68results about How to "Easy to control manually" patented technology

The invention discloses a pond ecology-based industrialized circulating water culture and purification system. The system divides a pond into a culture area, a primary biological purification area, a biological wetland purification area, an ecological purification corridor, an ecological oxidation pond and a buffer area, wherein the culture area comprises a plurality of cuboid water tanks which are longitudinally arranged side by side; the buffer area is positioned at the water inlet end of the culture area; the primary biological purification area is positioned at the water outlet end of the culture area; the primary biological purification area communicates with the biological wetland purification area through a first ditch; the biological wetland purification area and the ecological purification corridor are separated by a fishing net; the ecological purification corridor communicates with the ecological oxidation pond through a second ditch; a water pump is mounted at the junction of the ecological purification corridor area and the ecological oxidation pond; the ecological oxidation pond is positioned at the left side of the culture area and is separated from the culture area and the primary biological purification area; and the ecological oxidation pond is separated from the buffer area by the fishing net. The system disclosed by the invention realizes a centralized high-input, high-yield and short-period efficient culture mode; and pond ecology-based purification is performed on tail water of culture, thereby ensuring zero discharge throughout the whole process.

The invention discloses a self-adaptive control system and method for the swing speed of a cutting arm of a cantilever type heading machine and belongs to the field of autonomous guiding control of coal fully-mechanized excavating equipment. The self-adaptive control system comprises a sensing and detecting system, a heading-machine-mounted main control system and a system execution mechanism. In the coal wall cutting process of the heading machine, the load of a cutting head is also changed when the hardness of coal rock is changed, so that main work parameters of a cutting part system are also changed correspondingly; the sensing and detecting system detects the work parameters in real time and sends a signal to the heading-machine-mounted main control system; and the heading-machine-mounted main control system processes the received signal and controls the execution mechanism to make action, so that the self-adaptive control effect that the swing speed of the cutting arm is matched with the hardness of the cut coal rock in real time, and accordingly the full-automatic cutting process of the heading machine is achieved during coal mine roadway heading.

The invention discloses a method for rapidly identifying and screening anti-blight banana seedling. The method comprises the steps of establishment of banana seedling hydroponic system, inoculum preparation and inoculation, daily management of banana seedling, disease situation investigation and grading. Banana seedling stage inoculation and hydroponic identification method can effectively control interference due to differences in soil structure, nutrition, microorganism, etc., during banana seedling stage inoculation identification process, rapidly and accurately identify anti-blight bananaseedling, continuously identify large amount of tissue-cultured banana seedlings in small area, perform multiple times of identification in one year, improve test result reliability, shorten identification period, and save land occupation and test cost.

The invention relates to engineering-fly biological high-protein flour where the protein for human beings to east is extracted from natural resources, breeding adult flies, breeding commercial maggots and maggot breeds, separating commercial maggots, maggots breeds and feed, and then processing the commercial maggots to make it. The breeding method is simple, the breeding rate is high, the cost is low, and it is clean and healthy, and easy to implement batch-type production. The obtained product has rich nutrition, and completely and balancedly contains fat, amino acid, vitamin and mineral elements all necessary to human body.

The invention relates to an intelligent real-time on-line displaying and controlling leakage protector which comprises a control panel, wherein a wire inlet interface and a wire outlet interface are arranged at the end part of the control panel; a zero sequence transducer, a shunt releaser, an operating mechanism and a controller are arranged in the control panel; a leakage current display screen is arranged on the control panel; a tripping mode and a tripping mode selecting unit are arranged in the controller; the tripping mode comprises a forcing non-tripping mode, a delayed tripping mode and a normal tripping mode; the tripping mode selecting unit is used for selecting the tripping mode according to the size of a leakage current detected by the zero sequence transducer and switching among the modes according to the change of the detected leakage current. The invention provides an intelligent real-time on-line displaying and controlling leakage protector which is used for solving the technical problems of a breaker in the prior art that an instantly increased leakage current is subjected to tripping, service life of equipment is influenced, working efficiency is reduced and treatment cannot be performed according to specific working conditions.

The invention relates to a house-fly pupa natural antibiotic peptide product as well as a preparation method and application thereof; house-fly pupas, the raw material of the antibiotic peptide product, are extracted overnight by acid and hot-processed to collect supernatant; and after going through siever filtration and ultrafiltration precessing, the supernatant is treated with spray dring to obtain the antibiotic peptide product. The preparation technique of the antibiotic peptide product is simple and quick, the yield of the antibiotic peptide reaches 1.2 percent and the recovery rate of the antibacterial activity is over 80 percent. The prepared house-fly antibiotic product consists of peptides which have the molecular weight less than 20kDa and are mainly micromolecular peptides with the molecular weight less than 14.4 kDa. The antibiotic peptide product has broad-spectrum antibiotic activity and no hemolytic activity to blood erythrocytes of mice and is characterized by high temperature resistance, acid and alkali resistance and good stability. The byproducts of the technique can serve as feeding insect protein powder. The prepared antibiotic peptide product can be widely applied to the fields such as the antisepsis and storage of foods, fruits and vegetables, feed additives, cosmetic and the like.

A lumber drying kiln comprises a kiln body which is provided with a main kiln door. The kiln body is internally provided with at least one set of air feeding device and heating device. A plurality of exhausting devices are arranged in the kiln body. A temperature and humidity detecting device and a moisture content detecting device are arranged in the kiln body. According to the lumber drying kiln, the temperature in the kiln is even by means of the air feeding and heating mode, a steam spraying pipe is matched, the temperature and humidity in the kiln are easy to adjust and control, the energy utilization rate is high, and the energy conservation effect is good; an air speed field, a temperature field and a humidity field are uniform in distribution, and the drying uniformity is good; the drying efficiency is high, and the comprehensive technological economic performance is good. After the lumber drying kiln is adopted, the drying cycle is shortened by 33%, color changing, decaying and worm damage are zero, internal cracking is zero, end cracking and surface cracking is 0.6%, deformation is also greatly relieved, and the internal stress is fully eliminated.

The invention discloses an online detection device of the clear water layer thickness of a concentration tank, and aims at solving the problems of lag control and poor precision of the existing device. The online detection device is characterized by comprising a detection rod, a pressure sensor, a guide base, a supporting base, a lifting device, a displacement sensor, a programmable logic controller (PLC) control box, an upper travel switch and a lower travel switch, wherein the supporting base and the guide base are arranged on the bridge frame of a concentrator; the lifting device and the upper travel switch are arranged on the supporting base, and the lower travel switch is arranged on the guide base; the displacement sensor is fixed on the side face of the lifting device, and the lower side is connected with the detection rod; the pressure sensor is arranged in the inner cavity of the detection rod, and a probe stretches out and contacts with the level; and a limiting plate is arranged on the detection rod, and the upper plane of the limiting plate is constantly contacted with the contact of the displacement sensor. According to the online detection device of the clear water layer thickness of the concentration tank, by the combination of the pressure sensor and the displacement senor, and by an automatic conversion system and the guide device which move up and down, the thickness of the clear water layer in the concentration tank can be automatically detected in real time, so that the automatic control of the concentration process is achieved, and the labor intensity of the operator is reduced.

The present invention discloses a monitoring method of optical filter film thickness. Said method includes the following steps: firstly, calculating spectral curve of every monitoring film using central wavelength lambda O as monitoring wavelength; calculating series spectral curve using out-of-centre wavelength as monitoring wavelength; then using conventional extreme indirect monitoring method to plate optical film on substrate; testing the spectral curve of plated filter; comparing the tested spectral curve with analogously-calculated spectral curves to find out most similar spectral curve in the calculated spectral curves, regulating monitoring wavelength and preparing new filter again, repeating the above-mentioned steps until the waveform and transmittance or reflectance indexes spectral curve of filter are reached to indexes of designed requirements.

The invention discloses a method for extracting radix saussureae lappae essential oil by supercritical carbon dioxide, comprising the following steps of: firstly, freezing and drying radix saussureae lappae until the weight percentage of water is less than 10%; slicing and crushing to obtain radix saussureae lappae powder; and extracting the radix saussureae lappae powder for 30-240 minutes under the conditions that the temperature is 40-55 DEG C, the extraction pressure is 10-30 MPa and the CO2 flow is 5-25 L / h to obtain the radix saussureae lappae essential oil. By adopting the method for extracting the radix saussureae lappae essential oil, the extraction efficiency is high, the heat decomposition of essential oil components is not caused and the yield is higher than 6.04%. Compared with the traditional method, the method has the advantages that the production efficiency is greatly improved, the production period is shortened, the product yield is high and the economic benefit is obvious; and no environmental pollution is caused and the method is convenient for manual control and industrial production.

The invention discloses a rice-fish-shrimp circular planting and breeding system. A pond is divided by the system into a culture zone, a smooth water zone, a field board and an open water buffer zone,wherein the culture zone comprises a plurality of longitudinally parallel culture water tanks, the smooth water zone is located at a water outlet end of the culture zone, and the pond bottom of the smooth water zone is lower than the bottom of the culture zone; the open water buffer zone is located at a water inlet end of the culture zone, and the pond bottom of the open water buffer zone is lower than the bottom of the culture zone; the field board is U-shaped surrounding the culture zone, the smooth water zone and the open water buffer zone, and a circular ditch is dug on the edge of a field parcel along the pond bank; a first water isolation belt is arranged to divide the field parcel into a rice-shrimp planting and breeding zone and an ecological purification zone; a second water isolation belt is arranged from the water inlet end of the culture zone far away from the bank end of the pond in the water flow direction to enable water to flow circularly in an O shape along the culture zone, the smooth water zone, the rice-shrimp planting and breeding zone, the ecological purification zone and the open water buffer zone. The problems about treatment of high-density culture waste and fertilization of a comprehensive rice field planting and breeding system are solved, and efficient utilization of system resources and zero emission of tail water and waste are realized.

The invention relates to an overwintering breeding method for artificially breeding leeches, and belongs to the technical field of leech breeding. The overwintering breeding method is characterized by comprising eight steps, and an overwintering box body and an overwintering net bag are combined with a wet paddy field to achieve high-density overwintering breeding of the leeches. An opened box opening is top of the overwintering box body at the top of the overwintering box body, slide wheels are installed at the four corners of the bottom of the overwintering box body, and holes are uniformly distributed and formed in a base plate of the overwintering box body; the overwintering net bag is composed of a supporting frame, nylon net cloth and a zipper, and the overwintering net bag is matched with, attached to and installed in the overwintering box body. The method is simple, the survival rate is high, the cost is low, and the method is suitable for industrialized leech overwintering breeding; cross infection is avoided, the leech disease occurrence rate of the overwintered leeches is extremely low, and the overwintered leeches are effectively prevented from large-scale deaths. The labor force is saved, and the management is facilitated. The problems are solved that in existing indoor leech overwintering breeding, the occupied space is large, the leech throwing density is low, the management is troublesome, the overwintered leech weight-loss ratio is high, the yield is low, and high-density overwintering breeding requirements are difficult to meet.

The invention relates to the technical field of gastrodia elata planting, in particular to a gastrodia elata planting and cultivating method. Rolled rods are prepared from corn paste, and the corn paste is made to be capable of serving as a gastrodia elata culture material; by adding rice bran and / or rice hull, particle matter and ingredients which are difficult to be combined with the corn paste are generated in the corn paste, therefore, the air permeability of a jelly material prepared from the corn paste is good, the formation rate of gastrodia elata protocorms is increased, the contact rate of the protocorms and armillaria mellea is increased, sufficient nutrition supply is guaranteed, and the yield is increased.

The invention relates to the technical field of skin anastomats, and discloses a skin anastomat with a differential structure. The anastomatcomprises a shell; a movable handle is arranged in the shell, a nail bin shell is arranged on the lower surface of the shell, a nail pushing piece is arranged in the nail bin shell, and a first rotating shaft is arranged in the nail pushing piece in a penetrating manner; one end of the first rotating shaft is rotationally arranged on the inner wall of the nail bin shell, a gear is fixedly arranged at the end, close to the contact portion of the nail bin shell, of the first rotating shaft, spiral teeth are arranged above the gear and matched with the gear, the spiral teeth are fixedly arranged on the outer surface of the second rotating shaft, and the second rotating shaft penetrates through the two sides of the nail bin shell; a second bearing is rotationally connected to the position, corresponding to the nail bin shell, of the second rotating shaft, the second bearing is arranged on the two sides of the nail bin shell in a penetrating mode, a handle is fixedly arranged at the end of the second rotating shaft, the anastomat can clamp a wound before suturing, and convenience is brought to follow-up suturing.

The invention discloses a farm system for implementing an organic pig improvement technology. The farm system comprises a pigpen and an intelligent management system connected with the pigpen, wherein the intelligent management system is internally provided with a power supply system, a dsp processor, a human-computer interaction platform, an analog-to-digital conversion circuit, a digital-to-analogue conversion circuit and a plc control circuit, the power supply system is connected with electricity utilization equipment in the pigpen and the dsp processor, the dsp processor is connected with the analog-to-digital conversion circuit and the digital-to-analogue conversion circuit, and the plc control circuit and the analog-to-digital conversion circuit are connected with the electricity utilization equipment. The intelligent control system is designed based on a digital signal processing technology and an embedded control technology, and is used for performing information acquisition and management control on the electricity utilization equipment in the farm system intelligently, so that the farm system is in a set optimal breeding environment, the desired breeding environment is provided for the improvement of organic pigs, and the whole system has the advantages of scientific design, reasonable use, low using cost, real-time controllability and the like.

The invention provides a process for preparing zinc sulfate and the process is simple in step, low in energy consumption, high in production efficiency and high in product purity. The process comprises the following steps: putting secondary zinc oxide and zinc oxide in waste residues produced in zinc preparation in a raw material tank filled with dilute sulfuric acid, reacting to generate a zinc sulfate solution, guiding the zinc sulfate solution into a reaction tank, removing impurities such as iron, cobalt and copper in the reaction tank, filtering the impurities through a filtering machine, guiding the zinc sulfate solution into a storage tank for precipitation, evaporating the zinc sulfate solution in an evaporator to obtain a concentrated solution, crystallizing in a crystallizing tank, carrying out crystal separation in a centrifugal machine, cooling to obtain zinc sulfate containing crystal water and drying in a dryer to obtain the zinc sulfate. According to the process, the zinc sulfate solution is concentrated in the way of pouring hot oil and circularly heating, so that the heating temperature is higher, the heating material can be recycled, the energy consumption is little and the cost is reduced. The process for preparing the zinc sulfate is simple and clear in processing step, energy-saving, friendly to the environment and convenient to operate.

The invention relates to the field of agriculture, in particular to a method for planting tea trees, in particular to the method for ecologically planting the tee trees in flat lands. Flat lands are selected to plant the tee trees, and the method specifically includes: selecting limestone-free loam as a seedbed, fertilizing the seedbed after sterilizing; in the first ten days of every June, shearing one-year semi-lignified fresh branches to insert into soil, keeping 4-6 leaves on each fresh branch, arranging the leaves along downwind direction, watering after cuttage cutting; watering once for every 9-15 days when saplings are 7 centimeters in height; killing pests by pesticide; trimming once within periods from the first ten days of every October to the first ten days of every November after the tea trees are grown up. The method selects the flat lands to plant the tea trees, breaks the traditional view that the tea trees must be planted on the hills, and the flat lands are beneficial to mechanized operation and pest control, and manual control of land temperature and room temperature is more convenient and low in cost.

The invention provides a novel tractor-drawn avoidance hay mower. The hay mower adopts a power output transmission shaft of a tractor as a power source, and a plurality of fixed mowing cutter discs are connected with an avoidance mowing cutter disc mounted on a rotating arm through a belt pulley. The avoidance mowing cutter disc mounted on the rotating arm adopts a belt pulley transmission mode, and a transit belt pulley at the other end is coaxial with the fixed end of the rotating arm. An avoidance reset elastic device is connected between the rotating arm and a mounting frame. The hay moweris designed, wherein when the hay mower encounters an obstacle during running, the rotating arm of the mowing cutter disc can achieve avoidance under the pressure of an external force, and automaticresetting after the obstacle is passed by is achieved. Through a transit transmission mode design of the fixed end of the rotating arm and the avoidance mowing cutter disc on the rotating arm, the structural complexity of power connection and conversion is simplified, the production cost is reduced, and favorable conditions are created for large-scale popularization and application of such machinery.

The invention relates to a device system for recovering nitric acid through nitrate thermal decomposition and a using method thereof. The device system comprises a heating melting tank, a pyrolyzing furnace, an atomizer, a dust collector, a fan, a tail gas heat exchanger and a nitric acid absorption device, the heating melting tank is used for heating and melting nitrate to obtain nitrate hot fluid; the pyrolyzing furnace is used for decomposing the nitrate hot fluid from the heating melting tank; in mixed gas through decomposing, dust entrained in the mixed gas is separated, cooling and conveying into the nitric acid absorption device are carried out; wherein the pyrolyzing furnace is divided into an inner shell and an outer shell, and the inner shell is adopted to form a decomposition channel of the pyrolyzing furnace; a heating body is arranged between the inner shell and the outer shell and is a resistance wire or a microwave magnetron or a radiation heating pipe. By means of the device system, the heating cost can be effectively reduced, meanwhile, the whole process of recovering nitric acid through thermal decomposition is simplified, controllability is high, and meanwhile the prepared metal oxide is uniform in particle size.

The invention discloses a pesticide application device used for agricultural irrigation. The pesticide application device comprises a base, wheels are installed on the bottom of the base, a mixing boxis arranged on one side on the upper portion of the base, a stirring motor is installed in the portion, on the bottom of the mixing box, of the base, a stirring shaft is installed at the output end of the stirring motor, and an inlet is formed in the top of the mixing box. A water pump is installed on the portion, on one side of the mixing box, of the base, the input end of the water pump is connected with the bottom of the mixing box through a pipe, an electric lifting column is arranged on the portion, on the side opposite to the water pump and the mixing box, of the base, an air cylinder is installed at the output end of the electric lifting column through a rotation shaft, and a telescoping rod is installed at the output end of the air cylinder. An observation window is formed in thesurface of the mixing box, and a power box is installed on the surface of the portion, above the observation window, of the mixing box. The pesticide application device has the advantages of being convenient to move and use, high in pesticide application efficiency and good in pesticide application effect.

The invention relates to the technical field of intelligent home control, in particular to an intelligent control system of a building suspended sash window. The intelligent control system is providedwith an information collection unit, a wireless transmitting unit, a wireless receiving unit, a control unit, an actuation unit, a key triggering unit and a display unit. By collecting indoor and outdoor environment signals, and indoor and outdoor personal activity signals, controlling the opening and closing of a suspended sash window, switching a manual mode and an intelligent mode and switching three working modes, i.e. a timing ventilation mode, a regular ventilation mode and an automatic ventilation mode, the indoor environment quality can be regulated and controlled and can also be remotely controlled by virtue of a remote data transmitting unit in case of personnel going out or negligence, thereby achieving a purpose of ensuring the indoor safety.

The dry farming seed coating agent relates to a non-engineering anti-drought product, in particular to a seed treatment agent. The present invention is composed of the following components according to the ratio by weight percentage: 71-78 superabsorbents made of acrylamide and sodium acrylate, 15-21.71 nutrients, 0.3-0.6 plant growth regulators, and 1.0-1.0 bactericides 3.0, insecticide 4.0 ~ 10.0. The feature of the invention is a novel seed coating agent mainly composed of a super water-absorbing agent, which has the functions of water absorption, water retention, fertilizer retention, wilting resistance, sand fixation, sterilization and strong rooting. The early cropping seed coating agent of the present invention contains nitrogen, phosphorus, potassium, calcium, magnesium, iron, boron, manganese, zinc, copper, molybdenum and other complete nutrients, and the ratio of each nutritional element is optimized by isotope tracer technology. The optimal ratio, scientific composition; the seed coating contains plant growth regulators, and the optimized combination of these ingredients can stimulate plant rooting and improve drought resistance; the fungicides and insecticides in the seed coating have fungicidal and disease resistance and Insecticidal effect.

The invention discloses a CCD automatic adjusting mechanism which comprises a main body portion and a control unit. A supporting base plate is positioned on the bottom position, and two main columns are symmetrically arranged on the center of the supporting base plate. A hydraulic adjusting column is installed on the inner side of each main column, a floating plate is fixed on the upper end of each hydraulic adjusting column, and the main columns pass through the floating plate and are connected with the hydraulic adjusting columns. A protective cover is installed on the lower center of the floating plate, and two signal emitters and signal receivers are provided. The signal emitters are respectively installed on the two sides of the bottom of the connection board, the signal receivers are connected with a controller through leads, and the controller is connected with the hydraulic adjusting columns through leads. Compared with the prior art, the CCD automatic adjusting mechanism solves uneven spacing by adding signal receivers and signal emitters. The distance is adjusted automatically, and the hydraulic adjusting columns solve the instability during an adjusting process.

The invention relates to the field of sludge treatment, and particularly relates to a sludge mixed burning system. The sludge is stored in a sludge silo, a feeder drives the sludge to enter a sludge crusher so that the sludge is processed into pieces or powders capable of being blown by high pressure gas, weighing is conducted on the sludge by using a weighing silo so that the amount of the sludgeguided into a boiler furnace is controlled conveniently, and the power generation efficiency of a power plant is improved; and a first air intake valve can lead the high-pressure gas of the gas source to the weighing silo so that the sludge in the weighing silo is blown to a conveying silo, and a second air intake valve can lead the high-pressure gas of the gas source to the conveying silo, so that the sludge in the conveying silo is blown to the discharging end of the conveying silo, and the sludge is conveyed to the boiler furnace through a conveying pipe. According to the sludge mixed burning system, the contacting time of the sludge with the outside air and moisture coal can be reduced to the utmost extent, so that hardening of the sludge due to moisture absorbing is avoided, the factthat the odor of the sludge pollutes the outside air can be further avoided, and humidity manual controlling of the air source can be easier conducted.

The invention provides an intelligent lifting type flood control water retaining device for a fan pavilion and a control method. The device comprises a baffle assembly, a shell, a lifting assembly, a field monitoring system and an electrical control unit, wherein the baffle assembly is matched with the fan pavilion in shape; a sealing rubber strip is arranged on the periphery of the bottom of a baffle; the shell contains the lifting assembly and the baffle assembly and covers a foundation of a fan pavilion opening; a lifting opening is formed in the top of the shell; the sealing rubber strip seals the lifting opening when the baffle ascends; the lifting assembly comprises a linkage lifting mechanism and a motor; the field monitoring system comprises a water level gauge and a position sensor and collects information; and the electrical control unit receives the information and drives the linkage lifting mechanism to ascend and descend by controlling the motor to rotate forwards and backwards, and the baffle is made to stretch out and retract. The lifting mechanism is automatically controlled to drive the baffle to ascend and descend, the flood control capacity of the fan pavilion during rainstorm is improved, a station is prevented from being flooded, and the operation safety of a subway is ensured; and the automation degree is improved, the speed is high, and efficiency is high.

The invention provides a reaction kettle for cooling a viscous and dense material. The reaction kettle comprises a kettle body, a jacket, a stirring paddle, a scraper, a shunt plate, a suction paddle,a thermometer and the like. The stirring paddle and the scraper are designed integrally to ensure that the viscous and dense material has axial and radial flows at the same time; and the scraper continuously scrapes away heat-exchanged materials to ensure that the viscous and dense material can fully exchange heat, the temperature distribution is uniform, and the cooling speed and efficiency areeffectively improved. The shut plate settles the cooled viscous and dense material at the bottom of the kettle body in sections, and the suction paddle assists in axial circulation to improve the heatexchange efficiency and realize continuous discharge in a cooling process. The reaction kettle solves environmental protection problems during filling and natural cooling of materials with high temperatures, and meanwhile greatly shortens the production period, effectively prolongs the storage time of materials and improves the quality of products. The reaction kettle has the characteristics of simple structure, low cost and convenient operation. The reaction kettle can be widely applied in food, feed, chemical industry, pharmacy and other fields requiring rapid cooling of viscous and dense materials.

The invention discloses a bone traction device, and relates to the technical field of medical instruments. The bone traction device comprises a base, a support component for supporting a limb of a patient and a traction component for pulling the limb. The traction component comprises a traction frame mounted on the base and a traction rope respectively connected to the traction frame and the limb,and the traction rope is provided with an adjustment assembly for adjusting the length of the traction rope. The traction frame comprises a lifting rod hinged on the base and a traction rod connectedto the lifting rod through a locking mechanism. The locking mechanism includes a gear I disposed on the side end portion of the lifting rod, a gear II disposed on the side end portion of the tractionrod and matched with the gear I and a control component for controlling whether the gear I and the gear II are meshed. The gear I and the gear II include a plurality of racks arranged in a circular shape uniformly, and the rack mounting direction is consistent with the circular radial direction. The bone traction device has the advantages of being simple in structure, convenient to operate, efficient and practical, good in treatment rehabilitation efficacy and capable of adjusting the direction, the angle and the size of the therapeutic traction force.

The invention relates to a method for treating sewage by virtue of waste incineration slag. The method specifically comprises the following steps: removing impurities from waste incineration slag, sieving, flushing with water, and carrying out airing, so as to obtain carrier fillings, and filling a reaction bed with the carrier fillings; adding activated sludge into the reaction bed by virtue of a pump; cultivating and acclimating activated sludge until detecting that the removal rates of COD and NH3-N in effluent of the reaction bed reach above 70%; and spraying sewage by virtue of a water distribution region, processing by virtue of the reaction bed, and collecting and discharging treated rural domestic wastewater. Compared with the prior art, the method has the advantages that the waste incineration slag is subjected to resource utilization based on a theory of ''waste control by waste'', meanwhile, the rural domestic wastewater is treated with low cost, and household refuse incineration slag is prepared into the microorganism-attached carrier fillings for the sewage treatment, so that the rural environment is beneficially improved and protected.

The invention provides a tunnel automatic maintenance multi-arm robot and a control method thereof. The tunnel automatic maintenance multi-arm robot comprises a walking mechanism, a fixed base plate arranged on the walking mechanism, a plurality of multi-degree-of-freedom mechanical arms arranged on the fixed base plate and a main control platform. Image detection devices and maintenance tool fixing grooves are formed in the tail ends of the multi-degree-of-freedom mechanical arms in a carrying mode, and the main control platform is correspondingly in communication connection with the multi-degree-of-freedom mechanical arms, the image detection devices and maintenance tools arranged in the maintenance tool fixing grooves. By arranging the multiple multi-degree-of-freedom mechanical arms, multi-directional simultaneous operation of the robot can be achieved, and the maintenance efficiency of tunnel maintenance equipment is improved. Big data processing and machine learning algorithms are adopted, automatic task planning and mechanical arm track planning are achieved, and the functions of automatic tunnel detection and maintenance can be intelligently achieved.