluminum alloy die-casting equipment with a temperature compensation function. The aluminum alloy die-casting equipment with the temperature compensation function comprises a supporting frame, a stamping assembly, guide rods, a sliding plate and the like, the stamping assembly is arranged on the right side of the supporting frame, the four guide rods are connected to an installation plate of the stamping assembly, and the sliding plate is connected among the four guide rods in a sliding mode. Through the arrangement of the heating refrigerator, the temperature sensor and the controller, the temperature sensor monitors the temperature change in the first mold cavity and the second mold cavity in real time and feeds data back to the controller, and the controller automatically adjusts the working state of the heating refrigerator according to a set value; the temperature in the first mold cavity and the temperature in the second mold cavity are always kept within the ideal pouring range, the precise temperature control system effectively avoids production interruption or waste products caused by temperature abnormity, and the quality and consistency of aluminum alloy workpieces are improved.

Provided is a method for preparing Compound II, wherein the method includes the following steps: using Compound I as a raw material, performing a reaction under the action of an organometallic catalyst and a phase transfer catalyst, and oxidizing with hydrogen peroxide to obtain Compound II. The catalyst utilized in the present application exhibits remarkably high activity for the oxidation of sulfur ether compounds, leading to the preparation of sulfone compounds. The method for preparing Compound II significantly reduces the amount of catalyst required, effectively diminishing the consumption of non-renewable scarce strategic resources, while concurrently reducing the potential hazards to the natural environment. The novel method exhibits a substantial reduction in the amount of catalyst required, leading to a concurrent decrease in the consumption of non-renewable resources. Concurrently, it significantly mitigates potential harm to the natural environment and human health. The solvent utilized in this method is easy to be recycled and reused, and enhances overall process efficiency by reducing resource consumption, waste generation, and treatment costs, thereby rendering it more suitable for industrial production.

The utility model relates to the technical field of production of soil amendment from solid waste, and particularly discloses a device for producing soil amendment from industrial solid waste, which comprises an upper tank body and a lower tank body, an activation mechanism is arranged in the upper tank body, the activation mechanism comprises two symmetrically distributed rotating shafts which penetrate through and are rotatably connected to the upper end of the upper tank body, spiral blades with sawteeth are fixedly connected to the outer walls of the two rotating shafts, gears are fixedly connected to the outer walls of the two rotating shafts, the two gears are meshed with each other, and supporting rings are fixedly connected to the interiors of the upper tank body and the lower tank body; a strong shearing force field is formed through meshing transmission of two reversely-rotating sawtooth spiral blades and a gear, the cavitation effect of an ultrasonic generator is matched, the silicate crystal depolymerization time is shortened, heavy metal is stabilized and strengthened, an annular drainage pipe and a flow guide pipe form double-layer atomization covering, and the heavy metal is converted into stable sulfide; and the risk of heavy metal migration is fundamentally blocked.

The utility model discloses a fly ash synergetic waste acid neutralization treatment system, which is used on a waste acid neutralization treatment operation line and comprises a material storage unit, a waste acid conveying unit, a fly ash conveying unit, a synergetic treatment unit and a finished product temporary storage unit which are sequentially arranged, the co-processing unit is used for receiving physico-chemical heteroacid and fly ash and executing a fly ash co-waste acid neutralization treatment process, the co-processing unit comprises a reaction chamber provided with a stirring device, a discharging hopper is arranged at the feeding end of the stirring device, and an adjustable gate valve is further arranged between the discharging hopper and the feeding end of the stirring device; and the finished product temporary storage unit is used for storing the finished product storage device from the cooperative processing station. According to the utility model, the gas treatment device and the corrosion-resistant plate are introduced, and the gate valve is linked with the hydraulic transmission device, so that the influence of waste acid on equipment corrosion is remarkably reduced, excessive addition of auxiliary materials and increase of secondary waste production are avoided, waste is treated by waste, and the treatment cost is remarkably reduced.

The utility model discloses a microporous net flattening and cutting device, which relates to the technical field of microporous net processing and comprises a pressure flattening device, fixed connecting plates are arranged behind the left side and the right side of the pressure flattening device, and the top ends of the two fixed connecting plates are fixedly connected with a laser cutting device together. The laser cutting device is located above the top end of the rear side of the pressure leveling device. The two pressure rollers which are parallel up and down in the pressure leveling device are used for leveling the microporous net, and the distance between the upper pressure roller and the lower pressure roller can be adjusted through the distance adjusting assembly so as to adapt to microporous nets with different thicknesses, so that the microporous net is kept in a flat state when entering a cutting area; the laser cutting device is simple in structure and convenient to operate, waste products caused by uneven materials are avoided, the qualified rate of products is increased, the production cost is reduced, the positions of the connecting moving block and the laser cutting head can be independently and finely adjusted through the vertical fine adjustment threaded column and the transverse fine adjustment threaded column, and the accuracy of the cutting size and the quality and applicability of the products are improved.

The present invention provides a method for recovering building ceramic raw materials from lepidolite beneficiation tailings. The method comprises: preparing a prefabricated slurry; stirring the prefabricated slurry and then settling and desludging the prefabricated slurry to obtain ecological ceramic raw materials and pre-selected slurry; placing the pre-selected slurry, sodium hydroxide, water glass, and sodium hexametaphosphate into a roughing flotation cell, and adding a collector and a frother for roughing to obtain roughing tailings; adding a collector for a first cleaning to obtain a first cleaned tailing; adding a collector for a second cleaning to obtain a second cleaned tailing and building ceramic raw materials; placing the roughing tailings, the first cleaned tailings, and the second cleaned tailings into a scavenging flotation cell, and then adding water glass and sodium hexametaphosphate for scavenging to obtain lepidolite concentrate and scavenged tailings; and returning the scavenged tailings to the roughing flotation cell for a cyclic flotation operation. The present invention employs a "one roughing, two cleaning, one scavenging" flotation process, which is simple, generates no waste, and has excellent environmental value.

The invention discloses a fluorine-containing silicon slag resource utilization method, and relates to the field of fluorine-containing silicon slag resource utilization. The method comprises the following steps: washing fluorine-containing silicon slag, and filtering to obtain crude silicon dioxide; adding excessive crude silicon dioxide into the ammonium bifluoride solution, stirring and dissolving, and filtering after reaction to obtain first filtrate; mixing and stirring part of the first filtrate with first ammonia water, and aging to obtain silicon dioxide gel seed crystals; mixing and stirring the silicon dioxide gel seed crystal and the remaining first filtrate, adding second ammonia water under the stirring condition, continuously stirring for ammonolysis reaction until crystallization is completed, and filtering to obtain a silicon dioxide filter cake and second filtrate; the fluorine-containing silicon slag is used as a raw material in the whole process route, and the raw material source is wide; the white carbon black product is synthesized by preparing the seed crystal, so that the product quality is high; the reaction conditions are mild, the raw materials are recycled, the comprehensive utilization degree is high, and no secondary waste is generated.

The invention provides an unmanned production line and method for waste recycling production, and the unmanned production line comprises a waste paper packaging production line for recycling different types of waste paper, and the waste paper packaging production line is connected with a waste fabric recycling and packaging production line through a first communication conveying line and a second communication conveying line; the waste fabric recycling and packaging production line is used for recycling different types of waste fabrics; the production line further comprises a PET breaking production line used for recycling PET bottles, the PET breaking production line comprises a PET bottle sorting production line used for sorting the PET bottles, and the PET bottle sorting production line is connected with the PET bottle breaking and packaging production line. The AGV trolley is used for automatically transporting materials among different production lines, and the AGV trolley is in communication connection with the central control system and dispatches and monitors the AGV trolley. According to the production line, intelligent waste production work is completed by means of the AGV intelligent carrying robot.

The invention discloses a city household garbage yield day-by-day prediction method fusing communication big data, and belongs to the technical field of environmental engineering. According to the method, the problems that the existing municipal solid waste yield cannot be predicted day by day and the prediction accuracy is poor are solved. The method comprises the following steps: firstly, collecting historical monthly household garbage clearance total amount data and corresponding daily scale communication data of a city to be predicted; constructing a population weight decomposition model, and mapping the monthly scale garbage quantity to the daily scale by using the decomposition model; obtaining a corresponding garbage quantity sequence; based on the anonymous communication data of the to-be-predicted city operator, constructing a daily-scale multi-dimensional population feature vector of the to-be-predicted city; constructing a sample set by using the multi-dimensional population feature vector and the daily scale garbage yield sequence; based on an integrated learning framework of gradient lifting, establishing a machine learning regression model of a symmetric tree structure, and training the machine learning regression model; obtaining a prediction model; and predicting the daily garbage yield by using the prediction model. The method is used for regional garbage yield prediction.

The invention discloses application of converting red mud and slag into planting soil based on fulvic acid as a conditioner, and mainly relates to the technical field of soil conditioning materials. Compared with the prior art, the conditioner has the advantages that the improvement technology of the conditioner on the red mud solid waste is simple, the operability is high, the technology is stable, special products do not need to be additionally developed, the application range is wide, and the conditioner can meet the red mud treatment requirements of different scenes. According to the invention, the conditioning effect is realized with a low addition amount of 2-10%, the material consumption is greatly reduced, the red mud treatment cost is reduced, the enterprise operation cost is doubly compressed, and the cost performance of investment is improved, the improved red mud can reach the Grade 6 standard in the cultivated land quality grade (GB / T33469-2016), the resource utilization is realized, and the red mud solid waste has new economic value.

The utility model discloses a laser cutting device. According to the laser cutting device, an adsorption assembly is located above a conveying assembly, a gap is formed between the adsorption assembly and the conveying assembly, an area used for containing materials is formed between a rotating roller assembly and the conveying assembly, the adsorption assembly is used for adsorbing the materials, the materials move along the area, and a laser emitting module is located on one side of the conveying assembly. And laser beams generated by the laser emitting module penetrate through the gap to act on the materials so as to cut the materials, and the conveying assembly is used for conveying waste generated after the materials are cut. According to the laser cutting device, it can be ensured that laser beams accurately penetrate through the gap between the adsorption assembly and the conveying assembly and directly act on materials, accurate and efficient cutting is achieved, the slitting function is completed while cutting is conducted, cutting waste materials are reduced, the conveying assembly is used for conveying the waste materials after cutting, and the cutting efficiency is improved. Production efficiency reduction caused by waste accumulation is avoided, and continuity and stability of cutting operation are guaranteed.

The present application relates to the field of hazardous waste recycling and Internet of Things technology, and discloses a kind of intelligent waste oil recycling system based on multi-source sensor fusion and AI scheduling, which is composed of Internet of Things intelligent recycling terminal deployed in waste production site, cloud AI scheduling platform responsible for data processing and intelligent decision-making and mobile terminal execution subsystem supporting field operation.The present application enables stores to save labor hours and improve labor efficiency every month and every operating personnel without manual liquid level inspection, phone call collection and manual report of joint order.The average daily coverage rate of single vehicle is increased by 4 times through AI scheduling, transportation response time is shortened, electronic joint order is automatically generated and reported, the report rate is increased from less than 30% of the industry average to 100%, there is no environmental protection penalty record, and the store space occupation and communication cost are reduced.The procurement cost of detection equipment is lower than that of similar products in the market.In addition, the system automatically calculates carbon reduction data, the annual carbon reduction amount of single store is high, and the carbon emission reduction effect is significant.

The application discloses a method for high-selectivity recovery of beryllium from lithium smelting beryllium-containing clinker, and belongs to the technical field of beryllium-containing solid waste resource utilization. After the lithium smelting beryllium-containing clinker is crushed, slurry is prepared, and under the shearing action, concentrated acid is slowly added dropwise to the slurry to precisely control the pH of the slurry in the range of 3.0-3.5 to perform reaction. After the reaction is completed, solid-liquid separation is performed to obtain beryllium-containing filtrate. The beryllium-containing filtrate is subjected to precipitation by using a sodium hydroxide solution to precisely control the end-point pH of the beryllium-containing filtrate in the range of 8.5-9.0, and a composite precipitate containing beryllium hydroxide and potassium sodium cryolite is obtained. The method completely breaks the traditional situation of 'waste production waste', not only realizes efficient separation of the highly toxic beryllium, but also directly converts the beryllium-containing solid waste into 'rich beryllium potassium sodium cryolite composite concentrate' with a main phase of crystalline potassium sodium cryolite and a beryllium grade of more than 5.5%, realizing double high-value extraction of trace metals (beryllium) and bulk minerals (cryolite).

The invention relates to a new energy automobile standard accessory multi-cavity forming mold which comprises an upper mold panel, an upper mold base, a lower mold base, a supporting base and a lower mold bottom plate which are sequentially connected from top to bottom, a pouring cup is arranged in the center of the top of the upper mold panel, a hot runner connected with the pouring cup is embedded in the contact face of the upper mold base and the upper mold panel, and a heating mechanism is arranged in the hot runner. And a product residual material preventing mechanism matched with the cavity is arranged in the upper die panel. The core problems of many residues, uneven filling, low efficiency and the like in multi-cavity injection molding are solved, efficient, high-precision and low-waste production of the automobile door lining buckle is achieved, the manufacturing cost is remarkably reduced, and the mold is particularly suitable for the large-scale mass production requirement of small precise accessories of new energy automobiles.

The invention discloses an electric regeneration adsorption desalting device and method for a zirconium phosphate adsorption material, a carbon-supported hybrid zirconium phosphate material and application, and belongs to the technical field of water treatment. The technical problems to be solved are that existing ion exchange resin such as zirconium phosphate adsorption materials is complex in regeneration, large in size, high in price and high in waste yield, newly introduced sodium ions are not beneficial to drinking, and the like. According to the technical scheme, the electro-regeneration adsorption desalting device is characterized by comprising an electrolytic bath, a hollow cylindrical anode, a central anode and a cathode, wherein the hollow cylindrical anode, the central anode and the cathode are positioned in the electrolytic bath; wherein the zirconium phosphate adsorption material to be treated is compounded in the carbon rod to serve as an anode, and the electrolyte in the electrolytic bath is water.

The utility model discloses a road inspection well periphery reinforcing structure in the technical field of inspection well construction, which is characterized in that the well periphery reinforcing structure is divided into two parts in the vertical direction, and the height of the top surface of a shaft is controlled, so that the top surface of the shaft and the top surface of a lower reinforcing ring are positioned on the same plane with the top surface of a lower base layer; in this way, the lower reinforcing ring and the shaft cannot interfere with paving and rolling of the lower base layer, the top face of the upper reinforcing ring and the top face of the upper base layer are located on the same plane, in other words, the upper reinforcing ring cannot interfere with paving and rolling of the upper base layer after being installed, and the rolling effect of the upper base layer and the lower base layer can be guaranteed; and meanwhile, construction of the well periphery reinforcing structure and construction of the road structure layer are completely fused, the subsequent excavation process is omitted, procedures are saved, the construction progress is accelerated, meanwhile, waste is reduced, and the whole construction process is more environmentally friendly while the cost is saved.

The utility model discloses a kind of composite mould for ceramic cup forming, belong to clay forming mould field, including coaxial sleeve's outer structural layer and inner structural layer, outer structural layer at least one end is open structure, inner structural layer one end is closed, the other end is open structure, the inside of the one end of inner structural layer is formed into mould cavity, the strength of outer structural layer is higher than the strength of inner structural layer. Form composite mould by outer structural layer and inner structural layer, realize the complementation on performance, outer structural layer is two-end open structure, when inner structural layer wears and cracks, can be directly broken and taken out by the two ends of open inner structural layer, reshape inner structural layer in outer structural layer inner wall, reduce waste production, reduce material cost.

The invention belongs to the technical field of waste preparation, and particularly relates to a straw biological fermentation pretreatment device which comprises a supporting frame and a lap joint bedplate fixedly mounted on the bottom surface of one side of the supporting frame, and a straw transportation sleeve shell is fixedly connected to the top end of the supporting frame; the fourth motors are symmetrically and fixedly installed on the surfaces of the two sides of the straw conveying sleeve shell, the first motors are symmetrically and fixedly installed on the inner side wall face of the supporting frame, and staggered crushing units are arranged on the surfaces of the outer sides of the first motors. Straw is put into an inlet of a straw conveying sleeve shell, a pair of rotating clamping teeth is matched with a motor to rotate, extrusion crushing teeth on the outer side surfaces of the rotating clamping teeth are matched to be clamped into concave extrusion grooves in the outer side surface of the other partition plate, and the straw is crushed by means of staggered extrusion generated when the extrusion crushing teeth are clamped into the concave extrusion grooves. The straw is folded in half, the straw is broken into two sections, and the broken straw can be clamped in a gap between the extrusion crushing teeth and the sunken extrusion groove.