364results about How to "Reduce labor load" patented technology

The invention relates to the field of battery manufacturing and particularly relates to a drying method of a lithium-ion battery electric core. The method comprises the following steps that: the electric core to be dried is placed in a closed cavity; constant temperature of the cavity is set; multiple times of vacuum pumping and vacuum relieving are cyclingly carried out; and a cycling air flow is formed in the closed cavity and the electric core is dried. When the lithium-ion battery electric core adopts the drying method provided by the invention, cycling of air pumping and air changing is introduced in the process of vacuum drying, and water content in the lithium-ion battery electric core can be reduced in a relatively short period of time, and operation processes are simplified and work load of an operator is reduced.

The invention discloses a magnetic wheel type wall climbing robot with curved face self-adaptation adsorption. The magnetic wheel type wall climbing robot with the curved face self-adaptation adsorption comprises a mobile platform with the curved face self-adaptation adsorption, an acceleration sensor, a wireless communication module, a camera and an upper computer, wherein the mobile platform with the curved face self-adaptation adsorption consists of magnetic driving wheel units and curved face self-adaptation frames; and through the common deformation of an elastic permanent magnetic adsorption layer in each magnetic driving wheel and a loose-leaf hinge in each frame, the curved face self-adaptation adsorption is realized. The magnetic wheel type wall climbing robot with the curved face self-adaptation adsorption provided by the invention has a good curved face self-adaptation ability and a good obstacle climbing ability and can stably walk on a curved face with smaller curvature radius, thereby availably meeting the demands of engineering applications such as wireless health detection of a large-span space grid structure and the like.

The invention discloses an intelligent road sweeper and a road pollutant identification method and a control method thereof. The road sweeper comprises a road sweeper body, a laser radar, a camera, anencoder, a dust concentration detector, an inertial sensor, a GPS system and a processing controller. A method for identify road pollutants include acquiring RGB images of clean road surface and roadfacilities to be cleaned, convert that acquired RGB images into HSV space, and obtaining a BP neural network model capable of identifying the clean road surface and road facilities; The real-time image information of the road to be cleaned is input to the BP neural network model to identify the pollutants. The method for identifying pollutants such as garbage in the present invention utilizes theHSV feature of a road image, which has a larger information amount of the gray value of the image than that of a single image, and has a better effect for identifying pollutants such as garbage.

The invention discloses a single welding and series welding integrity device of solar cell slices. The provided single welding and series welding integrity device of the solar cell slices is good in positioning accuracy and compatible in the solar cell slices with different specifications, and can improve the single welding and series welding production efficiency of the solar cell slices. The device comprises a device rack, the device rack is provided with a feed mechanism, a transmission and positioning mechanism, a welding and temperature control mechanism, a blanking mechanism, a control mechanism and a power supply and control mechanism. According to the single welding and series welding integrity device of the solar cell slices, a full manual welding mode is replaced by a full automatic mechanical welding mode, the production efficiency is remarkably increased, the cell slice failure rate during a welding process is reduced, and the device is suitable for cell slice welding of the solar cells.

The invention relates to the part inspection field, and discloses a fluorescent penetrant detecting method. The method comprises the following steps of: providing a relatively closed structure for each unit; loading a workpiece to be detected on a conveying device; conveying the workpiece to be detected to a penetrant application unit to apply a penetrant; conveying the workpiece to be detected to a cleaning unit to finish surface cleaning; conveying the workpiece to be detected to a drying unit to remove surface moisture; conveying the workpiece to be detected to a developer application unit to apply a developer; and finally conveying the workpiece to be detected to a detection unit by the conveying device to perform detection. The method can effectively relieve the labor burden, reduce the production cost and improve the production efficiency, avoids the harm of the penetrant and the developer to the operating personnel, meanwhile avoids cross contamination between the penetrant and the workpiece and between the developer and the workpiece, and eliminates the pollution of the penetrant and the developer to the environment.

The invention relates to a decision planning method for automatic driving of a special vehicle. The method comprises the steps of: 1) an automatic driving operation module obtaining the current position and pose of a vehicle; 2) projecting environment information sent by a perception system to a grid map, and generating an environment map; 3) the automatic driving operation module obtaining a control instruction of a current work executor and issuing the control instruction; 4) the automatic driving operation module obtaining a task reference route, performing trajectory cluster planning combined with vehicle dynamics constraints by a route-speed decomposed trajectory planning method, obtaining a basic trajectory cluster executable by the vehicle, and fusing the basic trajectory cluster and the task reference route to obtain an executable trajectory cluster; and 5) performing safety and high efficiency selection on the planned executable trajectory cluster, and finally generating a high-gain trajectory. According to the decision planning method for the automatic driving of the special vehicle, compared with the prior art, the method has the advantages of improving obstacle avoidance success rate, automatic decision, multi-mode trajectory decision strategy, achieving automatic driving safety and the like.

The invention discloses a high-precision automatic alignment ICT (In Circuit Tester). The high-precision automatic alignment ICT comprises a rack, a lower mold assembly, an upper mold assembly and an alignment adjusting platform, wherein the lower mold assembly comprises a supporting plate; an FPC (Flexible Printed Circuit) to be detected is arranged on the supporting plate; a CCD (Charge Coupled Device) camera is fixedly arranged at the position just above the FPC of the rack; the upper mold assembly comprises an upper mold entering-exiting air cylinder, an upper mold hoisting air cylinder, a pressing block and a thread needle seat unit; the alignment adjusting platform is provided with an adapter coupling plate; and the adapter coupling plate moves to the upper side of the FPC. According to the ICT provided by the invention, rapid detection and automatic alignment of the FPC can be realized through the matching of the CCD camera and the alignment adjusting platform, and a golden finger on the adapter coupling plate and a golden finger of the FPC are tightly pressed by a pressing block and are communicated; and the thread needle seat unit is communicated with a connector pin point of the FPC, so that an open circuit, a short circuit, a capacitor, a resistor, an inductor, a switch and the like of the FPC product can be rapidly tested and the production efficiency is improved.

The invention relates to a sticky product with silicon erosion resistance of a carbon / carbon composite material and a preparation method thereof. The method comprises the steps of: putting a carbon fiber precast body into a reaction chamber of a vacuum high-temperature furnace; depositing an inner coating containing silicon carbide at the surface of a carbon fiber; depositing pyrolytic carbon at the surface of the carbon fiber to prepare a carbon / carbon composite material billet; putting into a vacuum autoclave and an atmospheric carbonization furnace, carrying out vacuum impregnation of resin, pressurized solidification, and normal-pressure carbonization; continuing to fill resin carbon in a residual hole inside the billet to obtain the compact carbon / carbon composite material billet; finally putting into a vacuum high-temperature furnace; and carrying out high-temperature graphite purification treatment and overall coating of an outer coating containing silicon carbide, so as to prepare the sticky product with silicon erosion resistance of the carbon / carbon composite material.

The invention discloses a control device and control method for operating parameters of a cutting table of a combine harvester and belongs to the field of automation of agricultural harvesting machinery. The control device comprises a forward speed monitoring module, a crop status monitoring module, a control module and a man-machine interaction module; the crop status monitoring module is used for acquiring optical images of crops, extracting plant height, density, stubble and lodging degree information and sending the same to the control module; the control module controls the rotation speedof a reel according to the forward speed and a speed ratio model of the machine, the position of the reel according to the plant height and lodging degree, the cutting frequency according to the forward speed of the machine and the crop density degree and the height of the cutting table according to the height of stubble; the man-machine interaction module with the manual automatic switching function displays monitoring data in real time and controls the operating parameters of the cutting table through buttons. Through manual button control and intelligent automatic adjustment of the operating parameters of the cutting table system, better performance of the combine harvester is achieved, and intelligence level and efficiency of harvesting are improved.

The invention discloses an intelligent household electric appliance control nursing device and method based on a multi-mode brain-computer interface. The device comprises a visual stimulation screen, an EEG signal collection system, a computer, a controller and an equipment terminal, wherein the visual stimulation screen, the EEG signal collection system, the computer, the controller and the equipment terminal are mutually connected. The device detects whether a P300 level and an SSVEP are generated in the same target key group at the same time or not, so as to discriminate the idle / control states of a system. The device selects a to-be-controlled household electric appliance and the control of related operation through the brain-computer interface based on the P300. The device and method provide a new nursing mode for paralytic patients (SCA, ALS, etc.) who stay on a bed for a long time. The paralytic patients can autonomously achieve the posture change on the bed, so as to prevent bedsore. Meanwhile, the device and method can achieve the operation control of various types of household electric appliances on the bed, thereby improving the living quality. The device and method can accurately discriminate the idle / control states of the system, are high in recognition rate, are complete in function, are high in practicality, and can be used for the paralytic patients.

A tread feed rack and a feed method thereof of the invention can simultaneously satisfy centering and length control demands for tread materials. In a cutting process, a cutter slides on a sliding track of a cutter carrier by a driving mechanism, and in a process that the cutter slides downwards, the cutter cuts off the tread by a shoveling manner. The cutter carrier of the feed rack is fixed on a frame at two sides of a conveying template, the sliding track is arranged on the cutter carrier, the sliding track forms a certain included angle with the tread conveying direction, and the cutter is slidingly connected with the sliding track. The tread feed rack and feed method thereof of the invention can eliminate the influence on centering in the cutting process, simultaneously eliminates length control error influence on the tyre homogeneity.

The invention discloses an automobile leaf spring carrying mechanical arm, and relates to a mechanical arm. A cross arm rotary seat is connected with a rotating arm through a rotating arm spindle, the rotating arm can rotate by 360 degrees, a locking mechanism II is arranged between the rotating arm and the cross arm rotary seat, a drop arm rotary seat which can rotate by 360 degrees is arranged at the tail end of the rotating arm and is connected with an auxiliary rotating shaft which is connected with a lower drop arm, a locking mechanism III is arranged between the drop arm rotary seat and the lower drop arm, and a turning air cylinder which can be turned by 90 degrees is arranged on the lower drop arm. According to the mechanical arm, workloads of workers are reduced, random movement accurate positioning is ensured when workpieces are connected in a butt joint mode, damage, to the workpieces, caused by collision is prevented in the assembling process, and the automobile leaf spring carrying mechanical arm is convenient and flexible to operate, efficient and safe and saves labor in the operation process.

The machine of the invention includes a cutting device, a first conveyor, a second conveyor, a first moving arm and a second moving arm. The cutting device includes a platform, a lower mold on the platform and an upper mold correspondingly over the lower mold. The first conveyor is disposed near one side of the platform for conveying boxes to be cut. The second conveyor is disposed near the other side of the platform for conveying cut boxes and remnants. The first moving arm includes a first transmission and a first robot hand driven thereby for moving the boxes to be cut to a position between the lower mold and the upper mold. The second moving arm includes a second transmission and a second robot hand driven thereby for moving the cut boxes and remnants to the second conveyor.

The invention relates to a shoulder wedge feeding frame and a front guiding and positioning method thereof. A fixed edge guiding device and method capable of realizing the purpose of pressing downwards, rotating and pushing laterally simultaneously is used for realizing synchronous conveying of two shoulder wedges in limited conveying distance, thereby improving the conveying consistency of the two shoulder wedges to ensure that the two shoulder wedges can be accurately jointed on shoulder positions in parallel. The device is mainly provided with a conveying frame and a conveying template, wherein the conveying template is used for conveying shoulder wedges onto a forming drum and is installed on the conveying frame through a supporting frame. Different from the prior art, at least one group of fixed edge guiding mechanisms are arranged on brackets along the conveying direction of shoulder wedges. The fixed edge guiding mechanisms comprise at least one group of guiding rollers which are axially arranged between brackets at two sides and can axially rotate, and surface rollers of the guiding rollers are spirally arranged along the central line in the transverse direction and the brackets at two sides in the oblique direction. At least two groups of compression rollers which are driven by cylinders are arranged above the guiding rollers in the vertical direction, and the vertical central lines of the guiding rollers and the compression rollers are coincident.

The invention discloses an automatic space structure health monitoring system based on a curved-surface wall-climbing robot sensor. The automatic space structure health monitoring system comprises a wireless sensor subsystem, a data acquisition subsystem, a data management subsystem and an automatic analysis terminal subsystem, wherein the wireless sensor subsystem consists of the wall-climbing robot with a wireless acceleration sensor, the acceleration data is synchronously acquired in different blocks, and the data is transmitted to the data acquisition subsystem; the data acquisition subsystem transmits the data to the data management subsystem so as to primarily process the data, and then the data is transmitted to the automatic analysis terminal subsystem, so that the automatic analysis for the structural modality and the early warning can be carried out. By adopting the automatic space structure health monitoring system, the wireless monitoring in the whole process can be realized, the wire distribution difficulty of the sensor can be avoided, the quantity of the sensor can be reduced by utilizing the movable sensor, and the monitoring cost is reduced; by utilizing the automatic mode recognition system, the manpower and the time can be saved, and the application requirement of projects such as wireless health detection of a large-span space structure can be met.

The invention discloses an automatic cleaning device of a rotary screen for producing compound fertilizer. The device comprises a transmission device and a vibration device; in the transmission device, a driving sprocket fixed on a main shaft of the rotary screen is connected with a driven sprocket arranged on a vibration main shaft through a transmission chain; and in the vibration device, the vibration main shaft is arranged on a shell of the rotary screen through a bearing device, a cam is arranged on the vibration main shaft, the cam corresponds to a fixed ring, a guide cylinder is fixed right above the topmost point of the fixed ring through a rib plate welded with the shell of the rotary screen, a vibration ball is connected with a lever through soft connection and placed in the guide cylinder, and the level is connected with a guide pivot welded on the shell of the rotary screen. The passing rate of cleaning the screen by using the device can reach over 90 percent.

The invention discloses a diagnostic automobile combined instrument, an instrument diagnostor and an instrument diagnosing method. The existing automobile combined instrument is improved, is provided with a serial communication interface with a diagnostic function and is matched with the automobile instrument diagnostor for use, thus realizing accurate diagnosis on specific faulted instruments, fault reasons and quantized sampling value errors, and providing direct basis for accurately judging the faulted parts, thereby shortening the maintenance time and effectively lowering the overhaul cost. The diagnostic automobile combined instrument comprises an instrument singlechip, an instrument interface circuit and an instrument output circuit, a serial communication channel is arranged in the instrument interface circuit, serial data ports SDA1 and SDL1 as well as control ports SDC1 and ACT1 are arranged in the instrument singlechip, and a bidirectional four-way analogue switch COMS chip is respectively connected with a control communication channel and a pair of digital pulse input circuits in a digital signal sensor interface circuit.

The invention relates to a coal-rock interface recognition handheld system which comprises a coal-rock interface recognition processor and a handheld terminal, wherein the coal-rock interface recognition processor is arranged on a tail beam of a top coal caving hydraulic support or a rocker arm of a coal mining machine, and comprises a first shell, a sensor, a first circuit module, a first wireless module and a battery; and the handheld terminal comprises a second shell, a second circuit module, a man-machine interaction module, a second wireless module and a power module. The coal-rock interface recognition handheld system has the advantages that a method for distinguishing coal-rock recognition can be provided for a top coal caving working surface, the handheld terminal can be used for receiving the coal-rock recognition detection results sent by coal-rock interface recognition processors respectively arranged on a plurality of hydraulic supports at the same time, and a mode which relies on automatic coal release mainly while manual intervention subsidiarily can be realized on the top coal caving working surface provided with an electrohydraulic control system, so that the work load of operators can be further reduced, and the degree of automation of a fully mechanized caving face can be improved.

The invention discloses a testing device for outlet logics of a main transformer, a differential bus device, and an automatic bus transfer device. The testing device comprises an input and output unit, a CPU control unit and a liquid crystal display. The input and output unit includes an input module, an output module and a photoisolator. A switching value output contact of the output module is connected with a switching value input terminal of a relay protection tester; and a signal input terminal of the output module is connected with the photoisolator. 16 to 24 pairs of interfaces that are connected with collection contacts, a switching value input terminal that is connected with a switching value output contact of the relay protection tester and a switching value input terminal that is connected with an output contact of a trigger button are arranged on the input module; and a signal output terminal of the input module is connected with the photoisolator. And the CPU control unit consists of a collection contact information conversion module, a time recording module, a storage module and a data processor. According to the invention, pulses of all outlet press plates can be tested on the condition that protection only makes one-time motion.

The invention discloses a control system and method for precise positioning of a mobile discharging car. The system comprises a digital laser diastimeter, a vector control frequency converter, a programmable controller and a man-machine interface; the digital laser diastimeter measures the actual distance feedback value of the discharging car and the target position in real time, the vector control frequency converter is used for driving a transmission motor of the mobile discharging car, and the man-machine interface is formed in a control chamber and used for transmitting an unloading command target value; according to the target value and the actual distance feedback value, the programmable controller positions a model and conducts calculation, then, a calculation result is transmittedto the vector control frequency converter in a communication mode, and the vector control frequency converter drives the motor to achieve precise positioning. According to the control system and method for precise positioning of the mobile discharging car, bit number display and precise positioning control functions of the mobile discharging car can be achieved, and free switching between an automatic positioning mode and a manual operation mode is achieved; few fault is generated, little interference is generated, no accumulated error or abrasion error exists, and the positioning precision can reach up to the range of minus one to one millimeter.

The invention discloses a titanium dioxide automatic packaging process. The process comprises the following steps: loading a bag; measuring and packaging; unloading the bag; re-inspecting the bag weight; shaping; spraying codes on the bag; stacking; rechecking the tonnage; winding; and spraying the tonnage, wherein the steps are divided into two conveying chains from the stacking step. The titanium dioxide automatic packaging process overcomes various defects in titanium dioxide material automatic packaging, realizes automatic packaging on the titanium dioxide, and has an excellent using effect, so the automatic level of finished product package is greatly improved, the labor load of staff is reduced, the yield is improved, and the titanium dioxide automatic packaging process creates a precedent of finished product automatic packaging in the same industry in China.

The invention discloses a method for separating and purifying amikacin, which carries out continuous chromatographic resolution on amikacin material by using weak-acid cation resin and employing a continuous chromatographic resolution system technique. The method comprises the following steps: the material solution divides 30 separating units in the whole procedure into four regions comprising anadsorption region, a washing region, a separating region and a regenerating region through a continuous chromatographic resolution system, so as to replace the prior fixed-bed separation plant; and the original steps of absorption, washing, resolving, regenerating and the like in the fixed bed in the whole procedure are integrated into the disc-transmission type reverse-flow continuous chromatographic resolution system, so that the amikacin is effectively separated and purified, the production cost is reduced, the production technique is simplified, the production period is shortened, the pollution is reduced and the total yield is increased.

Provided is a cross-safety-subarea automatic electric-power control and monitoring system and method. The cross-safety-subarea automatic electric-power control and monitoring system comprises a safety area I monitoring server, a safety area I switch, a one-way forward isolation device special for electric power, a one-way reverse isolation device special for electric power, a safety area III monitoring server and a safety area III switch. A safety area III monitoring server is provided with a device configuration and control program, generates a query or control command file CMD. TXT to be stored in a folder CMD3 through the configuration and control program, the one-way reverse isolation device special for electric power timely scans the folder CMD3, converts a new file into an encrypted binary data flow and then transmits the encrypted binary data flow to the safety area I monitoring server when finding the appeared new file. The safety area I monitoring server reads the binary data flow transmitted from the one-way reverse isolation device special for electric power, performs decryption to form the file CMD. TX and stores the file CMD. TX in a folder CMD1.

The invention discloses a medical symptom information processing device for COVID-19 quarantine management. The device comprises the components of a digital module which is used for digitalizing inputmedical symptom information according to a severe degree, and obtaining a digital value of each item; a comprehensive scoring module which is used for performing weighted summation on the digital values of the items, and obtaining a comprehensive score; a condition monitoring module which is used for monitoring each piece of medical symptom information of the patient and the digital result thereof and the comprehensive score, and diagnosing the patient condition according to a preset condition; and an information generating module which is used for reminding information for aiming at the patient and / or the doctor according to the condition that is determined by the condition monitoring module. The invention further provides a quarantine management system comprising the medical symptom information processing device. According to the device and the system, an intelligent tool is used for realizing functions of quick patient symptom information recording, automatic processing and monitoring.

The invention discloses a diaphragm laser cutting device. The diaphragm laser cutting device comprises a laser generator, a locating tool and a position adjusting mechanism, wherein the laser generator is used for enabling diaphragm ring single bodies to be cut out on a diaphragm, the locating tool is used for fixing the diaphragm, and the position adjusting mechanism is used for adjusting the relative position of the locating tool and the laser generator. According to the diaphragm laser cutting device, mass cutting can be carried out on vibrating diaphragms of electret microphones by using laser equipment, and the cutting precision of the vibrating diaphragms is high.

The invention belongs to a manipulator and relates to a manipulator device used for motor stator assembly. A bottom plate is fixed on the ground through expansion bolts. A vertical post is arranged at the center of the bottom plate. A main rotating seat is arranged at the top end of the vertical post. The main rotating seat is connected with a large side plate through a main rotating shaft. A telescopic cylinder is arranged at the lower end of the left side of the large side plate. A small side plate is arranged on the large side plate. One end of a main rocking arm and one end of an auxiliary rocking arm are both connected with the large side plate; the other end of the main rocking arm and the other end of the auxiliary rocking arm are both connected with a connecting plate. A cross arm rotating seat is connected with a rotating arm through a rotating arm spindle. The cross arm rotating seat is connected with the rotating arm spindle. The rotating arm is connected with a vertical arm rotating seat which is connected with an auxiliary rotating shaft. The auxiliary rotating shaft is connected with a lower vertical arm. A rotating cylinder is arranged at the tail end of the lower vertical arm. A spindle of the rotating cylinder is connected with a clamping cylinder of a fixture. The manipulator device allows an operator to easily perform procedures, such as carrying, turning and assembling a stator, while barely feeling the weight; the manipulator device is simple and easy to operate, efficient and safe.

The invention discloses a method for brewing primary-brewed soybean sauce. The method comprises the following steps: 1) selecting soybeans, and cooking the soybeans, so as to obtain cooked soybeans for later use; 2) weighing and frying wheat for later use; 3) uniformly mixing the cooked soybeans prepared in the step 1) and the fried wheat meal obtained in the step 2) so as to obtain a leavened material, inoculating the leavened material with a mold starter, then, performing starter propagation, performing starter forming, performing starter discharging, and performing fermentation tank charging; 4) carrying out fermentation tank fermenting; 5) carrying out precise filtering; 6) carrying out high-temperature instant sterilization, enabling the sterilized substance to pass through a twin filter, and enabling the filtered substance to enter a semifinished product tank; 7) encapsulating a semifinished product, then, carrying out packaging, carrying out sampling and detecting, and enablingthe product to enter a finished product area after the product is qualified. The method has the advantages that the workload is reduced, the labor consumption and energy consumption are reduced, and the production cost is reduced substantially; the flavor and taste of the product are effectively improved, a foundation is laid for product safety, and thus, marketing is facilitated.

A multi-functional exerciser for bedridden patients is a frame structure consisting of four upright posts (1), one quadrilateral upper frame (2) and two lower connecting rods (3), wherein the quadrilateral upper frame (2) is connected with the upper ends of the upright posts (1); two ends of each lower connecting rod (3) are connected with two upright posts (1) in the same side of the sickbed respectively; the lower parts of the four upright posts (1) are respectively equipped with a universal wheel (4) with self-locking function; a fixing beam (5) of upper limb exerciser relative to the upper limb of the patient is arranged on the quadrilateral upper frame (2); a fixing beam (6) of lower limb exerciser relative to the feet of the patient is arranged on the quadrilateral upper frame (2); the fixing beam (5) of upper limb exerciser is equipped with two rings (7) and / or an elastic chest developer (8); the fixing beam (6) of lower limb exerciser is equipped with a tension spring (10) the lower end of which is connected with a bonding tape (11) for fixing the feet of the patient. The invention has the advantages of simple structure and low cost, helpful for early recovery of heavily ill or bedridden patient.

A solarization recrystallization salt-manufacturing technology is characterized by comprising the following steps: (1) utilizing seawater or brine to flush large-particle crude salt, so as to obtain brine with relatively high concentration; (2) sending the high-grade brine subjected to centralized preparation to crystallization ponds; (3) utilizing a mechanical brine-stirring machine to stirring brine and salt; (4) after crystallization is finished in the step (3), centralizing bittern to a salt collection pond and removing superfluous brine; (5) utilizing a salt-slurry pump to transport and stack salt-bittern mixture; (6) returning brine in the step (4) to a brine storage clearing pond for reutilization and crystallization; and (7) performing transportation. Compared with the prior art, the technology has the advantages that seawater or mixed brine is utilized for flushing crude salt, mechanical equipment is not for stirring, and high-grade brine is obtained in a short time; a pipeline system, the mechanical brine-stirring machine, a salt reeling machine, the salt-slurry pump, an excavator and the like are utilized for collecting and stacking salt, the crude-salt output in an unit area is improved, and labor is saved; and the product is pure white and fine, and can be used as a good processing raw material of various edible-salt products.