43results about How to "Ease of recycling" patented technology

The invention discloses a hydraulic hybrid power system of an excavator, which is connected with a hydraulic rotary motor of the excavator and comprises a variable pump I, a variable pump II, a non-return valve, change valves, an accumulator and shuttle valves, wherein the variable pump I and the variable pump II are reversely connected; two ends of the shuttle valves are connected with the oil inlet and the oil outlet of the rotary motor; the variable pump I and the variable pump II are respectively connected with the two shuttle valves through the change valves; the accumulator is connected with one change valve; and the variable pump II is connected with the accumulator through the non-return valve. The hydraulic hybrid power system can effectively absorb the energy generated when the excavator carries out revolving breaking and release the energy when the excavator rotates reversely, thereby realizing the purpose of recycling the energy, simultaneously protecting hydraulic systems and elements, avoiding hydraulic impact and overflow heating, and prolonging the service lives of hydraulic elements and mechanical parts.

The invention provides a tin-lead recovery method in a waste circuit board. The method comprises the following steps of: wet-stripping electronic components on a waste circuit board, carrying out classified deposition and recovery of tin and lead in the waste circuit board, and reusing waste gas and waste liquid generated in the recovery process into the recovery process. The method can effectively prevent the pollution of waste acid, waste gas and waste metal generated in the recovery process of the waste circuit board, improve environment quality of a centralized recovery area and reduce thecost of pollution control in the recovery process.

The invention relates to hierarchical titanium dioxide microspheres based on surface oriented growth nano-rods and a preparation method thereof. The hierarchical titanium dioxide microspheres are three-dimensional microspheres formed by a cluster of one-dimensional nano-rods which own a common core and grow uniformly and outwards in a radiation manner along the core. The preparation method comprises the following main steps of: adding a titanium precursor in a polycondensation reaction process of resorcinol-formaldehyde, then preparing organic gel in a sol-gel process, and finally carrying out high-temperature carbonization to obtain the titanium dioxide nano-rod microspheres with hierarchical structures. The hierarchical titanium dioxide microspheres based on the surface oriented growth nano-rods, prepared by the method, have a good adsorption performance and a good pollutant photocatalytic degradation performance; and after being used, the hierarchical titanium dioxide microspheres based on the surface oriented growth nano-rods are separated from water simply and conveniently, thus easily realizing the recycling and reusing of photocatalytic materials. In addition, the preparation method is simple in technology, the mass production is easily realized by adopting the preparation method, the appearance and size of the products are controllable, and the products are high in crystalline of degree and conform to practical production application requirements.

The invention relates to a utility fluid, such as a fluid containing aromatic and non- aromatic ringed molecules, useful as a diluent when hydroprocessing pyrolysis tar, such as steam cracker tar. The specified utility fluid comprises >= 10.0 wt% aromatic and non- aromatic ring compounds and each of the following: (a) >= 1.0 wt% of 1.0 ring class compounds; (b) >= 5.0 wt% of 1.5 ring class compounds; (c) >= 5.0 wt% of 2.0 ring class compounds; and (d) <= 0.1 wt% of 5.0 ring class compounds. The invention also relates to methods for producing such a utility fluid and to processes for hydroprocessing pyrolysis tar.

The invention discloses a middle air supply type cyclic edible fungi drying device which comprises an enclosure structure, a drying region, an air processing device and a main air supply pipe arranged on the left side of the enclosure structure. Vertically-arranged air supply non-uniform pore plates and air return non-uniform pore plates divide the space under the air processing device into the main air supply pipe, the drying region and a main air return pipe in the air flow direction, and the air processing device is communicated with the drying region through the main air supply pipe. A group of air supply holes and a group of air return holes are formed in the left side and the right side of each layer of arrangement plates arranged in the drying region. The middle air supply type cyclic edible fungi drying device improves drying air flow distribution through drying-face middle air supply, ensures that air flows at the drying-face position are uniform and stable, drying efficiency is improved, and energy consumption is reduced.

The invention discloses a magnetic Ce / N co-doped TiO2 / diatomite composite material photocatalyst, which is based on a preparation process of N-doped composite powder, wherein cerium nitrate hexahydrate is selected as a Ce source, diatomite refined soil is adopted as a carrier, and NiFe2O4 nanoparticles with superparamagnetism are loaded on the surface of the catalyst by a sol-gel method. The doping modification of the rare earth element Ce is introduced into the TiO2, so that the visible light utilization rate of the TiO2 / diatomite composite powder and the separation efficiency of photo-generated electron hole pairs are improved, and the composite material shows excellent photocatalytic performance; due to the introduction of the nickel ferrite, the catalyst has magnetism, so that the recovery capacity of the catalyst is improved, and the catalyst has a wide prospect in the application of treating hard-degradation organic pollutants contained in soil in a high-pollution area.

The invention discloses an intelligent AMT gearbox which mainly utilizes the prior AMT gearbox and arranges a planetary gear transmission system between a friction clutch and an engine crankshaft. The planetary gear transmission system mainly comprises a central gear, a planetary pinion carrier and a gear ring, wherein the central gear is coaxially connected with a driving friction plate, the planetary pinion carrier is coaxially connected with the crankshaft, the gear ring is meshed with a planetary gear, an a motor is arranged on the outer side of the gear ring, the motor shaft is provided with a motor gear meshed with the gear ring, and the rotating shaft of the central gear is provided with a locking mechanism. The gearbox also comprises a gearbox control unit TCU, an engine control unit (ECU), a motor control device, an engine speed sensor and a clutch speed sensor. While starting the gearbox, the motor is utilized to directly start the engine, thus omitting the traditional starter; and while in gear-shifting, the rotating speed of the motor is controlled to finally enable the rotating speed of the driving friction plate to be consistent with the rotating speed of the driven friction plate, thereby achieving the goal of stable gear shifting. The invention is suitable for high-grade and medium-grade sedans.

The invention belongs to the technical field of dust removal devices, and discloses an intelligent electric automatic dust removal device, which comprises a control device, a device shell and an air inlet assembly connected to the air inlet end of the device shell, wherein a partition plate is arranged in the device shell, and divides the interior of the device shell into two treatment cavities, the control device is installed in any one treatment cavity, a first filtering screen is mounted in one treatment cavity, a first air outlet pipe is mounted in the other treatment cavity, a water tankis mounted below the first air outlet pipe, and the first air outlet pipe and the air inlet assembly are each provided with a detection device. Based on the arrangement of the detection device, the air inlet dust content and the air outlet dust content of the dust removal device are effectively detected, it is judged that the first filtering screen is damaged if the air outlet dust content is higher than a preset value, and at the moment, the air outlet direction of the dust removal device is adjusted to enter the water tank so as to carry out secondary dust removal, so that the pretreatment dust removal effect of the dust removal device is guaranteed.

The invention discloses a four-wheel-drive electric automobile transmission system. The four-wheel-drive electric automobile transmission system comprises a power battery, wherein a first output end of the power battery is connected with a control unit; a second output end of the power battery is connected with a DC / DC converter; an output end of the DC / DC converter is connected with an auxiliary storage battery; an output end of the auxiliary storage battery is connected with the control unit through an ignition switch; an input end of the control unit is further separately connected with a steering wheel angle sensor, an accelerator pedal position sensor, a gear switch, a brake switch and an automobile speed sensor; the steering wheel angle sensor provides the steering wheel rotating direction and angle for the control unit; by the accelerator pedal position sensor, whether the accelerator pedal is trampled or not is determined and a trampling degree signal is provided; the gear switch provides gear information for the control unit; the brake switch provides brake signals for the control unit during braking; the automobile speed sensor provides automobile speed signals for the control unit; and the output end of the control unit is connected with a hub motor and a rear drive motor. Various drive modes including rear drive, four-wheel drive and the like can be realized so as to meet requirements of different road running conditions. Energy can be recycled conveniently, and the economy of an automobile is improved.

The invention discloses a hydraulic hybrid power system of an excavator. The hydraulic hybrid power system of the excavator is connected with a hydraulic rotary motor of the excavator and comprises a variable pump I, a variable pump II, a one-way valve, reversing valves, an energy accumulator and shuttle valves, wherein the variable pump I and the variable pump II are connected back to back, the two ends of each shuttle valve are connected with an oil inlet and an oil outlet of the rotary motor, the variable pump I and the variable pump II are connected with the two shuttle valves respectively through the reversing valves, the energy accumulator is connected with one reversing valve, and the variable pump II is connected with the energy accumulator through the one-way valve. The hydraulic hybrid power system of the excavator can effectively absorb the energy generated in the rotary braking process of the excavator, and release the energy in the reverse rotation process of the excavator, thereby achieving recovery of energy. Meanwhile, the hydraulic hybrid power system of the excavator protects a hydraulic system and elements, avoids hydraulic impact and overflowing heat radiation, and prolongs the service life of hydraulic elements and mechanical parts.

The invention discloses a drying surface parallel air supply type domestic fungus heat pump drying apparatus. The apparatus comprises an enclosing structure, a variable cross section air supply static pressure space, a drying area, a variable cross section air return static pressure space, an air treatment device, and an air supply main tube arranged at the upper portion of the enclosing structure, an air supply non-uniform orifice plate and an air return non-uniform orifice plate which are vertically arranged divide a space below the air supply main tube into the variable cross section air supply static pressure space, the drying area and the variable cross section air return static pressure space which are sequentially arranged along the airflow direction, and the air treatment device is arranged at the outer side of the variable cross section air supply static pressure space; and a group of air supply holes and a group of air return holes are arranged above each of layers of storage plates arranged in the drying area. Drying surface parallel air supply is adopted to improve the drying airflow distribution, so the uniformity and the stability of airflow in the drying surface are guaranteed, the drying efficiency is improved, and energy consumption is reduced.

The invention provides a sealing assembly for a carbon powder box as well as the carbon powder box and a recycling method thereof. The sealing assembly is arranged at one end, close to a sealing filmpulling outlet, of a developing roller; a sealing and fixing guide sheet is inserted in the sealing assembly; the sealing and fixing guide sheet is fixedly arranged above a groove in the surface of apowder bin, so that a gap is formed between the sealing and fixing guide sheet and the sealing assembly far away from one side of the developing roller, and a sealing film penetrates out of the gap and is guided to the outside of the sealing film pulling outlet opposite to the gap. By means of the sealing assembly, the sealing assembly can be prevented from being pulled out when the sealing film is pulled, so that a supporting effect of the sealing assembly on the developing roller is stabilized, and the carbon powder in the powder bin is further prevented from leaking out of the sealing assembly. The carbon powder box with the sealing assembly is recycled, and a process of rearranging the sealing film on an opening of the powder bin is simple to operate, so that the carbon powder box canbe recycled and manufactured again conveniently.

The invention belongs to the technical field of biogas production, and discloses a method and equipment for producing biogas through anaerobic fermentation of biomass. The equipment includes a fermentation tank; a screw feeding device and a gas-liquid separator are installed on the top of the fermentation tank, and a dehydration discharging device is installed at the bottom; a heating material-guiding base and a multi-angle agitator are successively installed inside the fermentation tank from bottom to top; the top of the multi-angle agitator is successively connected to a decelerator and an agitator motor; and the decelerator and the agitator motor are fixed between the screw feeding device and the gas-liquid separator on the top of the fermentation tank. Thus, based on the arrangement ofthe multi-angle agitator, continuous stirring without dead angles can be carried out during overall anaerobic fermentation, so that raw materials in the fermentation tank can be fully mixed, and phenomenon such as sediment and scum during fermentation can be effectively avoided; and therefore, the conversion efficiency of biogas and the stability of the overall operation of the equipment can be enhanced, and the problems of equipment blocking can be avoided as well.

The invention discloses a wheel hub motor distributed time-sharing four-wheel drive electric vehicle chassis configuration, a four-wheel drive electric vehicle and a control method. The wheel hub motor distributed time-sharing four-wheel drive electric vehicle chassis configuration comprises a frame assembly, wherein the frame assembly is provided with a first tire rim assembly, a second tire rimassembly, a centralized motor, a power battery pack, a vehicle controller, a high voltage power distribution box, hub motors and a radiator assembly. The first tire rim assembly is in transmission connection to the centralized motor through a drive shaft and a transmission, and the hub motors are mounted on the second tire rim assembly. A charging machine is electrically connected with the high-voltage power distribution box, and the high-voltage power distribution box is electrically connected with input ends of the vehicle controller and the power battery pack. The vehicle controller is electrically connected with the hub motors, and an output end of the power battery pack is separately connected to the centralized motor and the hub motors through an inverter. The inverter is electrically connected to the high voltage power distribution box. According to the invention, power demands by different driving conditions can be met, and the transmission efficiency is high.

The invention discloses an intelligent forging production device for automobile parts, and relates to the technical field of intelligent machining equipment. The intelligent forging production devicecomprises a forging table, a quenching box is arranged at one end of the forging table, a vent pipe is connected to the top end of the quenching box, a recycling box is connected to the end, away fromthe quenching box, of the vent pipe, and a lifting door is mounted at one end of the quenching box. A second motor is rotationally connected with a fan blade shaft through a rotating shaft, the second motor drives the fan blade shaft to rotate to attract water vapor in the quenching box into a recycling box, a third motor drives a rotating disc to rotate through a third rotating shaft, the rotating disc drives a rack disc to rotate through a convex edge on the surface of the rotating disc, then the rack disc drives a piston rod to reciprocate, the flowing of water vapor is accelerated, so that the water vapor makes full contact with a steel pipe, the water vapor is accelerated to be condensed into water, then the water flows out through a water outlet pipe at one end of the recycling box,therefore, the recycling of water resources is facilitated, and the problem of water resource waste is solved.

The invention discloses a circulating feeding device for air spring production. The circulating feeding device for air spring production comprises a base, an inclined plate is fixedly mounted on the left side of the outer surface of the upper end of the base, a hopper is arranged on one side of the outer surface of the upper end of the inclined plate, an auxiliary mechanism is fixedly mounted on the outer surface of one side of the hopper, a rotating table top is fixedly mounted on the right side of the outer surface of the upper end of the base, a circulating feeding mechanism is arranged at the lower part of the rotating table top, a collecting box is fixedly mounted on the outer surface of the right side of the base, and a protective door is arranged on the outer surface of the front end of the base. According to the circulating feeding device for air spring production, the arranged auxiliary mechanism is convenient for people to control the discharging amount; an arranged protective side plate and an arranged baffle play a certain limiting role; the arranged circulating feeding mechanism facilitates machining and is high in efficiency; and after a piston rod main body in a first limiting groove is machined and is taken off, the piston rod main body is put into the collecting box arranged on one side of the base, so that collection is convenient, and a better use prospect is brought.

The invention relates to the technical field of waste heat recovery, in particular to a high-efficiency heat exchanger capable of realizing flue gas waste heat recovery. The high-efficiency heat exchanger comprises a heat exchange box and a supporting platform used for fixing the heat exchange box and further comprises a water conveying mechanism and a smoke inlet mechanism; the water conveying mechanism is located on the heat exchange box; the water conveying mechanism comprises an adjusting assembly and a heat exchange assembly, the adjusting assembly comprises a flow adjusting pipe and an adjusting piece, the flow adjusting pipe is rotationally connected with the adjusting piece, and the heat exchange assembly comprises a heat exchange piece; the smoke inlet mechanism is connected with the heat exchange box and the water conveying mechanism; the smoke inlet mechanism comprises a blocking assembly and a control assembly, the control assembly comprises a flow dividing pipe and a control box, a lifting plate is installed in the control box in a sealed and sliding mode, and a sensitive piece is further installed in the control box. According to the high-efficiency heat exchanger capable of realizing flue gas waste heat recovery, heat in flue gas can be fully absorbed, the heat exchange effect and efficiency are improved, the energy loss and waste are reduced, and convenience is brought to a user.

The invention provides a feeding device for electric coating production, and relates to the technical field of coating production. The feeding device for electric coating production comprises a material conveying channel, a material inlet is formed in the top end of the material conveying channel, two material guiding openings are evenly formed in the side, away from the material inlet, of the bottom end of the material conveying channel, and a screen is arranged on the inner side of one material guiding opening. A first hydraulic push rod pushes a connecting frame to enable a rotating plate to rotate downwards and abut against the side wall of a limiting frame, then a second hydraulic push rod pulls the limiting frame, large-particle materials of the rotating plate are pushed into a second material guide pipe, and the situation that the large-particle materials stop small-particle materials from falling into the inner side of production equipment is avoided; and large-particle materials are ground through the first grinding roller and the second grinding roller so that the materials can be dissolved more rapidly, then the ground materials are guided into the inner side of the first material guide pipe and finally fall into production equipment, recycling of the large-particle materials is achieved, and waste of the materials is avoided.

The invention discloses an external protection device for chip silicon production and a using method of the external protection device. The device comprises a top plate, wherein a fixing frame is integrally arranged on the bottom surface of the top plate, the two outer sides of the fixed frame are respectively connected with a guide plate, a guide hole is formed in the surface of the guide plate in a penetrating mode, a lifting frame is arranged on the outer side of the fixing frame in a sleeved mode, a guide column is installed on the upper surface of the bearing plate, a compression spring sleeves the outer side of the guide column, the upper end of the guide column penetrates through the guide hole and is connected with a connecting plate, the bottom surface of the connecting plate is connected with a lifting column, the bottom end of the lifting column extends into the fixed frame and is connected with an elastic telescopic rod, and a scraper plate is arranged at the telescopic endof the elastic telescopic rod. The device has the beneficial effects that the bearing plate is pressed by the pressing spring, so that the bearing plate is driven by the guide column, the connectingplate and the lifting column to descend, the inner wall of the fixed frame is scraped by the scraper, and manual scraping is not needed, so that the mortar can be recycled.

The invention discloses a method for preparing a D-biotin bromide intermediate. The method comprises: S1) carrying out a reaction on a compound 3 and a 1-bromo-3-methoxypropane magnesium bromide Grignard reagent to obtain a compound 4; S2) carrying out a reflux dewatering reaction on the compound 4 under the action of p-toluenesulfonic acid to obtain a compound 5; S3) carrying out a hydrogenationreaction on the compound 5 to obtain a compound 6; and S4) carrying out a cyclization reaction on the compound 6 to obtain a bromide intermediate. According to the present invention, the 1-bromo-3-methoxypropane magnesium bromide Grignard reagent is prepared through self-initiation; the method has advantages of mild reaction conditions, simple and safe operation, easy large-scale production and the like; and with the method, the total molar yield of the four steps can achieve more than 75%, the product purity is up to more than 98%, and the inexpensive and easily-available palladium carbon catalyst can be used in the hydrogenation reaction and can be recycled.

The invention relates to the technical field of machines and provides a fresh air purification system with a constant humidity mechanism. The fresh air purification system comprises a fresh air purifying machine. The fresh air purifying machine comprises a shell. The shell is a first air inlet for guiding fresh air in, a second air inlet used for guiding return air in and an air outlet. The shellis internally provided with an air supply channel communicating with the first air inlet, the second air inlet and the air outlet. The fresh air purification system further comprises an air quality adjusting system. The air quality adjusting system comprises an indoor humidity sensor used for detecting the indoor humidity, a control system and the constant humidity mechanism. The constant humiditymechanism is internally provided with an air flow channel. A dehumidifying device and a humidifying device are sequentially arranged in the air flow channel from front to back in the flow guide direction. A temperature sensor is connected with the control system. The control system controls the humidifying device and the dehumidifying device. The constant humidity mechanism is additionally arranged in the fresh air purification system so that the operation conditions of the dehumidifying device and the humidifying device can be adjusted according to the indoor humidity, and then it is guaranteed that the indoor humidity keeps constant.

The invention discloses a drying surface parallel air supply type domestic fungus heat pump drying apparatus. The apparatus comprises an enclosing structure, a variable cross section air supply static pressure space, a drying area, a variable cross section air return static pressure space, an air treatment device, and an air supply main tube arranged at the upper portion of the enclosing structure, an air supply non-uniform orifice plate and an air return non-uniform orifice plate which are vertically arranged divide a space below the air supply main tube into the variable cross section air supply static pressure space, the drying area and the variable cross section air return static pressure space which are sequentially arranged along the airflow direction, and the air treatment device is arranged at the outer side of the variable cross section air supply static pressure space; and a group of air supply holes and a group of air return holes are arranged above each of layers of storage plates arranged in the drying area. Drying surface parallel air supply is adopted to improve the drying airflow distribution, so the uniformity and the stability of airflow in the drying surface are guaranteed, the drying efficiency is improved, and energy consumption is reduced.

The invention discloses a water cooling system with a uniform cooling effect for aluminum ingot production, and relates to the technical field of aluminum ingot production. The water cooling system comprises a cooling tank, a water storage tank, a cooling-water machine, a first water pump, a circulating pipeline, a second water pump and a water conveying pipeline. The water temperature is adjusted through the cooling-water machine, intake water is sent into the water storage tank after the temperature of the intake water is controlled to be the set temperature, cooling water in the water storage tank can be rapidly cooled, and the temperature is constant; a monitoring module is used for monitoring and analyzing the working environment information in the cooling box to obtain a cooling coefficient; a controller automatically acquires a corresponding preset cooling scheme according to the cooling coefficient and controls a sprayer to control cooling water to flow out according to the corresponding preset cooling scheme, so that the cooling effect is improved; and by arranging the first water pump and the circulating pipeline, cooling water used in the cooling box can be conveniently pumped out and guided into the water storage tank to be collected, so that cyclic utilization treatment is facilitated, and the utilization rate of a water source is increased.

The invention relates to a steam thermal cycle sludge drying method and system, wherein the method comprises the following steps of: (1) preheating sludge; (2) exchanging heat and drying the sludge from the step (1) by adopting steam as a heat source gas; (3) cooling and discharging the sludge from the step (2). The system comprises a preheating feeding device, a drying device, a technology cycle gas recycling device and a cooling and discharging device; the drying device comprises an evaporation chamber and a drying chamber which are sequentially connected; a sludge outlet of the preheating feeding device is connected with a sludge inlet of the drying device; a recycling steam outlet of the drying device is connected with a steam inlet of the technology cycle gas recycling device through a pipeline; the drying device is provided with a heat source gas inlet; and the heat source gas inlet of the drying device is connected with a steam outlet of the technology cycle gas recycling device through a heat source pipeline. According to the invention, energy source recycling measures are adopted, and the steam thermal cycle sludge drying method and system has the advantages of high evaporation efficiency, low cost, low energy consumption and the like.

The invention discloses a backflow type sewage treatment reactor based on a catalytic reaction mechanism, and relates to the technical field of sewage treatment. The backflow type sewage treatment reactor comprises a base, wherein a reaction tank is fixed on the upper surface of the base, a rotary catalysis device rotationally matched with the reaction tank is arranged in the reaction tank, the outer portion of the reaction tank is communicated and connected with a backflow warmer sleeved on the reaction tank, a backflow pipe connected with the rotary catalysis device is fixed at the upper end portion of the backflow warmer, two heat transfer assemblies are symmetrically arranged on the upper surface of the base, the backflow warmer is in clearance fit with the heat transfer assemblies, and two heat supply devices are symmetrically arranged on the upper surface of the base and attached to the heat transfer assemblies. According to the present invention, with the design of the backflow warmer, the backflow pipe, the supercharger, the backflow assembly, the heat transfer assembly and the heat supply device, the heating of the sewage in the backflow warmer can be achieved, and the backflow type heating of the sewage in the reaction tank is achieved through the loop formed by the reaction tank, the backflow warmer, the backflow pipe and the backflow assembly, so that the sewage heating uniformity is substantially improved.

The invention provides a sealing assembly for a toner box, the toner box and a recovery method thereof. By setting the sealing assembly at the end of the developing roller close to the sealing film pulling outlet, a sealing and fixing guide piece is inserted in the sealing assembly, and the sealing and fixing guide piece is fixed above the groove on the surface of the powder bin, so that the sealing and fixing guide piece is far away from the developing roller. A slit is formed between the sealing components on one side, allowing the sealing film to pass through the slit and lead to the exit of the sealing film pulling out opposite to the slit. Utilizing the sealing assembly can ensure that the sealing assembly is not pulled out when the sealing film is pulled, thereby stabilizing the supporting function of the sealing assembly on the developing roller, and further preventing the toner in the powder chamber from leaking from the position of the sealing assembly. When recovering the toner cartridge with the sealing assembly, the process of resetting the sealing film at the mouth of the powder bin is simple and convenient, which facilitates the recycling and manufacturing of the toner cartridge.

The invention discloses a manipulator for processing marine ladders, and relates to the technical field of manipulators. The present invention comprises a conveyor belt, on which pipes are placed, and a mounting base is installed on one side of the conveyor belt, a base is fixedly installed on the mounting base, a telescopic arm is connected to the base, and the telescopic arm A connecting plate is installed on the other end of the connecting plate, and a drilling device is installed on the connecting plate, and the drilling device is located directly above the pipe. In the present invention, the pipe is transported to the lower side of the drilling device through the conveyor belt and drilled by the installed drilling device, thereby reducing the use of manpower.

The invention discloses a hydraulic hybrid power system of an excavator, which is connected with the hydraulic rotary motor of the excavator. The two ends of the shuttle valve are connected to the oil inlet and outlet of the rotary motor. The variable pump I and the variable pump II are respectively connected to two shuttle valves through the reversing valve, the accumulator is connected to a reversing valve, and the variable pump II is connected to the one-way valve. Connect to the accumulator. It can effectively absorb the energy when the excavator turns and brake, and release it when the excavator rotates in reverse, so as to achieve energy recovery and utilization, protect the hydraulic system and components, avoid hydraulic shock and overflow heat, and improve the performance. The service life of hydraulic components and mechanical parts.

The invention belongs to the technical field of dust removal devices, and discloses an intelligent electric automatic dust removal device, which includes a control device, a device housing, and an air intake assembly connected to the air inlet end of the device housing, and a partition is arranged inside the device housing , and thus separate the inside of the device housing to form two processing chambers, and the control device is installed in any of the processing chambers; one of the processing chambers is equipped with a first filter screen; the other processing chamber is installed with a first air outlet Pipe, and a water tank is installed under the first air outlet pipe; detection devices are installed on the first air outlet pipe and the air inlet assembly; the above-mentioned settings based on the detection device can effectively detect the dust content of the air intake of the dust removal device Once the dust content of the air outlet is higher than the preset value, it is determined that the first filter is damaged; at this time, adjust the direction of the air outlet of the dust removal device to enter the water tank for secondary dust removal, thus ensuring The pretreatment dust removal effect of the dust removal device.