21results about How to "Reduce compaction" patented technology

The utility model provides single-head powder filling equipment. The single-head powder filling equipment comprises a mounting frame connected with a machine; the filling assembly is arranged below the mounting frame and comprises a filling cavity with the bottom gradually shrunk and a stirring mechanism stretching into the filling cavity; the stirring mechanism comprises a stirring rod which is arranged in the filling chamber in a liftable manner; the shape trend of one end, close to the bottom of the filling chamber, of the stirring rod is consistent with the trend of the inner wall of the bottom of the filling chamber; the driving assembly is arranged above the mounting frame, the output end of the driving assembly is connected to the stirring rod to drive the stirring rod to rotate, and the driving assembly comprises a lifting mechanism for driving the stirring rod to lift. According to the powder filling device, the stirring rod is driven by the transmission mechanism and the lifting mechanism to ascend, descend and rotate, the bending design of the stirring rod is matched, it is guaranteed that powder cannot be hardened on the upper middle portion and the bottom in the filling cavity in the filling process, and the working efficiency and the filling precision are improved.

This utility model discloses a sand and gravel separator, specifically relating to the field of concrete production technology. It includes a collection box with an auger conveyor installed on one side. The bottom of the auger conveyor is connected to a discharge port. A screening machine is installed at the top of the collection box, with a feed port connected to its top. A cleaning component is installed inside the screening machine, and a feeding mechanism is installed inside the discharge port. The cleaning component includes a baffle plate fixedly connected to the inside of the screening machine. A first filter screen and a second filter screen are fixedly connected inside the screening machine by screws, with the second filter screen installed on one side of the first filter screen. By setting up the cleaning component and the feeding mechanism, this utility model allows for dual screening of sand and gravel by the first and second filter screens, effectively cleaning their surfaces, reducing clogging and improving screening efficiency, maintaining good separation performance, and minimizing sand and gravel accumulation and compaction inside the discharge port, ensuring smooth discharge of sand and gravel.

This invention provides a method for enhancing the efficacy of *Citrus trifoliata* (bitter orange) cultivation and suppressing weeds, belonging to the field of ecological planting technology. This method is suitable for mature fruiting *Citrus trifoliata* forests, achieving both fertilization and weed suppression. It efficiently combines woody medicinal herbs, legumes, and herbaceous medicinal herbs, rationally intercropping them according to their growth and development cycles to fully utilize the plant growth cycles and achieve the goals of efficient land use, soil improvement, and diversified income synergy. This is of great significance for promoting the standardized and ecological cultivation of Chinese medicinal herbs. Using this method, the annual application of chemical nitrogen fertilizer can be reduced, increasing soil organic matter content; a year-round continuous weed suppression system is constructed, with wild peas covering in winter and cassia seed covering in summer, improving weed control efficiency and reducing manual weeding costs; significantly increasing the fruit setting rate, single fruit weight, and effective fruit components of *Citrus trifoliata*; and increasing economic benefits in the forest.

The utility model relates to fuel feeding technology field especially relates to a wood chip fuel precision feeding device, including feed inlet, the first motor is provided with in feed inlet front end, the shell is fixedly connected with feed inlet lower extreme, the first motor output is fixedly connected with first linkage wheel, the linkage axle is rotatably connected with shell front end, the threaded push -on rod is fixedly connected with linkage axle rear end, the discharge gate is fixedly connected with shell lower extreme rear side, the second motor is fixedly connected with discharge gate front end, the runner is fixedly connected with second motor output, the fixed ring is fixedly connected with shell inside, the linkage lever is rotatably connected with fixed ring inside, the driving gear is fixedly connected with linkage lever upper end outside, through the cooperation design of second motor and driving gear, makes the transition cavity to form in discharge gate when the sector baffle rotates, avoids the direct contact of discharge gate and combustion chamber, prevents the direct contact of high temperature flue gas with the wood chip in threaded push -on rod through feed inlet.

The utility model discloses a printing and dyeing wastewater sludge treatment equipment with backwash function, specifically related to sludge treatment technical field, including the shell, the shell one side is connected with the drain pipe, and the shell top is installed with the apron, and the apron top is connected with the feed pipe, and the shell inside is installed with backwash subassembly and mixing mechanism, and mixing mechanism installs in backwash subassembly one side, backwash subassembly includes water pump, and water pump installs in the apron top, and the water pump output end and input all are connected with the communicating pipe. The utility model discloses through setting backwash subassembly and mixing mechanism, can enhance sludge peeling effect to can reduce the first filter barrel and the second filter barrel surface sludge concretion, prolongs the effective filter period of first filter barrel and second filter barrel, and can scrape the filter residue in real time and intercept on the second filter barrel, reduces the sludge accumulation and leads to the filtration efficiency decline, keeps the stable filtration performance of second filter barrel.

The utility model discloses anti-accumulation drying equipment for quartz sand production. The anti-accumulation drying equipment comprises a box body, a box door is rotationally arranged on the box body, a containing box used for containing quartz sand is arranged in the box body, a dispersing assembly is arranged in the containing box and arranged in the containing box through a sliding mechanism, a driving mechanism is arranged below the containing box, and a drying assembly is arranged in the box body. According to the anti-accumulation drying equipment for quartz sand production, clotted quartz sand is conveniently scattered through cooperation of the driving mechanism and the dispersing assembly, the quartz sand is turned over, the driving mechanism drives the two mounting frames to continuously get close to each other, and the opposite filter screens extrude the clotted quartz sand, so that the quartz sand is uniformly dispersed, and the drying efficiency is improved. And the quartz sand can be turned over conveniently through a plurality of rhombic rake teeth, the interior of the quartz sand can be dried conveniently through a drying assembly, when the containing box moves downwards, the pressure intensity is increased, internal gas is sucked into a spray head through a hose to be sprayed out, and air can be conveniently sprayed into the quartz sand in cooperation with a movable mounting frame.

This invention provides a slope protection material composed of recycled heavy metal tailings and its preparation method. The material includes: recycled heavy metal tailings treated with a heavy metal chelating agent as a heavy metal ion capture agent, the chelating agent being added at 0.05%–0.2% of the heavy metal tailings weight; recycled heavy metal tailings as aggregate, which is mixed with natural soil to form a base material at a ratio of 1:1.5–2.5; fine aggregate and fine sand, added at 5%–10% of the base material weight; and high-viscosity industrial-grade sodium alginate added as a water-retaining and reinforcing agent, added at 0.5%–2.0% of the base material weight. Additionally, 28% organic matter is added to the base material. The application of this invention effectively solves the problems of ineffective utilization of recycled heavy metal tailings and excessive use of scarce natural soil in existing technologies, and also addresses the issues of weak strength, poor effectiveness in steep slope treatment, and poor stability in existing slope protection materials.

This invention relates to the field of waste utilization and organic fertilizer preparation technology, specifically to a high-carbon, low-nitrogen organic fertilizer prepared from bayberry branches and its preparation method. The organic fertilizer raw materials, by weight, include: 80-150 parts of crushed bayberry branches, 3-5 parts of a nitrogen source, 0.15-0.2 parts of a compound microbial agent, and 0.1-0.15 parts of auxiliary materials; the nitrogen source is one or a combination of manure and urea; the compound microbial agent is selected from one or a combination of lignin-degrading bacteria, nitrogen-fixing bacteria, cellulose-decomposing bacteria, and phosphorus- and potassium-solubilizing bacteria; the auxiliary material is a mixture of lime and gypsum. The carbon-to-nitrogen ratio of the mixed raw materials is 45-70:1. This invention enables the resource recycling of bayberry branches, producing high-quality, high-efficiency organic fertilizer that is well-suited to the growth characteristics of bayberry cultivation, which requires strict nitrogen control. It can effectively reduce the fruit drop rate, improve fruit flavor, and enhance sweetness and quality. Furthermore, this invention can sustainably improve soil fertility, maintain soil microbial community stability, and create a favorable environment for bayberry root growth.

This invention belongs to the field of agricultural microbial technology, and discloses a strain of *Chlorella vulgaris* and its application in improving the stability of mushroom residue substrate. The *Chlorella vulgaris* strain is *Chlorella vulgaris* (…). Chryseobacterium The strain JYT19 (sp.) was deposited on February 2, 2026, with accession number CGMCC No. 37640. It is a new strain isolated from coconut coir material. Inoculating this strain into mushroom substrate significantly improves the physical structural stability of the substrate, delays collapse and compaction, and extends its service life. Simultaneously, it has beneficial effects on plant growth and quality improvement. This invention provides an environmentally friendly and efficient microbial technology solution to address the problems of rapid degradation and poor stability of mushroom substrate, and has significant application value in the fields of soilless cultivation in facility agriculture and resource utilization of organic waste.

The application discloses a backwashing screen filter based on micro-nano bubble reinforced filtration, and belongs to the field of filtration devices in agriculture, which comprises a filter shell with a water outlet, a first inlet, a second inlet and a blowdown outlet; a filter screen that separates the internal space of the filter shell into a filter screen inside filtering area and a filter screen outside water outlet area; a filtration process water inlet pipeline and a backwashing process water inlet pipeline, the first end of the filtration process water inlet pipeline is connected with the first inlet, the first end of the backwashing process water inlet pipeline is connected with the second inlet, the second end of the filtration process water inlet pipeline and the second end of the backwashing process water inlet pipeline are connected with a water inlet three-phase valve, and the third interface of the water inlet three-phase valve is a water inlet; and a micro-nano bubble generator that introduces gas into the water inlet area of the filter shell and forms a gas-liquid mixed flow rich in micro-nano bubbles. The application can effectively improve the filtration performance, self-cleaning capacity and operation stability of the filter.

The utility model relates to the technical field of veterinary drug storage, in particular to a veterinary drug storage device. Comprising a storage box body, a sealing cover is installed above the storage box body, a sealing gasket is installed below the sealing cover in a clamped mode, a driving motor is installed at the bottom of the storage box body, the output end of the driving motor is connected with a speed reducer, the upper portion of the speed reducer is connected with a rotating tray through a rotating shaft, and a protruding block is arranged at the top of the rotating tray. The driving motor drives the rotating tray to rotate through the speed reducer, powder at the bottom of the storage box is driven to be stirred through rotation of the rotating tray and the protruding block, distribution of the powder at the bottom of the storage box is adjusted, and then the hardening phenomenon of the powder in the storage box is reduced.

The utility model relates to a paddy field plant protection machine with double-stage suspension tracked chassis, belongs to the field of agricultural machinery, the paddy field plant protection machine includes chassis device, two axle mechanical arm spraying device, DC drive motor, the chassis device includes built-in suspension device and external suspension device, and both can realize the buffer of small amplitude terrain height difference and large amplitude terrain height difference, the two axle mechanical arm spraying device covers the plant type change of crops whole growth period depending on horizontal rotation joint and pitch swing arm joint, realizes target site precision pesticide application, the DC drive motor provides power for tracked walking, realizes steering through setting up different rotating speed on both sides, guarantees muddy road surface traction and small field block steering flexibility.

This invention discloses a composite microbial soil conditioner, its preparation method, and its application. The soil conditioner, by weight, comprises 400-500 parts of substrate, 40-60 parts of microbial inoculant, and 500-600 parts of excipients. Through the synergistic effect of multiple microbial strains, this invention can alleviate soil compaction, improve the pH conditions of acidified soil, and increase the content of ammonia nitrogen in the soil, thereby enhancing soil fertility and significantly improving the diversity of soil microorganisms in acidified soil, making the acidified soil suitable for crop growth. The addition of organic components provides sufficient nutrients for crops, promoting crop growth and increasing yield and quality. It shortens the soil improvement time while enhancing the improvement effect, and the mixing of multiple substances allows for better improvement results with a smaller dosage, comprehensively saving on soil improvement costs.

The invention relates to a mechanism for accurately controlling feeding of tungsten carbide powder. The mechanism comprises a feeding hopper and a discharging hopper. The upper ends of the rapid discharging pipeline and the material supplementing pipeline are communicated with the discharging opening of the feeding hopper, and the lower ends of the rapid discharging pipeline and the material supplementing pipeline are communicated with the feeding opening of the discharging hopper; the rapid discharging large spiral shaft is mounted in the rapid discharging pipeline; the material supplementing small spiral shaft is mounted in the material supplementing pipeline; and the diameter of the feeding end of the small feeding screw shaft is larger than that of the discharging end of the small feeding screw shaft. The feeding precision and efficiency are improved, a large and small double-spiral-shaft cooperative working mode is adopted, rapid feeding is achieved through the large spiral shaft in the early stage, precise material supplementing is achieved through the small spiral shaft in the later stage, a differential control mode is matched, efficient feeding of 50 kg / min is achieved, the feeding precision of + / -10 g is guaranteed, and the feeding efficiency is improved. The core pain point that an existing single-screw-shaft mechanism is fast and not precise, and precise and not fast is solved.

This utility model relates to the field of desulfurization technology, specifically a dry desulfurization treatment device for pulverized coal, including a desulfurization tower. The desulfurization tower has an air inlet at its bottom and an air outlet at its top. An adsorption box is detachably installed inside the desulfurization tower. A stirring mechanism is installed inside the adsorption box to stir the desulfurizing agent within the adsorption box. The stirring mechanism includes a stirring shaft rotatably mounted on the adsorption box and a stirring element arranged radially along the stirring shaft. An angle adjustment element is disposed inside the stirring shaft and connected to the stirring element. The raising and lowering of the angle adjustment element is driven by a speed control element installed in the desulfurization tower. This utility model can adjust the tilt angle of the stirring element by controlling the amount of flue gas supplied to the desulfurization tower, effectively reducing the stirring load while enhancing the stirring intensity of the desulfurizing agent, thus improving desulfurization efficiency to a certain extent and reducing the problem of desulfurizing agent caking.

This invention relates to the field of microbial inoculants, and particularly to a compound inoculant for controlling soil-borne diseases in farmland based on endophytic bacteria, and its preparation method. The compound inoculant is composed of a main inoculant, auxiliary inoculants, and a fungicide. The main inoculant includes *Talaromyces sp. strain HBUM07170*, *Rhizobium sp. NXC24*, and *Methylobacterium brachiatum*, while the auxiliary inoculants include *Mycobacterium sp.*, *Caulobacter sp.*, *Penicillium sp.*, and *Pyronema omphalodes*, with each strain having a concentration of not less than 10%. 8 The concentration of CFU / ml is 1:1 (main bacterial agent mixture to auxiliary bacterial agent mixture), and tebuconazole is used as the fungicide. During preparation, each bacterial strain is activated and cultured separately, then mixed according to the specified volume ratio before adding tebuconazole and stirring to dissolve. This invention's compound bacterial agent exhibits synergistic effects among the bacterial strains, effectively antagonizing Fusarium oxysporum, reducing the incidence and mortality of lily wilt, and promoting plant growth. It combines biological control with chemical-assisted antibacterial effects and can be used in the preparation of control formulations for soil-borne diseases in farmland and lily wilt.

The present application relates to air purification and clean room ventilation technical field, more specifically, the present application relates to a kind of low wind resistance high flux chemical filter structure, including the shell of filter section in air conditioning unit installation, the shell is connected with the air inlet pipeline for conveying gas to be handled;The shell can make gas form vortex air curtain guide vane;First filter element capable of carrying out preliminary processing to gas is installed in the shell, vibration element capable of disturbing filter material in first filter element is installed in the shell, collection element capable of collecting broken filter material is provided in the shell.The present application is through annular self-adapting guide, rotating vibration double-layer filter bed, variable porosity thin layer filter bed and multi-stage cooperation of cabin self-vibration fine filter, make the airflow distribution uniform entering filter layer, filter material utilization rate is high, under the premise of not increasing module external dimension, significantly reduce unit wind volume pressure drop and slow down the growth of pressure difference with running time, realize low wind resistance, high flux chemical filtration.

The invention discloses a temporary oil intermingling filter. The temporary oil intermingling filter comprises a barrel body, a cover body, a filtering cavity and an oil intermingling cavity, the oil mixing cavity is provided with an inlet section and connected to the filtering cavity through a U-shaped channel, an outlet section is arranged on the side portion of the filtering cavity, and a filtering cylinder is arranged in the filtering cavity in a suspended mode. According to the invention, the expansion cavity is arranged, the self-excitation pulse generation unit is integrated in the U-shaped channel, the water hammer effect is periodically excited by the flowing energy of the system, and the generated pressure pulsation acts on the suspended filter cartridge to form dynamic cleaning; piezoelectric ceramics can be integrated at the bottom of the filter cartridge and are matched with a water hammer effect to generate vibration so as to strengthen a cleaning effect. The device is compact in structure, can be quickly mounted without on-site fire operation, and solves the problem that pipelines are inconvenient to change in traditional oil flushing operation.

This invention belongs to the field of agricultural plant protection machinery technology, specifically relating to an electric variable displacement boom sprayer. It includes a walking mechanism, a power mechanism, a spraying mechanism, a variable displacement spraying system, and a row-to-row spraying control system. The walking mechanism includes a frame, front and rear wheels located at the bottom of the frame, and a steering control mechanism. A base, a pesticide tank, and a plunger pump are also mounted on top of the frame. The pesticide tank and plunger pump are located behind the base. The plunger pump's inlet is connected to the pesticide tank, and its outlet is connected to a water pipe. Three application branches are connected in parallel to the water pipe, each equipped with a solenoid valve. The spraying mechanism includes a lifting assembly, a central spray boom, and side spray booms. This invention automatically adjusts the wheel steering and regulates the extension and retraction of the second electric push rod based on the row line fitted by an image processor, controlling the overall displacement of the entire spray boom to ensure it is aimed at the crop row for spraying, greatly improving pesticide utilization.

This invention relates to the field of agricultural machinery technology and discloses a paddy field soil crushing and compaction vibratory slurry raising machine, comprising: a traction frame with a three-point suspension connector at one end for connecting to a traction vehicle; and a slurry mixing and soil crushing unit fixedly installed at the front end of the bottom of the traction frame for crushing and mixing rice stubble, rice straw, and soil. This device integrates the slurry mixing and soil crushing unit, dynamic compaction unit, vibratory slurry raising unit, and surface leveling unit sequentially on the same traction frame. The tractor can continuously complete the entire paddy field preparation process of slurry mixing and soil crushing, dynamic compaction, vibratory slurry raising, slurry layer creation, and surface leveling in one tractor entry. Compared with the traditional process that requires multiple operations such as soaking the field, mixing, compaction, slurry settling, and leveling, this significantly reduces the number of entries, reduces fuel consumption and soil compaction, and improves the quality and efficiency of land preparation.

The invention discloses a porous carbon fiber paper-based membrane material and a preparation method thereof. Through swelling polymerization and hydrolysis reaction, the surface of the polymethyl methacrylate microsphere is coated with polyvinyl alcohol in situ, so that the polymethyl methacrylate microsphere is endowed with hydrophilicity. Mixing the carbon fiber, the plant fiber, the phenolic resin flocculating constituent, cationic polyacrylamide and the hydrophilic polymethyl methacrylate microspheres to obtain mixed slurry; and carrying out wet molding, hot-pressing curing and high-temperature carbonization on the slurry to prepare the porous carbon fiber paper-based membrane material. The key point of the invention lies in that hydrophilic polymethyl methacrylate microspheres are introduced as a pore-forming agent, are stably dispersed in the slurry, have high retention rate, play a temporary supporting role in a hot pressing stage, and are completely decomposed to form uniform and controllable pores in a carbonization stage. The prepared paper-based membrane material has high porosity, high gas permeability, good conductivity and mechanical strength and excellent comprehensive performance, and is especially suitable for being used as a gas diffusion layer of a proton exchange membrane fuel cell.