2309results about How to "Achieve cleanup" patented technology

The invention discloses a multipoint synchronous push construction method for a porous large-span continuous steel truss girder, which comprises the following steps of: (1) assembling a steel truss girder assembling platform and a push slideway in a shoreside bridge pier position; (2) assembling a section of steel truss girder and a guide girder on the steel truss girder assembling platform; (3) installing a vertical jack for carrying out support conversion on the steel truss girder and then installing a continuous push jack, a steel strand and an electrohydraulic integrated control system; (4) operating the electrohydraulic integrated control system for carrying out push operation on the steel truss girder; and (5) after the push operation of the section of steel truss girder is finished, continuously assembling the steel truss girder on the steel truss girder assembling platform, carrying out next push operation, repeating the step for circulating operation and finishing the push construction of the porous large-span steel truss girder. The invention has the advantages of short construction period, safe construction, quality guarantee, low cost, and the like, realizes the push operation of the large-span steel truss girder, saves the construction cost, and reduces the pollution to a river channel.

The invention relates to a multifunctional stirring machine which consists of a rotatable vertical cylindrical container and a stirrer capable of rotating in reverse direction in the container. The structural design that a rotating shaft center of the container and the rotating shaft center of the stirrer are eccentric and a scraper mechanism which is specially arranged can ensure that the multifunctional stirring machine has no stirring dead angles during the work, and an electrical material level automatic control device can ensure the discharge flow of materials by relying on the self-gravity and simultaneously maintain the stable material level in the container. The multifunctional stirring machine can have a plurality of functions of mixing, peeling, clearing, polishing, dampening andthe like by being matched with stirring rods with different structures. When the multifunctional stirring machine is used as a mixing machine, the multifunctional stirring machine has the advantagesof simple structure, low cost, fast mixing speed, high mixing uniformity, small segregation tendency, low energy consumption, simple use and maintenance, long service life and the like. When the multifunctional stirring machine is used as a peeling machine, a clearing machine or a polishing machine, the multifunctional stirring machine has the advantages of high peeling efficiency or good clearingeffect, no production of crushed particles, low energy consumption and the like. When the multifunctional stirring machine is used as a dampening machine, the multifunctional stirring machine has theadvantages of uniform dampening, low energy consumption and the like.

The invention is suitable for the technical field of communication and provides a method and a device for clearing information of a contact person, and a communication terminal. The method comprises the following steps of: when a calling party communication terminal transmits application to the phone number of the contact person but the phone number of the contact person cannot receive the application, recording hint information fed back by a mobile switching center, wherein the hint information comprises the current state of the phone number of the contact person; resolving the hint information to extract the current state of the phone number of the contact person, wherein the current state comprises an out-of-service state, an overdue state, a power-off state and a normal state; and when the phone number of the contact person is out of service or overdue, deleting the information of the contact person corresponding to the phone number of the contact person. According to the method, the device and the mobile terminal, the contact person can be cleared, a useless phone number can be deleted and resources can be saved, particularly for a small-volume subscriber identity module (SIM) card.

The invention relates to a method and an apparatus for totally-closed garbage emission and transmission atomization and comprehensive utilization, in particular to the field of a method, an apparatus, a container and a facility for realizing the automation of totally-closed garbage emission, collection, concentration and transportation, no bag and comprehensive utilization. The method comprises the following steps: pulping the garbage thrown into a can with water in a certain proportion by utilizing an auto pulping liquid-state garbage can 1-2; collecting the pulped garbage into a concentrating pool 4 by utilizing a pipeline 3; transmitting the pulped garbage to a feeding farm 6 and a methane fermenting pool 7 by utilizing a water pump 5a and a carrier vehicle 5b; utilizing a purification workshop 4 and a methane recovering pipeline 9 to recover the methane; utilizing a disinfection workshop 10 and a biogas dreg dewatering device 11 to prepare the biogas dregs into organic fertilizer and fuel and discharge to be discharging into a crop irrigation and drainage land 12; purifying the sewage by utilizing a purification workshop 13 and discharging the purified sewage water; and systematically blending by utilizing a control center 14. Therefore, the invention realizes automation for totally-closed garbage emission, collection, concentration and transportation and comprehensive cyclic utilization of the garbage, and thoroughly eliminates garbage pollution caused by high polymer materials such as plastic and the like.

The invention provides a bridge expansion joint cleaner and belongs to the field of bridge maintenance equipment. The bridge expansion joint cleaner structurally comprises a main frame and is characterized in that a fan, a fan bearing block, an engine, a dust box and a decelerator are disposed above the main frame; a swing rod fixing block, a swing rod, a dust suction head, a cleaning wheel component and travelling guide wheels are disposed below the main frame; a cleaning wheel lifting handle is disposed on one side of the main frame; one end of the fan bearing block is connected with the fan, the other end of the fan bearing block is connected with the engine through a belt drive assembly, an air inlet of the fan is connected with the upper portion of the dust box through a pipe, the dust suction head is connected with the lower portion of the dust box through a pipe; the swing rod is hinged to the swing rod fixing block, the dust suction head and the cleaning wheel component are hinged to the swing rod, the decelerator is connected with the engine through the belt drive assembly, the cleaning wheel component is connected with the decelerator through a chain drive assembly; and the travelling guide wheels are connected with the main frame. The bridge expansion joint cleaner has the advantages that cleaning the bridge expansion joint under the coaction of the cleaning wheels loosening the expansion joint and strong suction of the fan is effective, efficient and low in energy consumption; the travelling guide wheels function in guiding during travelling and cleaning process, and accordingly the whole bridge expansion joint cleaner is simple in structure, low in failure rate and low in cost.

The invention discloses a continuous integrated waste plastic garbage crushing and cleaning treatment device. The device comprises a crushing machine body; a feed hopper is arranged at the top of the crushing machine body; a poking turntable is arranged in the feed hopper; a pair of rotating circular rollers is arranged in the middle position of an inner cavity of the crushing machine body in parallel; a movable support plate is hinged to the outer side wall, opposite to the rotating circular rollers, of the crushing machine body; a transmission motor is mounted above the movable support plate; an output shaft of the transmission motor is connected to center rotating shafts of the rotating circular rollers through transmission conveying belts; and the top position of a box body of a quick drying box communicates with a water vapor discharge pipe. The transmission motor enables the transmission conveying belts to always keep in a tensioned state through self weight and tension of a powerful tension spring; and dissipated water vapor is discharged through the water vapor discharge pipe, so that subsequent finished products are directly used in a dried state.

The invention discloses a diameter-adjustable pipeline cleaning device. The diameter-adjustable pipeline cleaning device mainly consists of a transmission shaft, cleaning rods, fixing discs, spherical hinges, brush heads, pins, support connecting rods, movable discs, springs and a handle and is characterized in that the fixing discs are fixed on the transmission shaft; the cleaning rods are connected with the fixing discs through the spherical hinges; the brush heads are connected with the cleaning rods through the pins, and the cleaning rods are connected with the supporting connecting rods through pins; the supporting connecting rods are connected with the movable discs through the spherical hinges, and the transmission shaft is connected to the handle; the springs are arranged between every two movable discs. Before the pipeline cleaning device is used, the brush heads and the cleaning rods are manually closed, and after the device enters a pipeline, the device is released; under the pulling action of the springs, the brush heads and the cleaning rods have trends of dispersing outwards, so that the brush heads are close to the pipe wall; the brush heads are connected with the cleaning rods through the pins, and the brush heads have the function of automatic righting in the axial direction of the pipeline; the brush heads close to the pipe walls are indirectly driven by the handle to rotate, so that the purpose of cleaning the pipeline is realized.

The invention discloses a method of cleaning database history data and a system of the method of cleaning the database history data. The method of cleaning the database history data includes the following steps: obtaining a data cleaning task from a data cleaning task queue established by a sub-data base of the database, wherein the data cleaning task comprises history data index information needing cleaning, the data base is divided into more than two sub-data base, and each sub-data base of all the sub-data base corresponds to the data cleaning task queue established by each sub-data base; cleaning history data needing cleaning in the database according to the obtained history data index information of the data cleaning task. Due to the technical scheme, efficiency of cleaning the data is improved.

The invention relates to a spray tower with the function of cleaning the packing layer, which includes a body, a water pipe, a packing layer and a water pump, and also includes a spraying mechanism, a cleaning mechanism and a sewage discharge mechanism. The cleaning mechanism includes a first support rod and a knocking block , a first transmission rod, a second transmission rod, a first drive assembly and two springs, the blowdown mechanism includes a second drive assembly, a second support rod, a moving block, a connecting rod, a scraper and a blowdown assembly, which has In the spray tower with packing layer cleaning function, the packing layer is beaten by the cleaning mechanism, and the dirt in the packing layer is cleaned out under the action of inertia, and the packing layer is sprayed by the spraying mechanism, thus realizing the cleaning of the packing layer. The cleaning of the packing layer can be kept clean, thereby improving the purification effect of the spray tower. Not only that, the sludge deposited in the spray tower is cleaned through the sewage discharge mechanism, which not only improves the efficiency of cleaning sludge in the spray tower, It also prevents sludge from clogging the sewage outlet.

The invention belongs to the technical field of interior decoration, and particularly discloses a floor tile joint filling device with an automatic gap cleaning function. The floor tile joint fillingdevice comprises a box body, a walking module, a scrubbing module, a wipe-drying module and a joint filling module, and the walking module is used for driving horizontal movement of the box body; thescrubbing module is located inside the box body, and the scrubbing module is used for cleaning stains in gaps of floor tiles and uniformizing the gap width, thereby improving effect and aesthetic measure of joint filling; the wipe-drying module is located at the right side of the scrubbing module, and the wipe-drying module is used for cleaning the stains around the gaps of the floor tiles treatedby the scrubbing module, ensuring a dry environment of the gaps and preparing for the joint filling; and the joint filling module is located at the right side of the wipe-drying module, and the jointfilling module is used for filling a joint filling agent to the gaps cleaned and dried by the wipe-drying module to complete the joint filling work. According to the floor tile joint filling device with the automatic gap cleaning function, the effective cleaning and drying of the gaps of the floor tiles can be realized firstly, and then the treated gaps are subjected to the joint filling work, sothat the work efficiency is high, and the gaps are attractive.

The invention discloses a vibration throwing pneumatic type mulch recycling operation method and machine. The machine comprises a main frame (31), a traction or suspension rack (4) and a transmission mechanism and is characterized in that a ploughing mechanism and a vibration conveying mechanism are sequentially arranged on the main frame from front to back; the vibration conveying mechanism comprises a conveying belt (51); vibrators (53) are arranged on the lower portion of the upper belt body of the conveying belt (51); a cover (32) is arranged above the vibration conveying mechanism; a positive-pressure blowing nozzle (62) and a corresponding negative-pressure induced draft nozzle (64) are arranged in the space formed between the cover (32) and the conveying belt (51); and the ploughing mechanism is of an elastic claw type or rotary tillage type. Compared with the prior art, the vibration throwing pneumatic type mulch recycling operation machine has the advantages that mulch fragments in soil are first cleaned by the ploughing mechanism and thrown to the vibration conveying mechanism; the vibration conveying mechanism vibrates to separate the soil-mulch mixture; and the mulch fragments can be picked up and collected by the positive-pressure blowing nozzle and the corresponding negative-pressure induced draft nozzle, so that the mulch fragments in the soil can be cleaned, the workload of soil processing can be lowered greatly, and the mulch recycling effect can be increased.

The present invention discloses a memory cleaning method and apparatus. According to the method and apparatus disclosed by the present invention, by determining whether an application in a process list is a protected application, the process of one or more non-protected applications is closed, and that the available memory is larger than the preset threshold is enabled, so that memory cleaning is realized, and it is ensured that applications frequently used by a user or applications currently used by the user cannot be mistakenly closed; and at the same time, that whether the application with the closed process will automatically restart can be monitored, and the automatic restart of the application that is determined as a blacklist can be prevented, so as to avoid the application to continue to take up the memory and power consumption after restart, and avoid increased power consumption due to subsequent closure of the application process.

The invention relates to the field of medical wastewater treatment, particularly a medical wastewater three-stage treatment technique which comprises the following steps: a primary macroscopic impurity removal technique is performed, wherein the primary macroscopic impurity removal technique comprises sedimentation tank treatment, precipitation tank treatment and regulating tank treatment, and is used for macroscopic impurity removal; medical wastewater after the primary macroscopic impurity removal technique enters a secondary microscopic impurity removal technique, wherein the secondary microscopic impurity removal technique comprises water softener tank treatment, hydrolysis-acidification tank treatment, aeration biological tank treatment, electrolysis cell treatment and MBR (membrane bioreactor) tank treatment, and is used for microscopic impurity removal; and medical wastewater after the secondary microscopic impurity removal technique enters a tertiary disinfection discharge technique, wherein the tertiary disinfection discharge technique comprises secondary sedimentation tank treatment, disinfection tank treatment and discharge, and is mainly used for sterilizing and disinfecting the wastewater. The technique can remove different pollutants in the medical wastewater by using different treatment processes, and can implement efficient purification on the medical wastewater.

The invention discloses a cleaning robot and a control method thereof and relates to the technical field of automatic control. The cleaning robot comprises a vehicle body with two front wheels, wherein a vehicle frame is mounted in the vehicle body, a broom, a garbage can, a water tank, a wet mop connected with the output shaft of a steering engine and a dry mop are disposed on the vehicle frame, the steering engine is mounted on a fixing plate, the steering engine is connected with the motor of a screw and a controller, and the controller is further connected with a direction detector, a speed detector, an ultrasonic ranging module, a program downloading and debugging device, a counter and a drive motor. The control method includes the steps of A, using the broom to sweep garbage, the web mop to mop a floor and the dry mop to dry the floor when the cleaning robot moves; B, cleaning the wet mop in the water tank after a certain period of time, and returning to an original position to continue mopping after the cleaning; C, by the cleaning robot, automatically returning to a charging base station for charging when the cleaning robot detects that electric quantity is smaller than a preset value. Compared with the prior art, the cleaning robot has the advantage that functions of garbage cleaning, floor mopping and floor drying can be achieved in one step.

The invention discloses a wire cutting machine, which comprises a first tank. A second tank is fixedly connected to the top part of the first tank; a working table is fixedly connected to the top partof the second tank; a wire cutting machine body is fixedly connected to the top part of the second tank and located on the back face of the working table; a first motor is fixedly connected to the bottom part of an inner wall of the second tank through a connecting block; a first belt pulley sleeves on one end of an output shaft of the first motor; and a second belt pulley is in transmission connection to an outer surface of the first belt pulley through a belt. The invention relates to the technical field of wire cutting machines. According to the wire cutting machine and the cutting methodthereof, cutting waste scraps on the working table after cutting through the wire cutting machine can be cleaned, so that no manual cleaning is needed, the workload of working personnel is reduced, the time is saved, the working efficiency of cutting carried out by working personnel is improved, and the working personnel can conveniently move the wire cutting machine through the arrangement of universal wheels.

The invention discloses an SCR outlet flue cross section nitric oxide and oxygen concentration online monitoring method and system. The monitoring method comprises the steps that multiple flue gas sampling measuring points are arranged on the measuring cross section according to a grid and divided into a path A and a path B, when monitoring analysis is conducted, flue gas sampling monitoring analysis is conducted on one of the flue gas sampling measuring points on the path A, extraction and discharge are conducted on one of the flue gas sampling measuring points on the path B, after monitoring analysis on the path A is finished, monitoring analysis is conducted on flue gas of the flue gas sampling measuring point subjected to flue gas extraction and discharge on the path B, and meanwhile flue gas extraction and discharge of the flue gas sampling measuring point which is not monitored is conducted on the path A, in this way, the flue gas sampling measuring points of the two paths are subjected to flue gas sampling monitoring and flue gas extraction and discharge alternately. The monitoring system is simplified in structure and low in cost, and online measurement of concentration field distribution of NOx and O2 in SCR outlet flue gas can be effectively achieved.

The invention provides a three-dimensional printer with an automatic clearing function. The three-dimensional printer comprises a base, a support frame, a print sprayer, a third driving mechanism, a fourth driving mechanism, a material storage box, a feeding pipe, a feeding device, an air blower and a controller, wherein the print sprayer is driven by the third driving mechanism and the fourth driving mechanism to respectively move in a transverse direction and a longitudinal direction; the first end of the feeding pipe is connected with the print sprayer, the second end of the feeding pipe is communicated with the material storage box, a vent valve is arranged on the material storage box, the feeding device comprises a material pushing plate and a cylinder, the material pushing plate is positioned in the material storage box, and the cylinder is connected with the material pushing plate; and a first air supply pipe is connected to the air blower, an air supply connecting part is arranged at the end part, far from the air blower, of the first air supply pipe, the air supply connecting part is fixed to the support frame through a connecting rod, and a heating device is connected to the position, close to the air blower, of the first air supply pipe. The three-dimensional printer can automatically clear material residues in the print sprayer and the feeding pipe, so that the print work is more smooth.

The invention discloses an unmanned aerial vehicle system used for removing water surface garbage. The system comprises unmanned aerial vehicles, a support, a camera, a connecting rod, a weighing sensor, a catching net and a distance sensor. Each unmanned aerial vehicle comprises a charging module, a power module, a CPU control module, a wireless communication module, a GPS positioning module, a picture analysis module and an indication module. According to a working method, pictures of the water surface are acquired by the camera, the unmanned aerial vehicles make analysis and judgment, and the garbage is caught through the catching net. The unmanned aerial vehicle system is high in efficiency, easy to operate, high in practicality and capable of saving time and labor.

The invention discloses an all-dimensional cleaning robot device and a control method thereof, and relates to the technical field of household appliances. The all-dimensional cleaning robot device comprises a robot body; a walking device, a suction device and a cleaning device are installed at the bottom of the robot body. The walking device is used for driving the robot body to move in an area to be cleaned. The sucking device is used for sucking the robot body to the surface of the area to be cleaned. The cleaning device is used for cleaning the area to be cleaned. The robot body is provided with an environment information collecting device and a flying device. The environment information collecting device is used for collecting ambient information of the robot body. The flying device used for driving the robot body to fly. A human-computer interaction device is further installed on the robot body. The all-dimensional cleaning robot device further comprises a central processing unit installed in the robot body, and the central processing unit is in signal connection with all the devices.

The invention discloses a multifunctional water surface clearing ship. The multifunctional water surface clearing ship comprises a catamaran, an oil-water separator, an oil storage tank, a supportingframe, a garbage basket, a collecting device, a conveyor belt, a slow-down motor, a greasy dirt collecting tube, a propeller, a transmission shaft, a storage battery, an electric motor and an oil pump, wherein the catamaran is sequentially equipped with the collecting device, the garbage basket and the oil-water separator from front to rear; the oil storage tank and the oil-water separator are arranged side by side; the catamaran and the collecting device are connected through a supporting frame; the storage battery is used for supplying power; an electric motor is arranged at the rear side inside the catamaran; the electric motor is connected with the propeller through the transmission shaft; the greasy dirt collecting tube is connected with a water inlet of the oil-water separator through the oil pump; and the slow-down motor is connected with the collecting device through the conveyor belt. The multifunctional water surface clearing ship can realize collection of floating garbage onthe water surface, and stores the floating garbage on the water surface into the garbage basket, also can realize clearing for greasy dirt on the water surface, and stores the greasy dirt on the water surface into the oil storage tank after simple filtration.

The invention discloses a breeding system, which comprises a floor, a manure leaking tank, a manure scraping device and a drive unit, wherein a through hole is arranged on the floor, a concave accommodating space is arranged in the manure leaking tank, and the floor covers the manure leaking tank Above, the manure scraping device is installed in the leaking manure tank and cooperates with the manure leaking tank. The driving unit is electrically connected to the manure scraping device, and the driving unit uses optical electromagnetic induction control to drive the manure scraping device to move in the leaking manure tank. The present invention can carry out corresponding breeding activities on the floor, and is suitable for raising chickens, ducks, pigs and the like. The driving unit can drive the manure scraping device to move in the manure leaking tank, thereby realizing the cleaning of the manure in the manure leaking tank by the manure scraping device, which is automatic, easy to use, clean and efficient at the same time. The drive unit adopts the optical electromagnetic induction control method, the structure is simple and stable, and it will not be corroded because it must be placed at the end of the manure tank due to moisture, and it can realize integrated remote control with high control accuracy.

The invention discloses an environment-friendly type ore material pulverizing device. The environment-friendly type ore material pulverizing device comprises a pulverization box and a dedusting box. A filter plate is arranged in a middle cavity of the pulverization box in a fixed and erected manner. A pulverization cavity and a lifting cavity are formed in an upper cavity of the pulverization box, and the pulverization cavity is partitioned from the lifting cavity through a partition plate. A blanking cavity is formed in a lower cavity of the pulverization box. A venturi tube mounting plate is arranged in a middle cavity of the dedusting box in a fixed and erected manner. Multiple venturi tubes are uniformly mounted on the venturi tube mounting plate. A dust filtering bag is arranged at the bottom of each venturi tube. An annular pipe is arranged in an upper cavity of the dedusting box in an erected manner. Multiple air outlet pipes are uniformly arranged on the lower surface of the annular pipe in a communicating manner. The upper portion of a cavity body of the pulverization cavity is arranged to communicate with the lower portion of a cavity of the dedusting box through a conveying pipeline. The environment-friendly type ore material pulverizing device is simple in structure, convenient to use and capable of fully pulverizing ore raw materials; and in addition, in the ore raw material pulverization process, the working environment cannot be polluted by dust, and comfort of the working environment is guaranteed.

An embodiment of the invention discloses file name identifying and file cleaning methods and devices. The file name identifying method comprises steps as follows: determining a to-be-processed file set; obtaining character strings corresponding to names of all files contained in the to-be-processed file set; for the obtained character strings corresponding to the names of all the files, detecting whether regular expression templates matched with the character strings exist in a preset regular expression template library or not; determining the detected regular expression templates as regular expression templates of the names of the files corresponding to the character strings; according to the determined regular expression templates, identifying regular expressions of the names of the files corresponding to the character strings. With the adoption of the file name identifying and file cleaning methods and devices, automatic identification of the names of the files in electronic equipment and cleaning of the files are realized, and the efficiency for identifying the names of the files in the electronic equipment and the efficiency for cleaning the files are improved.

The invention relates to the technical field of smart home, and particularly relates to self-cleaning intelligent sofa, comprising a sofa seat and a sofa backrest hinged to the rear side of the sofa seat, and also comprising a controller and a first pressure sensor, a second pressure sensor, a temperature sensor, an electric heating wire, a fan and a motor which are all electrically connected withthe controller, wherein an articulated shaft between the sofa seat and the sofa backrest is in drive connection with an output shaft of the motor, the first pressure sensor is arranged on the sofa seat, the second pressure sensor is arranged on the sofa backrest, two clapboards are arranged below the sofa seat, an ash cleaning chamber is formed between the two clapboards, a filter screen is arranged in the ash cleaning chamber, and air inlets and air outlets are respectively formed in the bottom and the top of the ash cleaning chamber. The invention provides the self-cleaning intelligent sofa, which can intelligently adjust the angle of the sofa backrest and automatically adjust the sofa angle, and meanwhile, realize the self-cleaning of the bottom space of the sofa, and bring great convenience for the life of the user.

A device for cleaning the inner wall of an elliptical pipeline comprises a motor, a center rotating shaft, rotating wheels and cleaning parts, wherein the cleaning parts comprise connecting looping rods mounted on the rotating wheels in a coordinated manner and cleaning heads mounted at the tops of the connecting looping rods; hard brushes are arranged on the cleaning heads. The motor drives the center rotating shaft to rotate, the center rotating shaft transmits power to the rotating wheels, the rotating wheels drive the cleaning parts mounted thereon to rotate, and the movement tracks of the cleaning heads of the cleaning parts are ellipses similar to the inner wall of the cleaned elliptical pipeline. The hard brushes on the cleaning heads can clean dirt on the inner wall of the pipeline while rotating.

The invention relates to the technical field of washing machines, in particular to an air duct filtering device and a washing and drying machine. The air duct filtering device comprises a pipeline body and a filter screen, an air inlet and an air outlet are formed in the two ends of the pipeline body respectively, the pipeline body is internally provided with a water storage space, the filter screen is arranged in the water storage space, water is injected into the water storage space through a water filling nozzle in use, drying air enters the water storage space through the air inlet, the dying air is filtered by means of combination of the filter screen and water, line chips in the drying air can be filtered out and stored in the water in the water storage space by means of the combination of the filter screen and the water, after filtering is completed, the water and line chips in the water storage space can be discharged together through a drainage exit, in this way, filters suchas line chips can be cleaned away without drawing out the filter, operation is conducted more conveniently, convenience is brought to use for a user, and the use experience is better.

The invention discloses an automatic grown silkworm breeding cocooning platform. Aiming at three steps of silkworm excrement removing, lime disinfection and cocooning in the silkworm breeding process, corresponding automatic processes are provided, the procedure of manual intervention is omitted, a lifting silkworm net ascends and descends so that silkworm cloth can be replaced, and the silkworm cloth can be replaced and cleaned through a further automatic mechanism. Lime disinfection is based on a line dynamic surface forming principle, a lime spraying device moves in the direction of a silkworm breeding platform and carries out spraying, the situation that due to manual lime spraying, workers are greatly harmed is avoided mainly in the dormancy period of grown silkworms, and the lime spraying amount can be controlled at will according to the actual situation, which cannot be achieved through manual work. A cluster disc is hung on cluster hanging racks, automatic lifting of the cluster tray can be achieved, in addition, the weight of the cluster tray can be set as the condition for triggering the cluster disc to move, and the situation of double cocoons is avoided synchronously in the automatic process. Labor is reduced, the automation degree of silk breeding is increased, and silkworm breeding efficiency is greatly improved.

The invention discloses a machining method of a PVC pipe, and relates to the technical field of PVC pipe machining. According to the machining method, a fixed supporting base, a clamping mechanism anda grinding mechanism are included, the grinding mechanism is fixedly connected to the fixed supporting base, and the clamping mechanism is arranged on the right side of the interior of the grinding mechanism. According to the machining method, the PVC pipe is clamped and fixed through a supporting mechanism and the clamping mechanism, the grinding end of the PVC pipe is located on the same plane,and the end of the PVC pipe is ground more smoothly and evenly, so that the phenomenon that the end of the PVC pipe cannot be ground is avoided; and the end of the PVC pipe and the edge of the end ofthe PVC pipe are ground through the grinding mechanism, and burrs at the end and the edge of the PVC pipe are effectively removed, so that the processing quality of the PVC pipe is indirectly improved.

The invention discloses a device for collection and purification of rainwater in western regions. The device comprises a water storage tank and a rainwater collector. The device collects the rainwaterthrough the rainwater collector and a connecting pipe, the goal of water level control through collaboration of a water level detector and a controller, and too high water level and overflow are avoided. First the collected rainwater undergoes multi-layer physical filtration to filter out large volume of impurities, and then a water purifying piece is added to kill bacteria in the rainwater; meanwhile, activated carbon is further utilized to adsorb harmful impurities in the water. The device further has a unique PH value detection function, the drinking of rainwater severely harmful to the human body, such as acid rain, is avoided, the whole device performs repeated sieving and filtering on the rainwater through a mesh box, a sieve plate, an adsorption plate and a fine mesh sieve, so thatnot only is drinking safety ensured, but also manual purification is not required, the clearing of deposited impurities in the water storage tank can further be performed through an impurity removingconveying belt and an impurity removing door, the clearing is convenient, and manpower is saved.