3134results about How to "Reduce clogging" patented technology

The invention discloses a machine vision multifunctional intelligent detection device which comprises a mounting frame, two vertical plates are symmetrically and fixedly connected to the upper end of the mounting frame, two transmission rollers are rotatably connected between the two vertical plates, and an annular conveying belt is jointly wound on the two transmission rollers; the detection mechanism comprises a U-shaped frame fixedly connected to the upper ends of the two vertical plates, a visual detection assembly is installed on the inner top of the U-shaped frame, and an annular lamp matched with the visual detection assembly is installed on the inner top of the U-shaped frame; and the driving mechanism is used for driving one of the transmission rollers to rotate, and the driving mechanism comprises a connecting frame installed on the front side of the front side vertical plate. In the using process of the detection device, dust and dust on the surface of a detected plate can be effectively removed, so that the overall detection quality is improved, in addition, the removed dust and dust can be treated in a centralized mode, and the situation of secondary adhesion is avoided.

The invention discloses an oil pipeline simulation analysis system, relates to the technical field of oil pipelines, and provides accurate data support for subsequent dynamic monitoring and pipeline cleaning decision by constructing a three-dimensional visual model and identifying wax precipitation temperature and deposition risk in time. Through the risk identification module, the system can analyze and calculate the wax precipitation temperature based on the oil product attribute data obtained in real time, and timely judge whether the deposition risk exists in the oil pipeline or not. After receiving a dynamic tracking instruction, the dynamic analysis module can obtain the deposition thickness of each position in a pipeline in real time and analyze the influence of oil temperature and flow velocity changes on deposition distribution, the analysis provides important input data for the pipe cleaning module, the deposition thickness and a heat loss coefficient are fitted through a deep learning technology, and the deposition thickness and the heat loss coefficient are matched with each other. The system may automatically calculate a delivery stability score. When the conveying stability score exceeds a set threshold value, the system can automatically start a pigging measure execution mechanism.

The invention provides an anti-hair loss composition containing cacumen biotae as well as a preparation method and application of the anti-hair loss composition, and belongs to the technical field of biological medicines. The anti-hair loss composition containing cacumen biotae comprises a cacumen biotae extract, a ginseng root extract, an eclipta prostrata extract, a polygonum multiflorum extract, a tea seed extract, a gleditsia sinensis extract, a mulberry bark extract, a cortex dictamni extract, a cnidium monnieri seed extract and a mint extract. All the components have a synergistic effect, and the shampoo has the effects of improving the greasy environment of scalp, preventing grease from blocking hair follicles, reducing the damage of inflammation to the hair follicles, inhibiting the activity of 5 alpha-reductase, improving the color and toughness of hair and the like, relieves alopecia seborrhoeica and achieves an anti-alopecia effect.

The invention discloses a tea leaf crushing device for tea leaf production, and relates to the technical field of tea leaf production, the tea leaf crushing device comprises a barrel, a material box is arranged on one side of the top of the barrel, a positioning rod is fixedly connected to the top of an inner cavity of the barrel, a crushing assembly is arranged at the bottom end of the positioning rod, a driving rod is rotatably connected to the positioning rod, and a discharging assembly is arranged at the bottom end of the driving rod. According to the tea leaf crushing device for tea leaf production, through linkage of the driving gear driven by the servo motor, the gear ring, the self-rotating gear, the crushing cutter and other components, the cutting speed and frequency of the crushing cutter are improved, the cutting path is complex and changeable, hard parts and irregular shapes of tea leaves can be more effectively penetrated, and the tea leaf crushing effect is improved. And the time and energy required by crushing are greatly reduced, and the crushing efficiency is remarkably improved.

The invention belongs to the technical field of tunnel ventilation, and particularly relates to a ventilation device and method for deep-buried extra-long tunnel construction. Comprising a first ventilation square pipe which is vertically arranged, the first ventilation square pipe penetrates through the top of a tunnel and communicates with the exterior of the tunnel, a forward and reverse rotation fan is installed at the end, close to the exterior of the tunnel, of the first ventilation square pipe, and a conical dust outlet is formed in the end, away from the forward and reverse rotation fan, of the first ventilation square pipe; the conical dust outlet is provided and communicated with a dust collection container; filtering and ash removal are circularly carried out, ventilation and exhaust in the tunnel are achieved, and meanwhile the problem that a filter screen needs to be frequently maintained and replaced can be solved; according to the tunnel ventilation and dust removal device, exhaust and dust removal operation is conducted on one side of tunnel construction, the construction working environment is guaranteed, ventilation can be conducted on all positions of a tunnel, and it is guaranteed that fresh air is not polluted during ventilation while efficient dust removal is achieved in a ventilation and exhaust and dust removal separated treatment mode; the blocking probability of the filter screen plate can be reduced.

The invention relates to the technical field of sewage treatment, and provides a black and odorous water body combined treatment device which comprises a filtering kettle, a regulating tank, an anaerobic tank, an aerobic tank, a sedimentation tank and a disinfection tank which are sequentially arranged, a first partition plate is arranged in the filtering kettle, and the interior of the filtering kettle is divided into a first chamber and a second chamber by the first partition plate; the filtering kettle is connected with a water inlet pipe and a drain pipe; a second partition plate is arranged in the second cavity, the second partition plate divides the second cavity into two filtering areas, a filtering plate is arranged in each filtering area, and a communicating opening communicating with the first cavity is formed in the top wall of each filtering area; the first chamber is provided with a switching assembly, and the switching assembly is used for switching the flow direction of the sewage, so that the sewage flows into the corresponding filtering areas through different communication ports. According to the combined treatment device for the black and odorous water body, the possibility of blockage of pipelines and equipment can be reduced. The invention further relates to a combined treatment process for the black and odorous water body.

The invention provides a cowshed sewage treatment dosing device and a using method, and relates to the technical field of sewage treatment.The cowshed sewage treatment dosing device comprises an injection mechanism, a medicament feeding assembly, a mixing mechanism and a stirring assembly, a stand column is welded to the top of a sedimentation tank, and the top of the stand column and the bottom of the injection mechanism are welded into a whole; a sewage injection opening is integrally formed in one end of the injection mechanism, the interior of the injection mechanism is divided into a sewage tank and a medicament tank, the medicament feeding assembly is embedded above the injection mechanism, and a stirring sleeve is mounted at the bottom of the medicament feeding assembly. According to the device, sewage in a flowing state can be linked with a stirring assembly in the agent feeding assembly to rotate, so that the mixing and diluting process of a powdery flocculant is automatically realized, the equipment cost is reduced, the probability that the flocculant is blocked in the agent feeding assembly can be reduced, and the efficiency is improved. The injection mechanism is matched with the mixing mechanism, so that the flocculating agent solution and the sewage can be uniformly and quickly mixed in a flowing state.

The invention discloses an ablation-resistant long-fiber reinforced nylon material for a battery pack, and relates to the technical field of nylon materials, the ablation-resistant long-fiber reinforced nylon material comprises the following raw material components by weight: 60-80 parts of nylon resin powder, 30-50 parts of a long-fiber reinforced material, 10-18 parts of aluminum diethylhypophosphite master batch, 8-15 parts of bromine-antimony composite master batch, 3-7 parts of montmorillonite, 12-20 parts of aluminum hydroxide, and 2-6 parts of nano-silica. The composite material is prepared from the following components in parts by weight: 1-4 parts of carbon nanotubes, 0.5-1.2 parts of an antioxidant I, 0.3-0.8 part of a lubricant I, 2-5 parts of a compatilizer, 0.1-0.4 part of a nucleating agent and 0.2-0.6 part of an anti-ultraviolet agent. By adding the diethyl aluminum hypophosphite master batch, the flame retardant property of the nylon material is improved, the processability of the nylon material is improved, the ablation resistance of the nylon material is improved, and the problems of insufficient flame retardant property, poor processability and poor ablation resistance of the nylon material can be solved.

The invention discloses a denitration catalyst performance detection device, belongs to the field of denitration catalyst detection, and aims to solve the problems that natural floating of flue gas has great uncertainty, sufficient contact between the flue gas and a denitration catalyst is difficult to ensure, a detection result can be known after waiting for a long time, and the detection efficiency is reduced. A denitration catalyst performance detection device comprises a shell, an air inlet pipe communicated with the outer side of the upper portion of the shell and an air outlet communicated with the outer side of the lower portion of the shell, a reciprocating mechanism is arranged above the shell, and a rotating mechanism is arranged above the interior of the shell. Compared with the prior art, the gas can make contact with the denitration catalyst more sufficiently, and therefore the purpose of improving the detection efficiency is achieved.

The invention belongs to the technical field of micro-reaction, and particularly relates to a micro-mixer and a method for continuously preparing nano cooling liquid. Comprising a reaction cavity in which a plurality of reaction flow channels are arranged, all the reaction flow channels are used for preparing nano cooling liquid and are vertically arranged in the reaction cavity in a three-dimensional spiral shape, and each reaction flow channel is internally provided with a plurality of disturbance structures and a plurality of distributors which are arranged in the reaction cavity and located above all the reaction flow channels, each distributor is connected with the inlets of all the reaction flow channels, the collectors are arranged at the outlets of all the reaction flow channels, and pressure regulating structures are arranged in the collectors. According to the invention, the distributor is adopted to enable the reaction fluid to flow into the corresponding reaction flow channel, the three-dimensional spiral flow channel design in the reaction cavity is folded in space, so that the overall size of the microreactor is not too large, and a disturbance structure is arranged in each reaction flow channel, so that the mixing efficiency can be further improved; the production rate of the microreactor is improved, and blockage in a flow channel is avoided.

The utility model relates to the technical field of medical instruments, in particular to a plasma operation electrode tool bit which aims at solving the problem that a plasma operation electrode suction channel in the prior art is prone to being blocked and comprises an insulating base, and the insulating base is provided with an end face and a suction channel penetrating through the end face. The first electrode wires are provided with sinking sections, and the sinking sections are located in the suction channel. According to the scheme, the first electrode wire sinking section is creatively arranged at the inlet, and after the first electrode wire is powered on, tissue at the inlet of the suction channel is cut again under the action of an electric field. Compared with the traditional technical thought that the shielding area of the suction channel is reduced as much as possible, the scheme creatively performs secondary cutting on the blocked tissue by means of the electric field effect, blockage at the inlet of the suction channel is effectively reduced, and normal operation is guaranteed.

The embodiment of the invention provides a spiral conveying device for discharging salt materials, and relates to the technical field of salt material conveying. A spiral conveying device for salt discharging comprises a conveying mechanism, a vibration amplitude adjusting mechanism located at the front end of the conveying mechanism, and a vibration anti-blocking mechanism located at the upper portion of the front end of the conveying mechanism and the rear end of the vibration amplitude adjusting mechanism. The conveying mechanism is lifted upwards to drive the vibration amplitude adjusting mechanism, and the vibration amplitude adjusting mechanism adjusts the vibration amplitude of the vibration anti-blocking mechanism. The vibrating and scattering degree of the salt materials is adjusted according to the lifting height of the conveying cylinder, the problem that the salt materials are caked and accumulated in the feeding hopper in the conveying process can be effectively solved, uniform distribution of the salt materials is promoted, and the stability of the salt materials in the conveying process is improved.

The invention discloses an intelligent automobile path tracking system for urgent danger avoidance, and particularly relates to the technical field of intelligent automobiles, the system comprises an environment sensing module, the output end of the environment sensing module is connected with a danger assessment module, and the output end of the danger assessment module is connected with a path planning module. The output end of the path planning module is connected with a decision planning module, the output end of the decision planning module is connected with a vehicle control module, and the output end of the vehicle control module is connected with a communication and interaction module. Through cooperative work of all the modules, perception of the surrounding environment of the vehicle, danger assessment, path planning, decision making, vehicle control and communication interaction with the outside are achieved, under the dangerous condition, the system can make a response rapidly, effective danger avoiding measures are taken, the driving safety of the vehicle and the accuracy of path tracking are ensured, and the driving safety of the vehicle is improved. And a comprehensive and reliable guarantee is provided for safe driving of the intelligent automobile.

The utility model discloses a dust falling structure for a concentrating machine, which relates to the field of mine machinery, and comprises a box body, a feed hopper is fixedly arranged at the right part of the upper end of the box body, and screening components are fixedly arranged at the bottom positions of the left part and the right part of the inner wall of the box body. According to the dust falling structure for the concentrating machine, ore particles of different sizes can be classified and collected through the screening assembly, the screening effect can be obvious due to the vibration effect of the screening plate, and the possibility that the three screening net areas are blocked can be reduced. And when the sieve plate vibrates, the plurality of shifting plates drive the ore materials to quickly move on the guide plate, so that the area between the lower part of the feeding hopper and the guide plate can be prevented from being blocked. Dust generated in the box body can be absorbed through the dust falling assembly, dust on the two filter plates can be scraped off through the cleaning assembly, and the dust enters the collecting box through the two inclined grooves.

The invention discloses a conveying device for paper product processing and production, and belongs to the technical field of conveying equipment.The conveying device comprises a conveying frame and a conveying belt, the conveying belt is installed at the top of the conveying frame and is in transmission connection between conveying rollers, and a motor is fixedly installed on the outer wall of the conveying frame; a driving gear is fixedly connected to the end of the conveying roller in a sleeving mode, a flow guide plate is fixedly installed on the portion, corresponding to the front end of the conveying belt, of the conveying frame, and a sweeping box is arranged between the flow guide plate and the conveying belt. The conveying device has the advantages that the conveying speed is increased, left-right scraping and shaking operation can be conducted on the brushing and sweeping part, the blocking phenomenon of the brushing and sweeping part in the working process is effectively reduced, meanwhile, paperboard leftover materials attached to the flow guide plate can be conveniently blow-dried and fall off, and the conveying efficiency is further improved.

The invention provides a photovoltaic inverter for a solar photovoltaic module, and belongs to the field of photovoltaic inverters. Comprising a shell, a mounting seat is fixedly connected to the inner surface of the shell, a power module and a control module are fixedly connected to the outer surface of the mounting seat, ventilation grooves are symmetrically formed in the outer surface of the shell, and a dehumidification assembly is arranged on the inner side of the shell and comprises a partition plate fixedly connected with the lower end of the inner surface of the shell; a supporting plate is fixedly connected to the outer surface of the partition plate, a notch is formed in the outer surface of the upper end of the supporting plate, and a baffle is fixedly connected to the inner surface of the shell. Through the arrangement of the moisture removal assembly, air can be in full contact with the moisture absorption plate after entering the shell, moisture in the air can be effectively absorbed, the probability that condensation is formed in the inverter is reduced, the stability and safety of the inverter in the working process can be improved, and meanwhile the service life of the inverter can be effectively prolonged.

The invention discloses a touch-type interactive all-in-one machine, and belongs to the field of interactive all-in-one machines, the touch-type interactive all-in-one machine comprises a machine body, a touch screen is fixedly connected to the outer surface of the upper end of the machine body in an embedded manner, a fixing frame is fixedly connected to the outer surface of the lower end of the machine body, a moisture-proof assembly is arranged on the inner side of the fixing frame, and the moisture-proof assembly comprises a movable part and a sealing part; the movable part comprises an air inlet groove formed in the outer surface of the fixing frame, and a first cavity is formed in the inner side of the fixing frame in an embedded mode. The moisture-proof assembly is arranged, and the air inlet groove is blocked and sealed through the movable plate, so that dust and moisture entering the cavity I can be reduced to a certain extent, and the probability of generating condensation in the cavity I can be reduced; and meanwhile, the probability that metal elements in the interaction all-in-one machine are corroded by moisture can be effectively reduced, so that the service life of the interaction all-in-one machine can be remarkably prolonged, and the adaptability and the working stability of the interaction all-in-one machine are improved.

The invention relates to the technical field of water distributors, in particular to an anti-blocking water distributor for oil field exploitation. The problem that impurities in flowing liquid block a water distributor is solved. The invention relates to an anti-blocking water distributor for oil field exploitation, which comprises the following components: a housing which is provided with a plurality of liquid outlets; the upper joint is mounted on the shell in a threaded manner; the first sleeve is arranged in the shell in a sliding mode and provided with a plurality of liquid guide holes, and the liquid guide holes are formed in an inclined mode; the second sleeve is arranged in the shell in a sliding mode, and the two ends of the second sleeve make contact with the first sleeve and the upper connector respectively; the adjusting mechanism is arranged in the shell and used for adjusting the opening size of the liquid guide hole in the first sleeve through pressure. Liquid is guided to rotate through the liquid guide hole, the phenomenon that impurities in the liquid are attached to the position near the liquid outlet for a long time to cause blockage is reduced, and therefore it is ensured that the device continuously and effectively works.

The invention discloses an SCR denitration ammonia spraying system, and relates to the technical field of SCR denitration, the SCR denitration ammonia spraying system comprises a plurality of ammonia spraying assemblies and a plurality of flow dividing assemblies in one-to-one correspondence with the ammonia spraying assemblies, the ammonia spraying assemblies are installed on a first supporting frame, and the flow dividing assemblies are installed on a second supporting frame. The spraying direction of the ammonia gas is in the same direction as the flowing direction of the flue gas, so that local non-uniformity caused by impact and turbulent flow between two gas flows is avoided, and the mixing effect of the ammonia gas and the flue gas is jointly improved by arranging the plurality of shunting assemblies.

The invention relates to the technical field of coal mine drainage filtering devices, in particular to a drainage filtering device with a self-cleaning function, which comprises a shell, a first filter cartridge, a second filter cartridge, an annular plate and a third filter cartridge, the shell is fixedly arranged, a first cavity and a second cavity are arranged in the shell, the first filter cartridge is fixedly arranged in the shell, and the second filter cartridge is fixedly arranged in the shell; the second cavity is communicated with the first cavity through the first filter cylinder, one end of the second filter cylinder is arranged in the first filter cylinder in a sliding mode, the annular plate is fixedly installed at the end, away from the first filter cylinder, of the second filter cylinder, the annular plate is located in the first cavity, the third filter cylinder is arranged in the second filter cylinder, and one end of the third filter cylinder is fixedly connected with the annular plate. Through cooperative arrangement of the second filter cartridge and the annular plate, water in the first cavity can enter the third filter cartridge through the annular plate, and impurities in the first cavity can flow into the third filter cartridge through the annular plate, so that the blocking degree of the second filter cartridge is reduced, and the water filtering amount of the first filter cartridge and the second filter cartridge is increased.

The invention relates to a preparation method of H12MDA with low trans-trans isomer content and a catalyst used in the preparation method. The catalyst is a supported catalyst and comprises a silicon-aluminum amorphous carrier and an active component, the silicon-aluminum amorphous carrier has a micropore, mesopore and macropore structure and is prepared by carrying out hydrothermal reaction on raw materials comprising an aluminum source and a silicon source in the presence of a template agent, and the template agent is selected from 4, 4-diaminodiphenyl-methane and 2, 4-diaminodiphenyl-methane or 2, 4-diaminodiphenyl-methane or 2, 4-diaminodiphenyl-methane or 2, 4-diaminodiphenyl-methane or 2, 4-diaminodiphenyl-methane or 2, 4-diaminodiphenyl-methane or 2, 4-diaminodiphenyl-methane. The catalyst is one or a combination of two of 1, 4-diaminodiphenylmethane. The catalyst is long in service life and excellent in stability, the yield of an H12MDA target product can be increased, the content of trans-isomers in the product is reduced, and the preparation process is also simple. The invention also provides a method for preparing H12MDA through MDA catalytic hydrogenation, and the method can improve the yield of the H12MDA product and obviously reduce the content of trans-isomers in the product.

The sealing cup is of a cup-shaped structure which is made of a thin-wall plate body and comprises an annular side plate portion and a bottom plate portion, the top of the side plate portion is turned outwards to form an annular groove capable of being assembled to an opening of a certain container, and a first installation hole is formed in the center of the bottom plate portion. A first type of annular pressing groove surrounding the first mounting hole is formed on the first inner surface of the bottom plate part, and a first type of annular bulge is formed at the corresponding position on the first outer surface of the first wrinkle; one or more second-type annular pressing grooves surrounding the first-type annular pressing grooves are formed in the first inner surface of the bottom plate part, and one or more second-type annular protrusions are formed in the corresponding positions of the first outer surface of the bottom plate part. Compared with the most similar prior art, the valve provided by the utility model has the advantages that materials and cost can be saved on the premise of ensuring the sealing performance; leakage caused by long-time storage can be reduced; and blockage caused by repeated use can be reduced.

The invention discloses a double-layer high-precision vibration disc and a screening track thereof. The vibration disc comprises a vibration disc base, a first vibration disc device and a second vibration disc device. The first vibration disc device comprises an inner vibrator, an inner vibration disc and an inner spiral feeding rail. The second vibration disc device comprises an outer vibrator, an outer vibration disc and an outer spiral feeding track; the primary screening efficiency can be improved through the high vibration frequency of the inner vibrator, the workpiece directional conveying and arranging precision can be improved through the low vibration frequency of the outer vibrator, and therefore the feeding precision and reliability are improved; the material screening track comprises a track vibrator, a track supporting base and a material screening conveying device. The material screening and conveying device comprises a first rail mechanism, a second rail mechanism and a third rail mechanism. The device further comprises a first screening channel and a second screening channel. And through different widths of the first screening channel and the second screening channel, fine screening of the workpieces is achieved, and the screening precision and efficiency are improved.

The invention discloses a heading machine capable of synchronously reducing peripheral pollution, and relates to the technical field of heading machine equipment, the heading machine comprises a heading machine main body and a dust collecting pipe fixedly mounted at the top of the heading machine main body, and further comprises a glove box fixedly mounted on one side of the bottom of the dust collecting pipe, and a collecting assembly is arranged in the middle of the interior of the dust collecting pipe; a spraying assembly is arranged on the side, close to the collecting box, of the interior of the dust collecting pipe. The collecting assembly comprises a motor and a rotating shaft, and fan blades and a main gear are sequentially connected to the outer side of the rotating shaft; the spraying assembly comprises mounting blocks which are symmetrically arranged, sliding rods are fixedly connected to the inner sides of the two mounting blocks, and the problems that when a multi-drill-bit heading machine is used, the drilling position is difficult to be completely sealed, dust still escapes all around, and the surrounding environment is polluted are solved; the condition that dust is not completely cleaned still possibly exists, and the dust falling effect of the device is reduced.

The utility model discloses a squat silo multipoint discharging device, which relates to the technical field of bin discharging and comprises a distributing bin arranged at a feeding port above a squat silo, a central blanking pipe is arranged at the bottom of the distributing bin and communicated with a cavity of the distributing bin, and the distributing bin is provided with a discharging port. A discharging port of the center discharging pipe right faces the middle position in the squat silo, the center discharging pipe is used for laying the bottom of the squat silo, a plurality of side elephants are further arranged on the side wall of the material distribution bin in a downward inclined mode around a shaft and communicated with a cavity of the material distribution bin, the free ends of the side elephants extend towards the side wall of the squat silo, and the center discharging pipe is arranged on the side wall of the material distribution bin. A plurality of blanking openings are formed in the side articulated chutes in the length direction, a first pneumatic valve and a second pneumatic valve are arranged at the positions where the center blanking pipe and the side articulated chutes communicate with the distributing bins correspondingly, and the center blanking pipe and the side articulated chutes are used for blanking in a matched mode, so that materials are evenly stacked; and the problems of serious material grading and unbalance loading of the silo wall existing in the original single blanking point are reduced.

The utility model relates to the technical field of silicon carbide production, in particular to a subdivision screening device for silicon carbide production, which comprises a box body, a screening mechanism is arranged in the box body, a roller arranged outside a rotating rod is driven to rotate through a driving mechanism, and internal materials are continuously turned over through rotation of the roller. The filter holes are arranged on the inner wall of the roller so that materials can be conveniently screened through the filter holes, the roller is in an inverted buckling state whenever the filter holes rotate to the highest position in the roller due to the fact that the roller is in a rotating state, the materials on the inner walls of the filter holes are not prone to being attached, and the possibility of blocking is reduced.

The utility model is suitable for the technical field of shavers, and provides a shaver head which comprises a support part and a shaving part, the shaving part is movably arranged at the end of the support part, the support part can be connected with a shaver handle of a shaver, and the shaving part can be attached to a human body to remove hair on the body surface. The shaving part comprises a lower cover, the lower cover is hinged to the end of the support part, side covers are fixedly installed on the two sides of the lower cover, and a pair of fixed cutters is fixedly installed between the two side covers. According to the shaver head provided by the scheme, the problems that a traditional shaver head is short in service life and prone to being blocked are solved, especially due to the use of the metal elastic piece and the connecting piece, stable sliding of the movable cutter is ensured, meanwhile, shaving smoothness is improved, trimming is smoother due to the small tooth space, and the shaving efficiency is improved. The torsion spring serves as the elastic element and provides certain elastic reacting force, interaction between the shaver head and the skin is enhanced, and therefore the shaving comfort and efficiency are improved.

The invention belongs to the technical field of dust separation, and particularly relates to a pulse dust removal device for a feed production line, the pulse dust removal device comprises a dust removal box body and a control cabinet arranged on one side of the dust removal box body, the bottom of the dust removal box body is fixedly communicated with a dust collection hopper assembly, and a dust inlet pipe is inserted into the upper end of the side wall of the dust collection hopper assembly; a plurality of dust filter bag assemblies are arranged in the dust removal box body, and a clean air exhaust pipe is inserted into the upper end of the side wall of the dust removal box body. The device can perform accurate pulse dust removal on the blocked dust filter bag, reduces unnecessary loss, is good in blockage removal timeliness, can delay the blockage process of the filter bag, facilitates feed dust filtration and separation, can guide air flow to be vertically downward during pulse dust removal, prevents secondary blockage of dust as much as possible, and improves the dust removal efficiency. And dust escape can be reduced when the filter bag fails to filter.

The invention relates to the technical field of activated carbon production equipment, and discloses an activated carbon manufacturing raw material crushing and screening device which comprises a machine body serving as a supporting carrier of the whole device. The crushing box is mounted on one side of the top of the machine body; the crushing assembly is mounted in the crushing box and is used for crushing the activated carbon raw material; the efficient grinding assembly is mounted on the inner side of the machine body and used for further grinding the activated carbon raw materials; and the anti-blocking assembly is installed at the joint of the machine body and the smashing box, and it is guaranteed that the smashed raw materials can enter the machine body. Through the efficient grinding assembly and efficient grinding, the size of crushed particles can be better controlled, the particles are more uniform, follow-up screening of the activated carbon is facilitated, the screening effect and precision can be improved, it is guaranteed that raw material particles are small, and the small raw material particles guarantee formation of a pore structure and increase of the surface area of the activated carbon; therefore, the adsorption capacity of a final product is improved, and the overall quality and performance of activated carbon are improved.

The invention discloses a spraying device for grassland ecological soil remediation in the technical field of ecological remediation. The spraying device comprises a vehicle body, a storage assembly is installed at the top end of the vehicle body, a lifting cavity is formed in the vehicle body, a lifting assembly is arranged in the lifting cavity, a supporting plate is fixedly connected to the bottom of the lifting assembly, and a plurality of spraying assemblies are linearly arrayed at the bottom of the supporting plate; a pump assembly is arranged in the vehicle body; the spraying assembly and the storage assembly are both communicated with the pump assembly; and each spraying assembly comprises a rotating hole column fixedly connected to the bottom of the supporting plate, a spraying ring is annularly arranged on the surface of each rotating hole column, a plurality of spraying openings communicating with the storage assembly are formed in the bottom of each spraying ring, and a plurality of injection assemblies are arranged in each rotating hole column. Through cooperative assistance of the lifting assembly, the spraying assembly and the injection assembly, when the grassland surface soil is hard, spraying remediation can be conducted on the grassland soil surface, meanwhile, injection of liquid medicine can be completed by going deep into the grassland soil, and the ecological remediation effect of the grassland soil is improved.