314results about "Granulation in rotating drums" patented technology

The invention relates to the technical field of yellow phosphate rock powder clustering, in particular to yellow phosphate rock powder clustering equipment which comprises a base, a support is fixedly mounted at the top of the base, and spherical rotary drums are rotatably connected to the two sides of the inner wall of the support in a penetrating mode; a storage cylinder is fixedly mounted at the top of the support, a connecting pipe is rotatably connected into the storage cylinder in a penetrating mode, a quantifying cylinder is fixedly connected to the bottom of the connecting pipe, and a discharging assembly is arranged at the bottom of the quantifying cylinder. By arranging a quantitative barrel, a first through groove, a second through groove and a discharging assembly, the quantitative barrel is rotated to enable the first through groove to be aligned with the second through groove, an adhesive enters a connecting pipe through the first through groove and the second through groove, then the adhesive enters the quantitative barrel, scale marks are arranged outside the quantitative barrel, and after the liquid level in the quantitative barrel reaches a proper value, the adhesive is discharged. The quantitative barrel is rotated to enable the first through groove and the second through groove to be staggered, and the adhesive is quantitatively discharged into the spherical rotating barrel through the discharging assembly, so that the adding amount of the adhesive is controlled, and the agglomeration quality of the yellow phosphate rock powder is improved.

The invention relates to the technical field of building material processing, in particular to a granulation processing device for a polycarboxylate superplasticizer and an assembly thereof.The granulation processing device comprises a base, first supporting plates are fixedly connected to the four corners of the top of the base, second supporting plates are fixedly connected to the inner sides of the first supporting plates, and a light barrel is fixedly connected to the inner wall of each second supporting plate; an outer gear ring is fixedly connected to the surface of the light barrel, and a cooling component is arranged on the front side of the second supporting plate. According to the invention, the efficient and uniform granulation process is realized through the innovative mechanical linkage design, the device adopts a rotary cooling and self-cleaning integrated structure, the light barrel body is driven by the motor to rotate, and meanwhile, the condensation ring reciprocates up and down along the barrel wall to form a dynamic cooling effect, so that the uniform and stable temperature of materials is ensured, and the material discharge stage is stable. Falling materials drive the impeller to rotate, the composite material cleaning ring is driven by the gear and rack mechanism to scrape the barrel wall up and down, and residual materials are effectively removed.

The utility model relates to a granulator for biological fertilizer production. The granulator comprises a base and a water spraying assembly, when materials are added into the barrel through the feeding port and then the barrel rotates for granulation and water spraying, a water conveying hose is connected with a vertical pipe, then a rotating motor drives a lead screw to rotate, a moving block moves along a sliding rod, the moving block drives an L-shaped block to move, the L-shaped block drives a water conveying pipe to move inwards, and a spraying head moves into the barrel through the feeding port; when the spray head moves to a position where water needs to be sprayed, water in the water conveying hose is sprayed to materials from the spray head through the water conveying pipe to adjust the humidity of the materials, after spraying is completed, the rotating motor rotates reversely, the lead screw rotates, the moving block drives the L-shaped block to move outwards along the sliding rod, the water conveying pipe and the spray head move outwards, and the spray head moves out of the cylinder to wait for being used when water is sprayed next time. In this way, manual operation can be replaced, the labor intensity of operators is reduced, and the working efficiency is improved accordingly.

The invention belongs to the field of visual control, and discloses a special crop fertilizer granulation method based on machine vision, which is applied to a granulation system comprising a rotary drum granulator, a raw material supply device, a steam supply device, a control device and a shooting device, and the method comprises the following steps: S1, starting the rotary drum granulator by the control device; s2, the control device controls valves of the raw material supply device and the water vapor supply device to be opened; s3, shooting the dried fertilizer particles by a shooting device to obtain a to-be-identified image; s4, the control device recognizes the to-be-recognized image, the diameter of the fertilizer particles is obtained, and the valve opening degree of the steam supply device is calculated; s5, a valve of the steam supply device is adjusted according to the valve opening degree; s6, the control device judges whether granulation stop conditions are met or not, if yes, a valve of the raw material supply device and a valve of the steam supply device are closed, and the rotary drum granulator is closed; and if not, entering S3. According to the invention, the diameter difference of fertilizer particles is smaller.

The invention discloses a preparation method of an organic silicon soil conditioner and an anti-caking treatment device. The anti-caking treatment device comprises a rack, a roller mechanism, a feeding mechanism, an anti-caking liquid spraying mechanism and an anti-caking agent spraying mechanism. The roller mechanism comprises an outer spiral plate, an inner spiral plate, a sealing plate, an annular plate, a fixed circular plate, an intermittent discharging barrel and a guide arc plate. The feeding mechanism comprises a feeding barrel, a feeding shaft, a spiral blade, a first rotation driving device and a second rotation driving device. The anti-hardening liquid is sprayed to the organic silicon soil conditioner particles through the liquid spraying head, the anti-hardening agent is sprayed to the organic silicon soil conditioner particles through the powder spraying head, and the organic silicon soil conditioner particles move in the inner spiral plate and the outer spiral plate to be discharged. Meanwhile, the anti-hardening liquid and the anti-hardening agent can be more uniformly distributed on the surfaces of organic silicon soil conditioner particles to form double-layer protection; automatic feeding and discharging, automatic anti-plate treatment and automatic discharging of the organic silicon soil conditioner particles can be achieved.

The invention discloses a production method of polymersome, and belongs to the technical field of polymersome production. The method comprises the following steps: directly introducing a poly-linked material obtained by reacting di-tert-butyl peroxide and diisopropylbenzene in a reaction kettle into a flaker comprising an immersion tank, a rotary drum and a scraper system; washing the poly-coupled wilt material introduced into the leaching tank by using a washing medium; a cooling medium is sprayed towards the rotary drum through a spraying system, so that the washed materials are attached to the surface of the rotary drum based on the cooling effect of the cooling medium in the rotating process of the rotary drum; and the scraper system is used for scraping off the poly-mercuric chloride product attached to the surface of the rotary drum. According to the present invention, the poly-union-cake material obtained through the reaction is directly introduced into the flaker, such that the stirring precipitation process is avoided, and the step of separation through the plate-and-frame filter press or the centrifuge after the poly-union-cake material is subjected to stirring precipitation in the stirring kettle in the prior art is omitted, such that the operation is reduced, the efficiency is easily improved, the cost is easily saved, and the product yield and the product purity are high.

The utility model relates to a high-sealing swing granulator which comprises a machine body, a base is fixedly installed at the bottom of the machine body, a granulation box is fixedly installed at the top end of one side of the machine body, net stretching seats are installed at the bottoms of the two ends of the granulation box in an embedded mode, and a gear shaft is fixed to the upper portion of the machine body in a penetrating mode. The gear shaft is connected with the net stretching seat at one end in a penetrating mode, a bearing seat is fixedly installed on the outer side of the net stretching seat at the other end, a spline small shaft is movably installed on the inner side of the bearing seat through a bearing, and the bearing seat is connected with the spline small shaft in a sealed mode through a framework oil seal. According to the high-sealing swing granulator, sealing connection is achieved through the polytetrafluoroethylene sealing ring, the sealing performance of the connecting position is improved, materials are prevented from leaking out of gaps of the connecting position, the driving motor drives the valve element to turn over through the transmission shaft and the rotating arm, and therefore opening and closing of an outlet of the discharging hopper are achieved. The operation is convenient; and meanwhile, the overall sealing performance is further improved.

The utility model relates to the technical field of compound fertilizer production and processing, and discloses a multi-stage drum granulator which comprises a base, and the bottom of the base is hollowed out; the protective shell is arranged at the upper end of the base, the protective shell is fixedly connected with the base, and one end of the protective shell is fixedly connected with a feeding port; the granulation assembly is arranged in the protective shell, the granulation assembly is used for screening while granulation, the granulation assembly comprises mounting frames, a connecting pipe and a rotary drum barrel, the mounting frames are symmetrically arranged on the protective shell and fixedly connected with the protective shell, and after granulation, the fertilizer is driven by the auger to move towards the direction of the second discharge port; the small-size fertilizer falls to the opening of the protective shell through the holes in the rotary drum and is discharged through the first discharge port, and the large-size fertilizer is discharged from the second discharge port under the driving of the auger, so that secondary screening of waste particles by virtue of a screening machine is avoided, the production steps are reduced, and the production cost is reduced.

The utility model relates to the field of compound fertilizer processing equipment, and discloses a water-soluble compound fertilizer rotary drum granulator which comprises a base, a tank body is fixedly connected to the top of the base, a protection box is fixedly connected to the outer wall of the tank body, a motor is arranged in the protection box, and the output end of the motor is fixedly connected with a first rotary column. The first rotating column is rotationally connected to the interior of the protection box, a first gear is fixedly connected to the outer wall of the first rotating column, a second rotating column is rotationally connected to the interior of the protection box, a second gear is fixedly connected to the outer wall of the second rotating column, and the first gear is meshed with the second gear. According to the utility model, the motor, the rotating column I, the gear I and other parts are matched, so that the equipment realizes a uniform granulation effect through different rotating directions, and the problem that materials are possibly non-uniform due to rotating granulation in the same direction, so that the equipment cannot meet the expected processing requirement, and the product quality is influenced is solved.

The present application discloses a powder granulation mechanism and an electrode production system, wherein the powder granulation mechanism comprises an inner cylinder, an outer cylinder, a suspension force supply device and a stirring device arranged in the inner cylinder, the inner cylinder is used to contain powder and binder, the inner cylinder and the outer cylinder are arranged at intervals from each other in their own radial direction and form a circulation channel, a plurality of first sieving holes are arranged through the wall of the inner cylinder, and the suspension force supply device is connected to the circulation channel; wherein the suspension force supply device can provide suspension force to the circulation channel. According to an embodiment of the present application, the powder granulation mechanism can mix and crush the mixture of powder and binder in the inner cylinder through the stirring device, the crushed particle structure flies into the circulation channel through the first sieving hole, and rolls and grinds under the action of the suspension force to improve the sphericity. The powder granulation mechanism can reduce the possible aggregation between the particle structures and improve the fluidity of the particle structure to improve the quality of the electrode.

The invention relates to chemical fertilizer production, and provides a multi-tube reaction-based ammonium phosphate drum granulation system, which comprises a granulator, a pre-neutralization tank and a tube reaction tank, the granulator is internally provided with an ammonia distributor, and a tube reactor A, a tube reactor B and a tube reactor C which are arranged below the ammonia distributor; the A pipe reactor and the B pipe reactor are both connected with a pipe reactor tank, and the pipe reactor tank is connected with a phosphoric acid cleaning agent; the C pipe reactor is connected with a pre-neutralization tank, the pre-neutralization tank is connected with an acid source, and the acid source comprises raffinate acid or sludge acid. The ammonium phosphate rotary drum granulation system based on the multi-tube reactor can effectively consume raffinate acid and sludge acid to produce DAP products.

Disclosed is an aggregate comprising a cement comprising ordinary Portland cement, ground granulated blast furnace slag, and bottom ash, where the cement is hydrated in the presence of the ground granulated blast furnace slag to form calcium silicate hydrate or a derivative thereof that encapsulates the bottom ash. Also disclosed herein is a method of producing the aggregate, the method comprising mixing the cement and ground granulated blast furnace slag with the bottom ash in the presence of water to form a precoated bottom ash, and granulating the precoated bottom ash.

The utility model discloses a drainage device for a sulfur forming roller granulator, which comprises a gas-liquid pump, an input pipeline and an output pipeline, one end of the input pipeline is connected with a condensed water main pipe of the roller granulator, and the other end of the input pipeline is connected with an inlet of the gas-liquid pump; the top of the gas-liquid pump is connected with a power gas pipe for providing power for flowing of condensed water entering the gas-liquid pump, the power gas pipe is connected with an external power gas source, one end of the output pipeline is connected with an outlet of the gas-liquid pump, and the other end of the output pipeline is connected with a condensed water return main pipeline; the top of the gas-liquid pump is connected with the power gas pipe, the power gas pipe is connected with the external power gas source, and under the action of the power gas source in the power gas pipe, power can be provided for flowing of condensed water entering the gas-liquid pump through the input pipe, that is, the condensed water is recycled in a pressurization mode. Therefore, the condensed water generated by the sulfur forming roller granulator can be well pumped into the condensed water return pipeline network to be recycled.

To provide simple, material-efficient microgranulation methods for aggregating precursor particles into larger product particles with improved properties and, in some instances, novel structures, where the product particles are useful in applications requiring uniform, smooth, spherical or rounded particles, e.g., for electrode materials in lithium batteries, and other applications.SOLUTION: A microgranulation method of aggregating precursor particles comprises: obtaining an amount of precursor particles having an average particle size less than 1000 μm; obtaining an amount of templating media having an average particle size less than 500 μm and a hardness greater than that of the precursor particles; preparing a mixture comprising the amounts of precursor particles and templating media; and subjecting the mixture to a high shear and high pressure field thereby aggregating the precursor particles into product particles.SELECTED DRAWING: Figure 1

The utility model provides a glyoxylic acid crystal preparation system. Comprising a first granulator used for adding induction crystals and a glyoxylic acid solution and obtaining glyoxylic acid crystals, a first screening machine used for screening out cakes in the glyoxylic acid crystals, a second granulator used for adding the screened glyoxylic acid crystals and an acetic aldehyde solution, and a cooling bin connected with the second granulator, the second screening machine is used for screening glyoxylic acid crystals into first-stage crystals, second-stage crystals and third-stage crystals, the particle sizes of the first-stage crystals, the second-stage crystals and the third-stage crystals are sequentially increased, the first-stage crystals serve as induction crystals and are conveyed to the first granulator, the second-stage crystals are conveyed to the finished product bin, the third-stage crystals are conveyed to the crusher, and the third-stage crystals are conveyed to the second screening machine. The crusher is used for treating cakes and tertiary crystals; the glyoxylic acid crystal finished product obtained by the glyoxylic acid crystal preparation system is high in quality, not easy to cake and convenient to store and transport.

The invention discloses a DAP production system and method.The DAP production system comprises a DAP pelletizer, an MAP pelletizer, a classifying screen and a crusher which are sequentially arranged, the DAP pelletizer and the MAP pelletizer are internally connected with a first tubular reactor and a second tubular reactor respectively, phosphoric acid with the low concentration reacts with ammonia in the first tubular reactor, and phosphoric acid with the low concentration reacts with ammonia in the second tubular reactor; then spraying the ammonium phosphate slurry on a material in a DAP granulator for granulation, burying an ammonia distributor in the material, ammonifying and neutralizing ammonium phosphate in the material, and feeding the neutralized and granulated granular DAP material into an MAP granulator; the method comprises the following steps of: reacting phosphoric acid with high concentration with ammonia in a second tubular reactor to generate ammonium phosphate slurry, spraying the ammonium phosphate slurry into an MAP granulator, forming MAP fine particles from the slurry in airflow in the MAP granulator, drying and granulating the material by using reaction heat, screening the dried material, and taking the qualified material as a target product.

The utility model discloses a roller granulator for compound fertilizer production, which relates to the technical field of compound fertilizer production equipment and comprises a support rack and a rotating cylinder horizontally arranged on the support rack in a rotatable structure. A power output mechanism for driving the rotating cylinder to rotate is arranged on the supporting rack; corresponding to the power output mechanism, driven sprocket rings are circumferentially arranged on the rotating cylinder; the power output mechanisms on the supporting rack are arranged on the outer side of the pitching projection position of the rotating cylinder, driving chain gear rings of the power output mechanisms are matched with driven chain gear rings on the rotating cylinder in a spaced mode, and a closed-loop transmission chain is connected between the driving chain gear rings of the power output mechanisms and the driven chain gear rings on the rotating cylinder. According to the utility model, the utilization space at the bottom of the rotating cylinder is increased, the whole structure is more compact, and convenience and flexibility are improved.

The utility model relates to the technical field of coal synthesis ammonia and urea production, in particular to an improved cooling device of a pelletizer, which comprises a fluidization fan, one end of the fluidization fan is fixedly connected with a fluidization air inlet pipe, the other end of the fluidization fan is fixedly connected with a fluidization air outlet pipe, and one end of the fluidization air outlet pipe is fixedly connected with the pelletizer. One end of the pelletizer is fixedly connected with a molten urea pipe and a hopper discharging pipe, one end of the hopper discharging pipe is fixedly connected with an anti-blocking hopper assembly, the other end of the pelletizer is fixedly connected with a large-particle urea discharging pipe, the middle part of the fluidized air outlet pipe is fixedly connected with a CO2 pipe, one end of the CO2 pipe is fixedly connected with a CO2 desorption tower, and one end of the fluidized air outlet pipe is provided with an emptying pipe; according to the improved cooling device of the pelletizer, the emptying amount of CO2 gas is effectively reduced mainly through the arrangement of an improved circulating structure, environmental pollution is avoided, and the situation that equipment cannot operate due to blockage of raw materials is avoided through the arrangement of the anti-blocking hopper assembly.

The application provides a balling and film coating integrated machine, which comprises a rack, a roller assembly arranged on the rack and comprising a plurality of parallel rollers, a rubber belt arranged on the roller assembly and capable of being driven by the roller assembly, an arc-shaped space with a lower recess and an open upper side formed on the rubber belt and serving as a work area, the length direction of the work area being parallel to the axis direction of the rollers, the work area having an included angle with the horizontal plane and forming a feeding end and a discharging end, a main feeding port arranged above the feeding end of the work area, a film coating feeding port arranged above the work area and downstream of the main feeding port, and a spray head arranged above the work area and sequentially arranged along the length direction of the work area. The balling and film coating integrated machine has the advantages of no material transfer, balling and film coating functions, continuous production without shutdown, high processing efficiency and good use flexibility.

This invention relates to the field of fluidized bed granulation technology, and discloses a drum-type fluidized bed granulator for producing calcium ammonium nitrate and its processing technology. The fluidized bed granulator includes a drum-type fluidized bed body and an atomizing nozzle body disposed inside it, and further includes: an inclined rotating assembly. The inclined rotating assembly drives the atomizing nozzle body to reciprocate around its connecting axis with the drum-type fluidized bed body. By setting the inclined rotating assembly, the invention drives the atomizing nozzle body to reciprocate around its connecting axis with the drum-type fluidized bed body, and the axis of the atomizing nozzle body is arranged at an acute angle with the central axis of the drum-type fluidized bed body. This structure allows the atomizing nozzle body to continuously change the spray angle during the spraying process, so that the calcium ammonium nitrate liquid uniformly covers the surface of the particle layer in the fluidized bed in a dynamic fan-shaped manner.

The invention discloses a production method of a polyglutamic acid compound fertilizer, which comprises the following steps: uniformly mixing a basic compound fertilizer, putting into a roller granulator, and dissolving sodium polyglutamate in water to prepare a neutral solution; the sodium polyglutamate aqueous solution, an acid solution and a cross-linking agent are jointly used as a binder and are respectively sprayed into a roller granulator through a pipeline in a spray form for granulation, and compound fertilizer particles are cooled and coated after being discharged. The polyglutamic acid compound fertilizer needs less heat energy in the production process, the problems of pipeline blockage and granulation failure can be avoided, the material returning speed is high, the material returning regeneration rate is low, and the production efficiency is high.

The invention discloses a system and a method for manufacturing dry desulfurization and denitrification catalyst particles by using red mud, and belongs to the technical field of flue gas purification. The device is characterized in that desulfurized and denitrated red mud particles are discharged from a reaction tower, then enter a crusher to be crushed, then enter a stirrer to be mixed, humidified and prepared, then enter a granulation device 4 to be granulated, the granulated particles are dried and sieved, qualified particles return to the reaction tower to be continuously subjected to desulfurization and denitration reaction, and the desulfurized and denitrated red mud particles are obtained. And returning unqualified particles to the granulation device for re-granulation. The red mud is used as the catalyst, the price is low, the cost is saved, the reaction temperature is low, the denitration reaction can be carried out after flue gas dust removal, the influence of dust on the denitration reaction is reduced, generated sulfate and nitrate can be subjected to resource recycling, the energy consumption is lower, the structure is simpler, and solid waste resource recycling is achieved.

The present invention provides a rotary drum granulator for improving the uniformity of particles, which includes a bearing seat, a rotating drum, a first nozzle, a particle leveling mechanism, and a driving mechanism. A fixed frame for adjusting the angle of the bearing seat is provided at the lower part of the bearing seat, the rotating drum is rotatably arranged on the bearing seat, and organic fertilizer raw materials are formed into particles by the rotation of the rotating drum. The first nozzle is arranged in the middle of the rotating drum to humidify the organic fertilizer raw materials. The particle leveling mechanism is fixedly arranged inside the rotating drum to perform particle leveling treatment on the particles formed by the rotation of the rotating drum. The driving mechanism is fixedly arranged on the bearing seat to drive the rotating drum to rotate. The rotary drum granulator for improving the uniformity of particles described in the present invention can adjust the angle of the rotating drum to improve the uniformity of granulation by providing a fixed frame and an adjusting mechanism; the organic fertilizer raw materials are uniformly humidified and treated by providing the first nozzle and the particle leveling mechanism to ensure the uniformity of the particles; and powder and uniform particles are effectively filtered out by providing a primary screen and a secondary screen.

The application relates to the field of fertilizer granulation technology, in particular to a fertilizer drum granulation device, which comprises a bottom plate, two support plates are fixedly connected to the upper end of the bottom plate, a connecting shaft is movably connected between the two support plates, a rotating drum is movably connected to the outer side of the connecting shaft, two screening rings are fixedly connected to the inner side of the rotating drum, a feeding mechanism is arranged in the connecting shaft, materials are added into the rotating drum through the feeding mechanism, a connecting ring is fixedly connected to the inner side of the rotating drum, and a plurality of grooves are formed in one side of the connecting ring; through the arrangement of the grooves and filtering through holes, the materials with qualified sizes pass through the filtering through holes to enter the next working procedure, and the materials with large sizes are filtered in the grooves; the large particles filtered in the grooves are crushed through a crushing mechanism; the crushed materials are pushed into a connecting box through a pushing mechanism and are finally re-conveyed to the material entering position through a spiral conveying rod to be re-molded.

The invention relates to a system (10) for coating powdered raw material, the system comprising: a turbine (12) for rotating a mass of carrier particles (20) in a direction of rotation; a dosing device (14) for introducing at least one powdered raw material (26) into the turbine (12), wherein the dosing device (14) comprises a feed screw (22) having an end (28) configured to be arranged in the mass of carrier particles (20); a spray nozzle (16) for spraying a liquid (32) into the turbine (12), wherein the spray nozzle (16) has an outlet (30) configured to be arranged in the mass of carrier particles (20), and wherein the outlet (30) of the spray nozzle (16) is positioned downstream of the end (28) of the feed screw (22) in the direction of rotation of the mass of carrier particles (20), such that the powdered raw material (26) is mixed by the nozzle delivering the sprayed liquid (32).

The utility model discloses a rotary drum type granulator for fertilizer production, which relates to the technical field of fertilizer production and comprises a horizontal barrel, a driving gear is sleeved in the middle of the horizontal barrel, two driven belt wheels are fixedly mounted on the horizontal barrel, a mounting ring is fixedly mounted in the middle of the horizontal barrel, the driving gear is sleeved on the mounting ring, and the two driven belt wheels are fixedly mounted on the mounting ring. The driving device is used for driving the driving gear to rotate, the driving gear rotates to drive the horizontal barrel to rotate, raw materials are rubbed and extruded through rotation of the horizontal barrel, the raw materials are gradually granulated, when the driving gear needs to be disassembled, the nut is disassembled, and when the driving gear needs to be disassembled, the driving gear can be fixed through the nut, so that the raw materials can be conveniently disassembled. The fixing ring can be separated from the baffle ring, at the moment, limiting and fixing of the driving gear are relieved, the driving gear can be detached from the horizontal cylinder, the driving gear can be replaced conveniently, and follow-up granulation is facilitated.

The invention provides a chemical fertilizer production device, and relates to the technical field of chemical fertilizer processing, the chemical fertilizer production device comprises a roller and a bottom plate arranged below the roller, the outer wall of the roller is provided with a plurality of limiting wheels and driven gears, and the bottom plate is provided with a driving part for driving the roller to rotate; the roller cleaning machine further comprises a machine box, the bottom plate is arranged above the machine box, an adjusting mechanism is arranged in the machine box and used for adjusting the inclination angle between the axis of the roller and the ground, and a cleaning assembly which is detachably arranged is further arranged on one side of the machine box and used for scraping away attachments on the inner wall of the roller. According to the chemical fertilizer production device, the inclination angle can be adjusted in a self-adaptive mode, it is ensured that each material is granulated under the optimal condition, the granulation rate is increased, meanwhile, the energy consumption and the material returning rate are reduced, and the production efficiency is improved.

The invention discloses an improved mixing device for producing a silicon fertilizer from mine tailing slag in the technical field of tailing slag utilization, the improved mixing device comprises a rotary drum granulator, a vibration screening machine and a returned material conveying mechanism, the rotary drum granulator comprises a water vapor input hole, and a hole diameter adjusting unit is arranged at the water vapor input hole; the returned material conveying mechanism comprises a returned material conveying belt and a conveying stranding cage unit; the conveying stranding cage unit is used for conveying excess materials on the returned material conveying belt to the rotary drum granulator; a weight sensing assembly is arranged in the conveying auger unit and drives the aperture adjusting unit to adjust the aperture size of the water vapor input hole. The water content at the feeding port of the rotary drum granulator can be adjusted in real time according to the size of granules discharged by the rotary drum granulator; the water content at the feeding port is reduced when a large amount of particles are discharged, and the water content at the feeding port is increased when a large amount of particles are discharged, so that the discharging size of the whole rotary drum granulator is uniform.

The invention relates to the technical field of granulating devices, in particular to a granulating machine for improving the strength of urea-based compound fertilizer granules, which is characterized in that a spiral extrusion device is fixedly mounted at the upper ends of two upright posts, the outlet end of the spiral extrusion device is matched with a granulating device, and supporting legs are arranged below the granulating device; a mounting disc is fixedly connected to the upper ends of the supporting legs, a vertical shaft is coaxially and rotatably connected to the upper end of the mounting disc, a driving motor used for driving the vertical shaft is fixedly connected to the lower end of the mounting disc, and a granulation rotary drum is eccentrically and fixedly connected to the upper end of the vertical shaft; the pelletizing device comprises a cutter abutting against the outlet end of the spiral extrusion device, a sliding block is fixedly connected to the left end of the L-shaped connecting rod, the spiral extrusion device is fixedly connected with a guide assembly in transverse sliding fit with the sliding block, and a driven groove formed in the vertical direction is formed in the left end of the driven rod; the spiral extrusion device is fixedly connected with a power assembly, and the output end of the power assembly is connected with the driven groove in a rolling and inserting mode.

To solve the problems of existing clay cat litter, such as not being able to be soaked, serious wall sticking, and not being able to be flushed into the residential sewer, the present application provides a production method of mineral cat litter and mineral cat litter. Non-clay mineral sand in nature is used as raw material, ball-milled to 300-400 mesh, and sprayed in mist form after being made into slurry by high-pressure pump, and the mist-shaped slurry is collided by hot air at 280-360 DEG C to form porous solid particles; after being fully mixed with a small amount of bentonite or kaolin, rolling granulation is carried out, a specific solution is added in the granulation process, and then it is sent to a roller dryer for drying and heating, the heating temperature is 300-360 DEG C, and the finished product is obtained. The beneficial effect of the production method of the present application is that the finished product has excellent agglomeration performance and low density, which can reduce the accumulation of pet excrement odor in the litter tray, and can quickly disperse in the environment with sufficient moisture without accumulation, and is especially suitable for pet toilet equipment that can automatically collect, crush and discharge.