193results about How to "Prevent compaction" patented technology

The invention discloses a microbial compound high-efficiency organic bacterial fertilizer which comprises the following raw materials: 10-20 parts of a microbial agent, 10-20 parts of humic acid, 3-10 parts of natural mineral powder, 1-7 parts of a plant extract, 2-4 parts of amino acid, 2-5 parts of a seaweed extract, 1-3 parts of chitosan, 3-7 parts of charcoal, 1-3 parts of chitin, 2-5 parts of potassium fulvate and 1-3 parts of lignosulfonate. The problems that existing organic bacterial manure is single in function, not remarkable in effect, high in preparation cost and the like are solved. The organic bacterial fertilizer has multiple functions of improving soil fertility, promoting crop growth, enhancing crop stress resistance and the like, and the preparation method is simple, easy to implement, low in cost and suitable for large-scale production.

The utility model discloses a multistage denitrification deep bed filter which comprises a filter body, a middle-section filter box is fixedly mounted at the top of the filter body, a top-end filter box is fixedly mounted at the top of the middle-section filter box, and a coarse sand layer is fixedly connected to the position, close to the bottom, in the top-end filter box. A fine sand layer, an activated carbon layer, a fiber filter screen and a membrane filter layer are sequentially and fixedly connected to the interior of the middle-section filter box from top to bottom. According to the multi-stage denitrification deep-bed filter tank, the cleaning brush is arranged in the top end filter tank and is matched with a sliding structure of an air cylinder, a driving motor and a movable plate, so that automatic cleaning of a coarse sand layer is realized, and the cleaning brush is driven by the driving motor, and the air cylinder enables the movable plate to move back and forth along a supporting sliding rod; organic matters, microorganism residue dirt and impurities accumulated on the coarse sand layer are effectively removed, the cleanliness of the pre-filtering layer is remarkably improved, and the phenomena of hardening and blocking of a filter material are effectively prevented.

Belonging to the field of petrochemical engineering, the invention discloses a catalytic slurry oil purification device, which comprises a tank body, and a feed end and a discharge end respectively arranged at two ends of the tank body. An upper partition plate and a lower partition plate are fixedly connected to the inner wall of the tank body, a discharging opening is formed in the upper partition plate, and a feeding opening is formed in the lower partition plate; the interior of the tank body is divided into three independent cavities by the upper partition plate and the lower partition plate; according to the scheme, the filter element is sleeved with the hollow cylinder, and the rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a shear force generated by rotation of the first spiral flow deflector can prevent a filter cake on the surface of the filter element from forming a compact thick layer; a filter cake layer can be controlled within a relatively thin thickness range, and the rising speed of the pressure difference is delayed, so that the operation duration of a single filtering period is prolonged; and the single-time continuous treatment capacity of the device is greatly improved.

The present invention belongs to the technical field of salt-salt separation, and relates to a method for flue gas purification and brine purification and refined disinfection salt. The process technology of the method can realize an effective brine purification process according to the change of the original brine characteristics, and can control the SO in the flue gas to purify the 2 , flue gas moisture content and other indicators and SO 3 2‑ , calcium and magnesium ions, excess alkali and solid suspended matter content, so as to reduce the content of calcium, magnesium and other impurities in disinfection salt and increase the content of NaCl in disinfection salt. The present invention effectively utilizes solid-liquid-gas waste, recycles resources, realizes limited resources, unlimited utilization, energy saving and consumption reduction, and green and low-carbon advantages.

The invention discloses an integrated floating platform based on water ecological environment monitoring and resource protection, the integrated floating platform comprises a floating plate, the bottom of the floating plate is provided with an underwater image acquisition device used for acquiring aquatic organism species data, a water quality acquisition device used for acquiring water quality data and an electric appliance device, and the top of the floating plate is provided with a planting groove; aquatic plants are planted in the planting grooves, and water seepage holes are formed in the bottoms of the planting grooves. Ecological monitoring is conducted in water areas such as lakes and wetlands, water quality and aquatic organism species data are collected in real time and transmitted to an external monitoring terminal, it is ensured that the ecological environment of the water areas is effectively protected, water is pumped into the shell through the pump body, and when the water is detected through the water quality detection device, the water is discharged through the hollow pipe and the liquid outlet nozzle; the oxygen content of the water is increased, meanwhile, the water is purified through the aquatic plants and then drained into the water area again through the water seepage holes, purification and restoration of the water body in the water area are completed, and better resource protection is achieved.

The invention relates to the field of feed production, in particular to a rotary feed production sorting device for animal husbandry, and solves the problems that the screening progress is affected due to the fact that existing equipment needs to be shut down when screening holes of the existing equipment are blocked, and flying dust can be generated in the screening process to pollute the workshop environment. A polygonal roller which is obliquely arranged is rotationally connected to the frame body, a discharging opening is formed in the downwards-inclined end of the polygonal roller, and a plurality of sieve plates which can slide in the radial direction of the polygonal roller are arranged on the circumferential surface of the polygonal roller. According to the feed screening device, the polygonal roller and a first wind wheel and a second wind wheel of the dust removal assembly can be rotated through the driving assembly, in the rotating process of the polygonal roller and a screen plate, feed can roll in the polygonal roller, the feed can be screened through the screen plate, and in the screening process, dust mixed in the feed can be raised; and the dust can be collected through the dust removal assembly and conveyed to a designated position, and dust raising in a workshop is avoided.

The utility model discloses a continuous backwashing sand filtration device which comprises a sand filtration tank, a liquid inlet pipeline is arranged on one side of the sand filtration tank, a liquid outlet pipeline is arranged on the other side of the sand filtration tank, a liquid separation seat is arranged at the end, extending into the sand filtration tank, of the liquid inlet pipeline, a sand washing mechanism is arranged in the sand filtration tank, and the sand washing mechanism comprises a sand washing assembly and a stirring assembly. The sand washing assembly is arranged in the sand filter tank and comprises a sand washing box fixedly arranged at the top of the sand filter tank; the sand suction pipe is fixedly arranged in the sand washing box, and the liquid inlet pipeline and the liquid separation seat are both arranged on the outer side of the bottom of the sand suction pipe; the sand outlet pipe is fixedly arranged at the bottom of the sand washing box, the stirring assembly is arranged in the sand washing assembly and used for stirring the interior of the sand washing box and the bottom of the sand suction pipe, pollutants and water are discharged from the liquid outlet holes through rotation of the filter box, and centrifugal force generated during rotation can also prevent gravel from hardening; and the stirring rod is driven by the rotating rod to rotate to stir the bottom of the sand suction pipe.

The invention relates to a stirring type particle circulation coupling reactor, a fluidized bed and a particle circulation coupling method, the fluidized bed comprises a reactor, a solid recovery device and a storage tank, a stirring structure is introduced into the reactor, and horizontal shearing force generated by stirring is used for crushing large-size particle agglomerates to prevent hardening of micro-nano particles; meanwhile, the circular flow of the gas medium provides a vertical acting force for the particles, and the coalescence behavior of the gas phase and the solid phase in the reactor is reduced, so that the problem that the micro-nano particles are blocked in the annular space area of the reactor is solved, the fluidization quality is improved, and the circular continuous treatment of the micro-nano particles is realized; the fluidized bed utilizes the built-in guide cylinder to realize circulation, and the circulation direction can be a central airlift type or a central descending type by adjusting the gas flow rate ratio of the guide cylinder to the annular gap area, so that the circulation flow of particles is enhanced, and the fluidization quality of the particles at the bottom of the circulation section is improved.

The invention discloses a reseeding device for ecological restoration and treatment of degraded grassland grassland, and belongs to the technical field of grassland seeding equipment. The reseeding device for ecological restoration and treatment of the degraded grassland comprises a vehicle body and a hopper used for throwing grass seeds, and further comprises an outer pipeline connected with the vehicle body through a pivot; when the bottom end of the spiral plate is inserted into soil, the outer pipeline is driven to rotate, and the soil can drive the outer pipeline to move downwards through the spiral plate; a first material through hole is formed in the side wall of the bottom end of the inner pipeline, and a pipe hole of the inner pipeline communicates with a pipe hole of the outer pipeline through the first material through hole; the large end face of the conical body can be attached to the bottom end of a pipe hole of an outer pipeline; and the lifting mechanism is used for driving the inner pipeline to move in the vertical direction relative to the outer pipeline. According to the reseeding device for ecological restoration and treatment of the degraded grassland, when reseeding is carried out on defect positions on the degraded grassland, the grassland does not need to be turned over, so that damage to surrounding grassland caused by reseeding of grass seeds can be avoided, and further degradation of the grassland is prevented.

The invention provides a vertical multilayer heating disc sludge drying machine, which comprises an outer cylinder, a main shaft heating disc assembly, a steam inlet assembly, a steam outlet assembly, a material distribution pipe assembly, a scraper assembly, a driver, a speed reducing mechanism and the like, the material distributing pipe assembly and the scraper assembly rotate at a lower rotating speed under the transmission of the driving machine and the speed reducing mechanism, and are respectively fixed on the two sides of the outer cylinder through connecting devices; the main shaft heating disc assembly comprises a main shaft, a core pipe, a shaft sleeve and a heating disc, the upper end and the lower end of the main shaft are provided with a steam inlet assembly and a steam outlet assembly respectively, the material distribution pipe assembly comprises a material distribution pipe, a material distribution pipe sleeve and a rotating handle, and the material distribution pipe is in clearance fit with the material distribution pipe sleeve. The scraper assembly comprises a plurality of scrapers, a scraper connecting shaft, a connector and a scraper support. The drying machine is small in occupied area, the water content is easy to control, sludge and the heating disc are not easy to adhere, and the efficiency is high.

The invention relates to the technical field of agricultural fertilizers, in particular to a preparation method of a soil improvement type microbial fertilizer, which is used for solving the problems that most of microbial fertilizers are poor in water retention capability and microbial activity, complex in preparation process and high in cost, and the effect of the microbial fertilizers in practical application is restricted. According to the preparation method, various raw materials are reasonably compounded, rich nutritional ingredients are provided for the soil improvement type microbial fertilizer, the load type complex microbial inoculants are added into the soil improvement type microbial fertilizer, the synergistic effect of various beneficial microorganisms can be achieved, and therefore the soil structure is effectively improved, the soil fertility is improved, and plant growth is promoted; the fertilizer has the advantages of good fertilizer holding capacity, degradability and water and fertilizer saving, the yield and quality of crops are finally improved, and the purpose of agricultural ecological environment protection is achieved.

The invention discloses a calcium-based dry flue gas desulfurization system, which relates to the technical field of industrial desulfurization, is suitable for a gas power plant, and comprises a desulfurization reactor, a first desulfurizer storage bin, a first weighing feeder and a first heating device; the first desulfurizing agent storage bin is used for accommodating high-activity calcium hydroxide powder; the first weighing feeder is connected between the desulfurization reactor and the first desulfurizer storage bin and is used for conveying high-activity calcium hydroxide powder into the desulfurization reactor to react with sulfide; the first heating device is mounted in the first desulfurizing agent storage bin and is used for heating the high-activity calcium hydroxide powder. According to the technical scheme, the high-activity calcium hydroxide powder is heated by the first heating device mounted in the first desulfurizing agent storage bin, so that the high-activity calcium hydroxide powder is prevented from absorbing water and being hardened, and the desulfurizing efficiency of the system is further improved.

The invention relates to the technical field of heating furnace flue gas desulfurization treatment, in particular to a desulfurization treatment system and a desulfurization treatment method suitable for the condition that the sulfur content of heating furnace flue gas is large. The desulfurizing agent (slaked lime) circularly flows in the desulfurizing system and is fully contacted and reacted with sulfides in the flue gas in the desulfurizing tower, so that the desulfurizing process under the working condition that the sulfur content of the flue gas of the heating furnace is greater than 1000mg / Nm < 3 > can be realized, and the sulfide emission of the heating furnace is greatly reduced; according to the invention, a desulfurizing agent recycling technology is adopted, so that the generation of desulfurization wastes can be effectively reduced, and the later operation and maintenance cost of the system is greatly reduced; according to the invention, desulfurized flue gas is subjected to electric heating treatment, and hot flue gas is introduced into the bag-type dust collector and is uniformly sprayed into the ash bucket and the descending channel through the nozzles, so that hardening and dew point corrosion of a desulfurizer can be effectively prevented.

The utility model relates to the technical field of potting, in particular to a flowerpot structure. Comprising a flowerpot body and a flowerpot base, a plurality of air holes are formed in the lower end of the flowerpot body, a lead sleeve is arranged at the inner bottom of the flowerpot body and penetrates through the inner bottom of the flowerpot body, a water absorption lead is arranged in the lead sleeve, one end of the water absorption lead extends to the outer side of the lead sleeve, a base is arranged at the lower end of the lead sleeve, and the water absorption lead is arranged in the base. A plurality of draining holes are formed in the bottom of the base and the bottom of the flowerpot body, the flowerpot body makes contact with the flowerpot base and is located above the flowerpot base, water flow is guided through the water absorption lead, the water flow is increased, the watering amount can be managed and controlled more effectively, various requirements can be met, the water absorption lead can prevent soil hardening, soil looseness is kept, and the water absorption effect is good. Therefore, the root system can better breathe and absorb nutrients, healthy growth of plants is promoted, and the flower growing interest of flower growing people is effectively improved.

This utility model discloses a filter paperboard punching mechanism, relating to the field of filter paperboard processing technology. It includes a hydraulic punching main unit, with a punching worktable on the front side of the main unit. A lower punching die is fixedly connected to the upper front end of the worktable. A hydraulic telescopic rod is fixedly connected to the upper end of the main unit via a cantilever, positioned directly above the lower punching die. Through the use of elastic heating support pads and elastic pressure pads, the loose fiber structure of the filter paperboard is effectively prevented from being compacted, ensuring the air permeability and filtration efficiency of the filter paperboard. Simultaneously, the elastic heating support pads heat the filter paperboard when in contact with it, softening the fibers and preventing brittle breakage, thus improving the quality of the punching process. Furthermore, the elastic pressure pads further reduce the direct impact of the punching blade on the paperboard, resulting in a smoother punching edge, reducing burrs and fiber damage, and improving the overall quality of the product.

The utility model discloses a desulfurization wastewater drying tower, which belongs to the field of wastewater treatment and comprises an inner cylinder and an outer cylinder, a hot air inlet is arranged on one side of the lower portion of the inner cylinder, an ash hopper is arranged on the lower portion of the inner cylinder, an ash discharging valve is arranged on the lower portion of the ash hopper, the lower portion of the inner cylinder is communicated with the outer cylinder through a plurality of circulation pipes, and a communication pipe is arranged on the lower portion of the hot air inlet. An exhaust pipe is arranged on the upper portion of the outer cylinder, a rainproof cap is arranged on the upper portion of the exhaust pipe, a preheating box is arranged on the lower portion of the outer cylinder, and a waste water inlet pipe is arranged on one side of the preheating box. A water pump is arranged on one side of the outer barrel, a water suction pipe of the water pump extends into the preheating box, a water outlet pipe of the water pump is connected with a coil pipe, the coil pipe is arranged in the inner barrel, and a plurality of atomizing nozzles are arranged on the lower portion of the coil pipe. Waste heat of the inner cylinder of the drying tower is used for preheating waste water in the preheating box, the spraying temperature of the desulfurization waste water is increased, the drying efficiency of the desulfurization waste water is improved, the utilization rate of flue gas heat is improved, and the energy consumption of system operation is reduced.

This utility model discloses a foldable electric stubble trimmer, belonging to the field of agricultural and livestock machinery. It includes a main frame with two symmetrical longitudinal beams and a main ground wheel below. A short beam is connected to the upper rear of the longitudinal beams via a rear pin and a front pin. A sub-frame is hinged to the outer side of the short beam. The sub-frame has casters below and a liftable motor frame above, with several motors arranged horizontally on the motor frame. A wire rope trimming head is installed at the lower end of the motor shaft. A generator provides power to the main frame. The sub-frame can be folded 90° and secured with a locking pin. This device has a compact structure, is portable, has high efficiency for wide-area operation, can follow contours and adjust the stubble height, reducing damage to pastures caused by trampling.

The present application belongs to the technical field of oily wastewater treatment equipment, and particularly relates to a combined filter and oil removal equipment for oily wastewater treatment. The equipment comprises coalescing filter cartridges and modified quartz sand fillings arranged in the coalescing filter cartridges, and combines a traditional filling filter with a filter cartridge type coalescing oil removal device to form a structure of 'fillings in filter cartridges'. The present application disperses the filter fillings in the coalescing filter cartridges, effectively avoids the problem of hardening of large filling slabs, improves the stability and service life of the system, and has the functions of efficient oil removal and filtration of suspended solids. The equipment has compact structure, small volume and stable operation, can significantly improve the filtration efficiency and reduce the maintenance frequency, and is suitable for oily wastewater treatment systems with large water quality fluctuations.

This utility model relates to the technical field of deep-root solid fertilizer application devices for roadside trees, and in particular to a deep-root solid fertilizer application device for roadside trees, comprising a controller, a device housing, a solid fertilizer storage bin, a ditching and mixing mechanism, and a backfilling and compaction mechanism; the controller is electrically connected to the solid fertilizer storage bin, the ditching and mixing mechanism, and the backfilling and compaction mechanism; the device housing contains a solid fertilizer storage bin, a ditching and mixing mechanism at the bottom, backfilling and compaction mechanisms on the front and rear sides, and a push rod on the left side; the controller is mounted on the push rod; the solid fertilizer storage bin is connected to the ditching and mixing mechanism, which includes a guide hole drilling component and a fertilizer discharge component. This utility model, taking into account the small size of roadside tree pits, the need for on-site hardening, and the high density of the soil, meets the practical needs of simple on-site operation, time and labor saving, and low investment, achieving the effects of precise fertilization, deep fertilization, automated backfilling and compaction, and modular and convenient operation.

The invention relates to the technical field of water treatment, and discloses an intelligent response type mine wastewater treatment system which comprises a physical treatment subsystem and a control subsystem. The control subsystem calculates a normalized effective contact efficiency factor and a fluid drag strength factor based on the collected fluid flux and source frequency data. The calculation module adjusts the mechanical shear power of the mixing unit according to the effective contact efficiency factor, and keeps the Damkler number in the reaction system constant so as to compensate the contact time loss; and adjusting the excitation current of the separation unit according to the fluid drag strength factor, constructing a dynamic magnetic field gradient balanced with a fluid drag force vector, and executing pre-excitation when an impact precursor is identified. When the fluid drag strength exceeds a physical limit, the system controls the dosing interface to perform supersaturated dosing. Through cooperative regulation and control of a multi-dimensional physical field and chemical potential energy, rapid response and stable treatment of the unsteady hydraulic load are achieved.

This invention discloses a high-temperature molten slag granulation system coupled with cyclone heat exchange and water mist, including a granulation chamber, a high-temperature molten slag transition device disposed at the top of the granulation chamber, a granulation disc disposed inside the granulation chamber and below the high-temperature molten slag transition device, and a transmission shaft and motor for driving the rotation of the granulation disc. A slag outlet is provided at the bottom of the granulation chamber, and multiple spray nozzles are evenly arranged circumferentially on the upper part of the inner side wall of the granulation chamber. At least four tangential high-pressure air inlets are provided circumferentially below the spray nozzles on the side wall of the granulation chamber, each high-pressure air inlet being connected to a high-pressure blower. An arc-shaped guide baffle is provided on the inner side of each high-pressure air inlet. The system of this invention has a compact structure and no additional moving parts. It can adapt to different working conditions such as blast furnace slag and steel slag by only adjusting the air pressure and water volume, and has broad industrial application value.

The utility model discloses a fluent unloading volumetric feeder, including the weighing base, the upper surface of weighing base is fixedly connected with screw housing pipe and drive box respectively, the inboard rotation of screw housing pipe is connected with two symmetrical settings feed screw, the upper surface fixed communication of screw housing pipe has hopper assembly, and the side fixed communication of screw housing pipe away from drive box has the unloading pipe, the hopper assembly includes hemispherical unloading hopper, spherical inner hopper, storage hopper and top cover, and the inside rotation of drive box is connected with the stirring rod that penetrates to the inboard of spherical inner hopper. Through swing mechanism work, can make spherical inner hopper reciprocating swing, thereby effectively avoided the powder adhesion in storage hopper, cooperate stirring rod rotation, effectively avoided the powder adhesion in spherical inner hopper inner wall, thereby for the powder smooth from hopper assembly into screw housing pipe provided the convenience, realized fluent unloading, avoided the powder waste and the later stage manual cleaning.

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.

The utility model relates to the technical field of sewage treatment, and discloses a high-concentration wine brewing wastewater treatment system which comprises a hydrolysis acidification tank, a primary anaerobic tank, a secondary anaerobic tank and a vertical flow sedimentation tank which are sequentially connected through a sewage pipeline, the system further comprises a biogas collection and storage device, the biogas collection and storage device is movably arranged at the top of the second-stage anaerobic tank, and the first-stage anaerobic tank and the second-stage anaerobic tank are communicated with the biogas collection and storage device through biogas pipelines respectively. The vertical flow sedimentation tank is also communicated with an anaerobic sludge return pipeline; and the anaerobic sludge return pipeline is communicated with the first-stage anaerobic jar and the second-stage anaerobic jar. According to the system disclosed by the utility model, the impact of acid wine-making wastewater on anaerobic sludge can be avoided; the first-stage anaerobic tank and the second-stage anaerobic tank are adopted for anaerobic fermentation, the degradation efficiency of high-concentration organic matter is improved, the vertical flow sedimentation tank is arranged behind the second-stage anaerobic tank, anaerobic sludge is settled, part of anaerobic sludge flows back, anaerobic sludge loss is avoided, a biogas cabinet does not need to be independently arranged for storage, and the occupied space is saved.

This utility model discloses an industrial processing fluid filtration system using the coagulation and diversion principle, comprising a three-compartment water tank, a low-voltage AC particle coagulation device, and a diversion filter cartridge. The three-compartment water tank is divided into a sludge tank, a filtration tank, and a supply tank. The low-voltage AC particle coagulation device includes a cylindrical electrode and an electrical control box. The diversion filter cartridge includes a cylindrical filter, and the interior of the cylindrical filter has a filter element parallel to the axis of the cylindrical filter. The three-compartment water tank, the low-voltage AC particle coagulation device, and the diversion filter cartridge are connected sequentially by water pipes. This industrial processing fluid filtration system using the coagulation and diversion principle is advanced in design, compact in structure, and easy to use. It aggregates fine particles in the processing fluid into larger particles, facilitating subsequent filtration, improving filtration efficiency and accuracy, and preventing excessive deposition and compaction of particles on the filter element surface, thus extending the service life of the filter element and avoiding frequent replacement.

This invention relates to the field of wastewater treatment technology, and in particular to a microfiltration wastewater treatment device for industrial wastewater turbidity removal. The device includes a treatment cylinder and an L-shaped wastewater pipe installed at the top of the treatment cylinder. A swinging filter assembly is installed at the top inner part of the treatment cylinder. The swinging filter assembly shakes and filters the wastewater. The swinging filter cartridge within the swinging filter assembly swings and moves the filtered impurities. During the swinging process, the swinging filter assembly throws out the wastewater while simultaneously causing the filtered impurities to flow. This invention achieves dynamic separation through swinging filtration, combined with real-time self-cleaning via rotating scraping. The filter cartridge is automatically cleaned by a torsional brush assembly. A fixed filter cartridge with a blocking filter assembly effectively blocks filtration and also possesses a self-cleaning function. This allows for the simultaneous and continuous execution of filtration and cleaning processes, significantly improving wastewater turbidity removal efficiency and the stability and durability of the equipment operation.

The invention discloses a soil repair agent based on trace elements of coal gangue and a preparation method thereof, which belongs to the technical field of soil repair agents, and comprises the following steps: mixing dark fermentation strains with beneficial soil bacteria to obtain composite strains, coating the composite strains with starch, and then mixing with a bio-based foaming agent to obtain a composite foaming agent; mixing modified cellulose, a composite foaming agent, coal gangue powder and a gelling agent to obtain a hydrogel, and freeze-drying to obtain a loaded coal gangue particle aerogel; mixing the loaded coal gangue particle aerogel with trace elements, adding peat soil, lignite, vermiculite, and corn stalks for stirring, and drying and packaging to obtain a soil repair agent. The starch-encapsulated strains in the composite foaming agent have better stability and can be better propagated and developed in the soil; the encapsulated hydrogen-producing strains can better complete the dark fermentation reaction, increase the biohydrogen content in the soil, and restore soil fertility.

The present application relates to natural gas desulfurization technical field, specifically said is a kind of petrochemical natural gas desulfurization treatment system;Including tower body and the bottom lateral communication of the tower body is provided with inlet pipe;The top of the tower body is communicated and is provided with outlet pipe;The lateral top, middle and bottom of the tower body are communicated and are provided with feed inlet, auxiliary port and discharge port respectively;The feed inlet, auxiliary port and discharge port are all covered with end cover compatible with the inner wall of tower body;The central vertical of the tower body is provided with rotating shaft;The lower end of the rotating shaft is fixedly connected with lower sleeve;The arc outer wall of the lower sleeve is rotatably and sealingly connected with lower mesh disc;The present application is matched with lower mesh disc by multistage gradient aperture middle mesh disc, realizes the size grading distribution of desulfurization particles from top to bottom, and the gap formed by uniform specification desulfurization particles prevents airflow deflection short circuit, and meanwhile, upper coarse particles can intercept lower fine particles, effectively improve desulfurization efficiency, avoid medicament loss and pipeline dust blockage.

The invention relates to the technical field of steelmaking converter slag treatment equipment, in particular to an anti-blocking sector valve cleaning system and method for a stock bin. Through cooperation of the stock bin electro-hydraulic fan-shaped valve system and the anti-blocking scraper cleaning device, the problems that materials in the stock bin are hardened and discharging is not smooth can be well solved, the failure rate of the stock bin fan-shaped valve is greatly reduced, and powerful guarantee is provided for normal operation of discharging. Meanwhile, the operation intensity of slag removal personnel is greatly reduced, and the manpower, material and financial costs are saved; for field management, water leakage and slag leakage generate great potential safety hazards and are not beneficial to field management, and after water leakage and slag leakage are solved, the potential safety hazards can be better eliminated, and field management work is completed; meanwhile, in the aspect of environmental protection, the method is more beneficial to product recycling and better conforms to the idea of environmental protection.

This utility model relates to the field of coal tar processing technology, specifically to a coal tar hydrogenation reactor, including a reaction tank. A catalyst box is located at the lower end of the reaction tank, and a mixing mechanism is installed inside the reaction tank. The mixing mechanism includes a first rotating rod and a stirring rod. The top end of the first rotating rod is fixedly connected to the output end of a motor. A spiral blade and a baffle plate are fixedly connected to the outer side of the first rotating rod. The motor drives the first rotating rod to rotate the spiral blade and baffle plate above the inside of the reaction tank to initially mix the coal tar and hydrogen. It also drives the stirring rod to rotate inside the catalyst box to stir the catalyst, achieving dynamic gas-liquid mixing, accelerating the dissolution of hydrogen in the coal tar, reducing gas phase residence time, enhancing reactor mixing efficiency, and simultaneously continuously agitating the catalyst to prevent catalyst caking, improve the utilization rate of active sites, and extend catalyst life.