45 results about "Biomass briquettes" patented technology

The utility model discloses a furnace front cantilever feeding front shaft split structure which comprises a running track, cantilever feeding devices are movably arranged on the running track, the cantilever feeding devices are symmetrically arranged on the two sides of a containing bin, the cantilever feeding devices and the containing bin are arranged in a split mode, screw shafts are arranged in the cantilever feeding devices, and the screw shafts are arranged on the two sides of the containing bin. The discharging side of the spiral shaft extends into the containing bin, the suspended wall feeding device is divided into two sections, the front end is a driving device containing space, the rear end is a spiral shaft containing space and is used for conveying materials, the spiral shaft in the suspended wall feeding device is designed in an inclined mode, and the spiral shaft adds biomass briquette fuel into the conveyor from the upper portion; and under the pushing of the spiral blade, the material moves downwards along the inclination angle of the spiral shaft and is conveyed to the accommodating bin. According to the suspended wall feeding device, the spiral shaft in the suspended wall feeding device is designed in an inclined mode, fuel can naturally fall down in the direction of a hearth, the material accumulation condition is reduced, a trapezoidal material blocking structure is designed in the suspended wall feeding device, and clustered materials are prevented from rotating around the spiral shaft in situ.

The utility model discloses a biomass forming system and a solid waste gasification melting treatment system. The forming system comprises a stock bin, a briquetting device, a circular mold mechanism and a frame body, the circular mold mechanism comprises a plurality of forming modules and triangular fixing blocks distributed between the adjacent forming modules at intervals. A driving motor is arranged in the frame body; the forming module is a variable cross-section through hole and is formed by splicing symmetrically arranged half-wedge-shaped grooves; the large-section end of the forming module is a feeding hole, and the small-section end of the forming module is a discharging hole. The sectional area of the discharging hole is smaller than that of the feeding hole. The treatment system comprises the biomass forming system, a drying system, a sealed feeding system, a gasification melting system and a combustion system. According to the utility model, the high-strength biomass briquette is obtained and is used for a solid waste gasification and melting treatment system to meet the requirements of a gasification and melting furnace.

The biomass briquette and small square bale mixed reverse fire and reverse layer-by-layer combustion device belongs to the field of boiler combustion systems. The present invention includes a hot water suction pipe, a makeup water heating pipe, a left furnace body, a middle furnace body, and a right furnace body. The left furnace body, the middle furnace body, and the right furnace body are connected and installed from left to right. The hot water suction pipe is installed in a circulating manner inside the left furnace body, the middle furnace body, and the right furnace body. The hot water suction pipe is connected to the makeup water heating pipe. A biomass briquette feed inlet and a biomass small square bale feed inlet are respectively arranged on the outer sides of the left furnace body and the right furnace body. The inside of the middle furnace body is the main combustion chamber. The research and development purpose of the present invention is to solve the problems that the biomass energy fuel of traditional biomass boilers is single, the use method is not flexible enough, and it is impossible to make reasonable planning and adjustment according to the actual situation. A makeup water heating pipe is installed inside the middle furnace body, and the makeup water heating pipe is connected and installed with the external boiler heating return water. The structure of the present invention is simple and ingenious, and it is suitable for popularization and use.

The invention provides a process and equipment for preparing biomass briquette from municipal solid waste. The invention relates to a process for preparing biomass briquette coal from municipal solid waste. The process comprises the following steps: S1, pretreating waste impurities; s2, drying and modifying; s3, crushing and mixing; s4, molding and pressing; s5, curing and curing; and S6, finished product detection and packaging. According to the technology for preparing the biomass briquette from the municipal solid waste, non-combustible impurities in the waste are precisely removed through pretreatment, the bonding performance and combustion performance of materials are improved through modification treatment, the forming and curing technology is precisely regulated and controlled, and the biomass briquette is prepared. The prepared biomass briquette is high in strength, stable in calorific value, high in combustion efficiency and low in pollutant emission, biomass components in household garbage are converted into clean renewable energy sources, environmental pollution caused by garbage landfill and incineration is effectively reduced, the resource utilization rate of waste is increased, the pressure of fossil fuel shortage is relieved, and environmental protection is achieved. And the method has remarkable environmental benefits and social benefits.

The present application relates to biomass briquetting pellet forming equipment technical field, specifically relates to a kind of motor built-in briquetting machine;It contains machine body support seat, drive assembly is arranged in machine body support seat, and drive structure top is connected with briquetting assembly, the outside of briquetting assembly is equipped with rotary discharge structure, the drive structure contains the channel vertically opened in machine body support seat, main shaft is arranged in channel, and the upper and lower ends of main shaft are respectively installed in machine body support seat by bearing, multiple stators are installed on the inner wall of channel, rotor is installed on main shaft, rotor and stator are identical in height and oppositely arranged, and main shaft is drivingly connected to the briquetting assembly;The stator and rotor part of the present application are reasonably designed to form motor structure inside equipment, so as to reduce the volume of equipment, the machine body support seat of the present application is hollow design, equipment is integrally operated after installation, without speed reducer and excessive transmission structure, power loss is greatly reduced, equipment efficiency is improved and failure occurrence is reduced.

The utility model provides a biomass briquette fuel cooking stove suitable for a plateau area, and relates to the technical field of cookers. The cooking furnace comprises a furnace body, a fire grate and an air supply system. The furnace body comprises a primary combustion chamber and a secondary combustion chamber which are communicated with each other; the second-stage combustion chamber is relatively positioned above the first-stage combustion chamber; the first-stage combustion chamber is used for combusting fixed carbon in biomass briquette fuel, and the second-stage combustion chamber is used for combusting volatile components in the biomass briquette fuel. The fire grate is arranged in the first-stage combustion chamber and used for containing biomass briquette fuel. And the mounting height of the fire grate in the primary combustion chamber is adjustable. The air supply system communicates with the first-stage combustion chamber and the second-stage combustion chamber, the combustion efficiency is high, and the device is suitable for plateau areas with the low oxygen content in air.

The utility model relates to the technical field of biomass gasification furnaces, and discloses a biomass briquette gasification furnace which comprises a biomass gasification furnace main body, a steel wire mesh movably mounted at the bottom inside the biomass gasification furnace main body, a motor fixedly mounted inside the bottom of one side of the biomass gasification furnace main body, and a turntable fixedly mounted at the output end of the motor, a fixing block is fixedly installed on one side of the bottom of the steel wire mesh. Raw materials are placed at the top of the steel wire mesh for combustion, and when a large amount of raw material ash is generated at the top of the combustion and stacking of the raw materials, the output end of the motor drives the rotating disc to rotate, so that the connecting block reciprocates up and down at the bottom of the fixing block, and the steel wire mesh is driven to vibrate to enable the raw material ash on the surfaces of the raw materials to fall off; and the situation that the production efficiency of the gasification furnace is reduced due to the fact that a large amount of raw material ash is generated on the surfaces of the stacked raw materials after long-time combustion and the raw materials stacked inside are difficult to burn completely is avoided.

The application discloses a kind of biomass briquette fuel dynamic combustion characteristic experiment table, including flue gas collection tank, modular combustor, electronic scale and flue gas emission assembly, the flue gas collection tank includes tank and the chimney at the top of the tank, the modular combustor, the electronic scale are located in the tank, the modular combustor is located above the electronic scale, the chimney is provided with flue gas analyzer, the flue gas emission assembly includes gas collection cover, with gas collection cover Exhaust duct and setting on exhaust duct on air induction fan, the gas collection cover is located in the top outlet of the chimney directly above, the exhaust duct is provided with micro pressure difference meter, PM2.5 monitor.The present application is used to study biomass combustor air staging combustion theory, under the action of multiple air, biomass particle combustion dynamic combustion and pollutant emission.

The invention discloses a two-stage biomass gasification system and a two-stage biomass gasification method, and belongs to the technical field of biomass treatment equipment.The two-stage biomass gasification system comprises a gasification furnace, a feeding device and a pressurized feeding device; the feeding device is hermetically connected and communicated with the gasification furnace, the feeding device is obliquely arranged in the horizontal direction, and the feeding end of the feeding device is higher than the discharging end of the feeding device; and the pressurizing feeding device is hermetically connected and communicated with the feeding device. According to the two-section type biomass gasification system, through the feeding device and the pressurizing feeding device which are obliquely arranged, large-granularity biomass briquetting materials can be allowed to flow forwards in an auxiliary mode under the action of the gravity and the pressure difference of the biomass briquetting materials, the possibility that the biomass briquetting materials are blocked is reduced, the two-section type biomass gasification system can be allowed to treat the biomass briquetting materials, and the biomass briquetting materials are prevented from being blocked. Therefore, the processing technology of the two-stage biomass gasification system is simplified.

The invention relates to the technical field of biomass briquette combustion, and discloses a continuously-operating biomass briquette gasification combustor which comprises a bottom plate, the outer wall of the bottom plate is fixedly connected with a feeding seat, the inner wall of the bottom plate is fixedly connected with a first connecting ring, the inner wall of the first connecting ring is fixedly connected with a second connecting ring, and the inner wall of the second connecting ring is fixedly connected with the feeding seat. A first hollow column is fixedly connected to the top of the second connecting ring, a circular plate is fixedly connected to the outer wall of the first hollow column, a connecting annular groove is formed in the outer wall of the circular plate, and an auxiliary mechanism is rotationally connected to the inner wall of the connecting annular groove through a bearing. Fuel particles can be effectively prevented from being retained on the surface layer of a combustion area, the fuel particles are promoted to move downwards in order, the residual risk of the particles in a single combustion area is reduced, the problem that the combustion efficiency and the service life of equipment are affected due to long-term retention and adhesion of the particles is solved, and the running continuity and reliability of the combustor are improved.

The utility model discloses a kind of biomass briquetting prevents crack processing equipment, including processing cylinder, the inner wall of the processing cylinder is fixedly connected with mounting plate, the inner wall of the mounting plate is fixedly connected with discharging cylinder, the lower surface of the mounting plate is fixedly connected with protection cylinder, the upper surface of the mounting plate is fixedly connected with motor, the output of the motor is fixedly connected with driving shaft.The utility model driving shaft drives driving wheel to rotate, simultaneously drive screw feeding roller to rotate, gear drives inner tooth ring to rotate, inner tooth ring drives first stirring shaft to rotate, second stirring shaft and first stirring shaft opposite reverse to the biomass in processing cylinder are stirred, screw feeding roller is conveyed upwards to the biomass at the bottom of processing cylinder by the rotation of screw feeding roller when rotating, and is discharged by multiple discharge holes, realize the mixing operation of upper and lower biomass, can make biomass raw material mixing more uniform, prevent subsequent crack.

The invention provides a biomass continuous segmentation baking furnace which comprises a feeding mechanism, a reaction furnace body and a discharging mechanism, and the feeding mechanism is used for feeding biomass raw materials; the reaction furnace body is communicated with an outlet of the feeding mechanism, the reaction furnace body at least comprises a first-section reaction furnace body and a second-section reaction furnace body, each section of reaction furnace body is provided with at least one hot carrier gas inlet mechanism in the height direction of the reaction furnace body, and different hot carrier gas inlet mechanisms are used for inputting hot carrier gas with the same or different temperatures and flows into the reaction furnace body; the reaction furnace body has different temperature fields along the height direction of the reaction furnace body; and the discharging mechanism is communicated with the outlet of the reaction furnace body and is used for receiving the biomass briquette fuel reacted in the reaction furnace body and discharging the biomass briquette fuel. The continuous segmented biomass baking furnace not only can adapt to various different biomass raw materials, but also can be accurately matched with a biomass pyrolysis stage, the tar yield is reduced, and the reaction efficiency and the product quality are improved.

The invention provides a system for blending combustion of biomass briquette fuel in a thermal power plant and a control method, the system comprises independent transportation, sampling, storage and conveying modules of biomass and coal, fuel types are automatically distinguished through an identification device above a coal conveying belt, and the fuel types are respectively conveyed to a biomass sub-bin or a raw coal sub-bin. The coal mill switches fuel sources according to unit loads, biomass is combusted in the low load, coal is switched in the high load, the air temperature and the air-coal ratio are adjusted through a primary air valve, and the combustion efficiency is optimized. The control method comprises fuel identification, metering bin separation, load self-adaptive switching and air temperature cooperative adjustment, it is ensured that the mass of biomass entering the furnace is accurately metered, and meanwhile the investment cost is reduced through existing equipment of a power plant. The system solves the problems of inaccurate metering and inflexible switching in biomass blending combustion, has economical efficiency and environmental protection benefits, and is suitable for peak regulation and low-carbon transformation of a thermal power plant.

A traditional Chinese medicine biomass drying hot air boiler belongs to the technical field of heat supply equipment and comprises a material box, a transmission device, a main combustion chamber and an air outlet, the material box is connected with the main combustion chamber through the transmission device, the upper portion of the main combustion chamber is connected with the air outlet through a heat exchange smoke pipe, and an axial flow fan and an induced draft fan are arranged on the heat exchange smoke pipe. And the axial flow fan is arranged at the reserved position of the axial flow fan. According to the utility model, remote intelligent control can be realized, the operation condition of the system can be displayed in real time, the condition of the traditional Chinese medicinal materials in the drying process can be accurately mastered and controlled, feeding, ignition, deslagging, temperature control, dehumidification and the like are all automatically operated, long-time continuous combustion can be realized, and meanwhile, the drying equipment adopts renewable energy sources and biomass forming granular fuel, so that zero carbon emission is achieved, and the environment is protected. The equipment meets the requirements of agricultural modernization, has remarkable effects in the aspects of improving the energy utilization efficiency, protecting the environment, promoting agricultural production modernization and the like, and has a wider application prospect along with continuous innovation and progress of the technology.

The invention relates to the technical field of biomass energy processing, and discloses a biomass briquetting production automatic control system and method.The biomass briquetting production automatic control system comprises a screening module, a smashing module, a drying module and a pressing module; the screening module intermittently delivers biomass with specified weight into the crushing module; the drying module comprises a hot air unit, a weighing unit, a sampling total water content calculation unit and a processing unit; the processing unit is used for estimating the current water content proportion of the current batch of biomass according to the output data of the weighing unit and the sampling water content total calculation unit; and when the current water content ratio reaches a specified value in a specified threshold range, conveying the current batch of biomass to a pressing module for briquetting and pressing. And data support is provided for subsequent accurate drying control, and raw material waste and energy loss caused by improper moisture control are reduced.

The present application relates to the technical field of biomass energy, and specifically discloses a preparation method of high-performance biomass briquetting fuel based on steam explosion pretreatment of rice hull and addition of pine wood. The method uses agricultural waste rice hull as the main raw material, realizes efficient removal of hemicellulose and high retention of cellulose and lignin through steam explosion pretreatment, combines particle size optimization, and verifies the natural bonding effect of free sugar on the surface of the residue through water washing, and adds pine wood as a reinforcing agent to significantly improve the comprehensive performance of the briquetting fuel. The present application solves the core problems of low mechanical strength, high water absorption and poor storage stability of existing rice hull fuel, has low process cost and no chemical pollution, is suitable for industrialization, and provides an effective path for realizing high-value utilization of agricultural waste and the carbon neutralization goal.

A downward mobile gasification boiler for surface gas-phase combustion and pyrolysis of biomass briquette is provided. The boiler includes a gasification combustion chamber, a gas combustion chamber, a stranding cage slag remover, a heat exchanger, a water jacket, an air duct and an air distribution system. The air duct connected with the air distribution system is arranged in the inner cavity of the wall surface of the gasification combustion chamber. The gas combustion chamber is arranged at the upper part of the gasification combustion chamber, and an air outlet is arranged in the middle to communicate the gas combustion chamber with the gasification combustion chamber. The lower part of a port of the gasification combustion chamber is provided with a twisting cage slag remover.

The utility model discloses a biomass briquette fuel drying forming machine with a crushing function, and relates to the technical field of biomass fuel processing. The device comprises a drying box, the top of the drying box is fixedly connected with a crusher, and a discharge port at the bottom of the crusher is communicated with a feed port at the top of the drying box. According to the biomass fuel drying device, the rotating shaft is driven by the driving motor to rotate together with the turning blades, smashed biomass fuel in the biomass fuel drying cylinder can be turned through the turning blades, the biomass fuel can make full contact with hot air, and therefore the drying forming efficiency of the biomass fuel can be improved, and the biomass fuel can be dried by opening a sealing cover. And an electric push rod is driven to drive a push block to move backwards, so that an arc-shaped blocking mesh plate can be turned over downwards around a hinge shaft to be opened, at the moment, dried and formed biomass fuel can fall on a guide hopper from a discharge window in the lower portion of the biomass fuel drying cylinder and slide to a discharge nozzle along the guide hopper to be automatically discharged, and personnel can conveniently collect the biomass fuel.

The utility model discloses a biomass compact forming fuel mixing device which comprises a machine frame, the top end of the machine frame is fixedly connected with a processing box, a connecting pipe penetrates through the lower surface of the processing box, the outer surface of the connecting pipe is fixedly connected with a first supporting rod, the end of the first supporting rod is fixedly connected with a stirring mechanism, and the stirring mechanism is fixedly connected with a second supporting rod. The stirring mechanism comprises a guide frame, the guide frame is fixedly connected to the end of the first supporting rod, a motor is fixedly connected to the inner wall of the guide frame, a rotating rod is installed at the output end of the motor through a coupler, and an extrusion block is fixedly connected to the top end of the rotating rod. A grinding mechanism is fixedly connected to the bottom surface of an inner cavity of the treatment box, the grinding mechanism comprises a fixing frame, the fixing frame is fixedly connected to the bottom surface of the inner cavity of the treatment box, and a grinding frame is fixedly connected to the upper surface of the fixing frame. The biomass compact forming fuel mixing device disclosed by the utility model has the effects of grinding and mixing blocky fuel.

The invention belongs to the technical field of biomass energy utilization and solid waste resourceful treatment, and particularly relates to a method for preparing biomass briquette through co-pyrolysis of biomass and waste plastics. The method comprises the following steps: (1) raw material pretreatment: respectively drying biomass and waste plastics until the moisture content is lower than 8%, and respectively grinding; (2) hot press molding: uniformly mixing the pretreated biomass and waste plastics according to a mass ratio of (1-5): 1, and then carrying out hot press molding to form a pressed blank; wherein in the hot press forming process, the pressurization pressure ranges from 4.8 MPa to 5.2 MPa, the hot press temperature ranges from 80 DEG C to 100 DEG C, and the pressure maintaining time ranges from 10 min to 30 min; and (3) pyrolysis: heating the compact obtained in the step (2) to 600-800 DEG C at a heating rate of 5-15 DEG C / min in an inert gas atmosphere, carrying out pyrolysis, continuously introducing inert gas in the pyrolysis process, and cooling to obtain the biomass briquette.

The utility model relates to the technical field of screening devices, and discloses an efficient screening device for biomass briquette fuel production, which comprises a support, a supporting block is fixedly mounted on the inner wall of the support, a reset spring is fixedly mounted on the upper surface of the supporting block, and the reset spring is fixedly mounted on the inner wall of the support. The ends, away from the supporting blocks, of the reset springs are fixedly connected with a screen plate, and a vibration motor is fixedly installed on the side wall of the screen plate. According to the efficient screening device for biomass briquette fuel production, a vibration motor is started to drive a screen plate to vibrate, elastic telescopic rods on the side wall of the screen plate extrude rolling wheels on mounting blocks to make contact with the inner wall of a movable groove, the screen plate stably moves, and then balls arranged on the side walls of the mounting blocks make contact with the other side wall of the movable groove; and the round balls rotate in the sleeves, the sleeves extrude the telescopic springs, then the stability of the side edges of the mounting blocks is guaranteed, and the screening plates conduct screening stably.

The invention relates to the technical field of biomass gasification power generation, and particularly discloses a distributed biomass pretreatment factory green low-carbon off-grid power supply method, which comprises the following steps of: gasifying biomass briquettes or particles produced by a biomass pretreatment factory through a biomass gasification furnace to generate crude synthesis gas; tar, dust and the like in the crude synthesis gas are removed through a downstream purification device, the purified synthesis gas is sent to an internal combustion engine generator for power generation, power is supplied to equipment in a biomass pretreatment factory after power generation, tail gas of the internal combustion engine generator is connected to a waste heat boiler, and generated steam is used for driving the equipment in the biomass pretreatment factory. And the biomass pretreatment plant is completely not connected with the commercial power grid, so that off-grid green low-carbon power supply of the biomass pretreatment plant is realized.

The application relates to the field of biomass briquette production, and particularly discloses a biomass briquette production method.A biomass briquette production method comprises the following steps: (1) drying and crushing biomass raw materials, and then performing rapid pyrolysis treatment in an oxygen-limited environment, and then modifying by high-pressure steam explosion; (2) mixing the modified biomass with activated coal powder, a composite binder and a combustion improver in a specific proportion, wherein the coal powder is activated by light tar and wood vinegar; (3) adopting a gradient hot-pressing forming process to realize densification forming through multi-stage temperature-pressure control; and (4) finally obtaining a finished product through low-temperature curing.The briquette prepared by the application has good strength and combustion efficiency.

The invention belongs to the technical field of briquette fuel production, and provides a municipal sludge-biomass briquette fuel production system and method.A first gas-solid separation device is arranged on a first carbonization device, and a second gas-solid separation device is arranged on a second carbonization device; a pyrolysis oil-gas outlet of the first gas-solid separation device and a pyrolysis oil-gas outlet of the second gas-solid separation device are both connected with the pyrolysis oil-gas combustion furnace and provide oil-gas fuel for the pyrolysis oil-gas combustion furnace; a flue gas outlet connected with the pyrolysis oil gas combustion furnace is respectively connected with the first carbonization device and the second carbonization device to provide heat energy for municipal sludge carbonization and biomass pyrolysis carbonization; high-temperature hot flue gas formed by combustion of oil gas generated by pyrolysis of sludge and biomass is used for providing heat energy for the carbonization process of the sludge and the biomass, cyclic and efficient utilization of energy in the system is achieved, dependence on external energy is remarkably reduced, the fuel cost and operation energy consumption are reduced, the system integration degree is high, and energy conservation and emission reduction are achieved. And the coupling degree of energy flow and material flow is high.

The invention discloses a production process for preparing biomass particles by drying and extruding furfural residues at low temperature, and belongs to the technical field of biomass briquette fuel preparation. The process comprises the following steps: providing furfural residue with the initial water content of 50-60% and a coking polymer generated in furfural production; an indirect heat exchange type roller dryer is adopted for low-temperature steam drying, the heat exchange surface temperature is made to be 90-100 DEG C, air inducing and dehumidification are matched, the moisture content of discharged furfural residues is controlled to be 15-20%, and condensate water is recycled; crushing a coking polymer to be not greater than 50 meshes, and mixing the coking polymer with the dried furfural residues according to the ratio of (2-5): (95-98); carrying out winnowing and cyclone separation grading ash removal, outputting a main material of more than 50 meshes, and removing fine powder of less than 50 meshes and entrained ash; 0.5-5wt% of a mineral functional agent is doped into the main material and is uniformly mixed. According to the process, stable water control, graded ash removal, low-temperature forming interlocking stability, mineral internal and external synergistic slagging resistance and hydrophobic moisture-proof pulverization resistance are achieved, and the quality and storage and transportation stability of the granular fuel are improved.

The utility model discloses an efficient hot water boiler combusting biomass briquette, and relates to the technical field of biomass boilers. The utility model relates to a biomass fuel boiler, in particular to a biomass fuel boiler, and aims to solve the problems of low combustion efficiency caused by fuel accumulation and incapability of realizing continuous and stable feeding in the fuel combustion process of the conventional biomass fuel boiler, and low boiler heat efficiency caused by the fact that high-temperature flue gas passing through a hearth is not effectively and fully utilized. The boiler comprises a transmission device (1), an inclined pushing reciprocating grate (2), a hopper (3), a hearth (4), an upper boiler barrel (5), a lower boiler barrel (6), a convection bank (7), a connecting flue (8), an air preheater (9), a primary air system (10) and a secondary air system (11), and the output end of the transmission device (1) is connected with the inclined pushing reciprocating grate (2) and drives the inclined pushing reciprocating grate (2) to feed materials back and forth in a reciprocating mode. The utility model is used in the boiler industry.

The present invention relates to a system (100) and a process for steam / hot water generation by utilizing thermal energy from flue gases generated by waste incineration. The system (100) includes a muffle furnace (105), a waste heat recovery unit (WHRU) (110), a wet scrubber (115 a), an absorber system (115 b), a chimney (120), a venturi (125) and an ash chamber (130). The muffle furnace (105) includes an incinerator chamber for pharmaceutical waste combustion (105 a), biomass briquette combustion chamber (105 b) and a four-pass holding chamber (105 c) having four passes (105 cl), (105 c2), (105 c3) and (105 c4). The system enables saving fuel and utilizes high calorific pharmaceutical waste.

The utility model discloses a conveying device for biomass particle briquetting, which belongs to the technical field of biomass briquetting processing and comprises a conveying belt body, a receiving hopper is arranged right above the conveying belt body, discharge opening grooves are arranged on two sides of the outer wall of the receiving hopper, and a blanking mechanism is arranged in each discharge opening groove. By designing a driving scraper type feeding structure and configuring two discharging opening grooves, when the driving motor drives the material distributing rotating disc, the material stirring shafts on the two sides are driven to rotate through the transmission belt, the first belt wheel and the second belt wheel at the same time, and the material stirring blades are driven to rotate; and biomass briquettes falling from the material distribution rotating disc are efficiently scraped into the discharging hopper and then are sent out through the conveying belt body at the bottom, so that the feeding efficiency of the briquettes is greatly improved, and blockage is avoided.

The utility model discloses a briquetting device for biomass particle production, which comprises a biomass briquetting machine body, a crushing mechanism, a feeding pipe and a blanking plate are arranged on the biomass briquetting machine body, the feeding pipe is fixedly communicated with the top of the crushing mechanism, the top of the feeding pipe is fixedly communicated with a blanking hopper, and the blanking plate is fixedly communicated with the crushing mechanism. The outer surface of the discharging hopper is fixedly connected with an annular pipe. Through the arrangement of the biomass briquetting machine body, the dust suction nozzle, the fan, the partition plate I, the filter plate and the like, dust generated when biomass particles are added and dust generated when the biomass particles are crushed can be sucked and collected, so that the dust is prevented from diffusing to pollute the working environment and being sucked by workers to influence the health of the workers; and meanwhile, the collected dust can be conveyed into the biomass briquetting machine body again, waste of the collected dust can be avoided, workers do not need to clean and discharge the collected dust subsequently, the labor amount of the workers is reduced, and then the practicability of the device is improved.

The invention relates to the field of biomass fuel preparation, in particular to modified biomass fuel and a preparation method thereof. The biomass fuel provided by the invention is prepared by carrying out in-situ modification on a biomass base material through a specific composite additive; the composite additive is composed of small organic molecules containing phosphate groups and carboxylic acid groups and Ca / Mg / Fe alkaline earth metal salt, the small organic molecules and the Ca / Mg / Fe alkaline earth metal salt are subjected to an in-situ esterification reaction on the surface of biomass, a stable organic metal complex is generated, and a coating layer is formed. In the combustion process, the organic metal complex participates in ash conversion in a molecular state, potassium, sodium, silicon and other elements are inhibited from forming a low-melting-point molten phase through a solid-gas ash migration mechanism, and the technical problems that biomass briquette combustion is large in ash content and serious in slagging are solved from the source. The preparation process of the modified biomass fuel is simple and controllable, is suitable for industrial production, and can be widely applied to combustion equipment such as industrial boilers and civil stoves.