39results about How to "Guaranteed wind speed" patented technology

The invention discloses an energy-saving control method and system for a central air conditioner. The method comprises the following steps of: acquiring room information in a building, coding and building a database for an air conditioner pipeline and an air outlet, determining refrigerating capacity air speed, and performing intelligent air-conditioning service. The system comprises an indoor airdata acquisition module, a pipeline data acquisition module, a storage module, a pipeline coding database-building module, a refrigerating data processing module, an intelligent air-conditioning service module and a communication module. The energy-saving control method realizes controlling an indoor temperature to save energy consumption to the greatest extent within a permissible range, monitors a refrigerating air-feeding state of each room in real time, can perform dynamic analysis on the central air conditioner, and provides a method for quickly checking and positioning an abnormal condition. The system is accurate and efficient, has a relatively high practical value and a wide application prospect.

The invention discloses an intelligent environment-friendly and energy-saving cold supply method and system. The method comprises building inner room information collecting, air conditioner pipeline and air outlet encoding and database constructing, refrigerating capacity and air speed determining and intelligent air conditioner service. The system comprises an indoor air data collecting module, apipeline data collecting module, a storage module, a pipeline encoding and database constructing module, a refrigeration data processing module, an intelligent air conditioner service module and a communication module. By means of the intelligent environment-friendly and energy-saving cold supply method and system, energy consumption is reduced to the maximum degree for control over the indoor temperature within the allowed range, the refrigeration air supply state of various rooms is monitored and managed in real time, and dynamic analysis can be conducted on central air conditioner running;and a rapid troubleshooting and positioning method for the abnormal situation is provided, the system is accurate and efficient, and high practical value and wide application prospects are achieved.

The invention discloses an intelligent control method and system for building refrigerating. The method comprises the following steps of: acquiring room information in a building, coding and buildinga database for an air conditioner pipeline and an air outlet, determining refrigerating amount and air speed, and performing intelligent air-conditioning service. The system comprises an indoor air data acquisition module, a pipeline data acquisition module, a storage module, a pipeline coding database-building module, a refrigerating data processing module, an intelligent air-conditioning servicemodule and a communication module. The intelligent control method realizes controlling an indoor temperature within a permissible range to save energy consumption to the greatest extent, monitors andmanages a refrigerating air-feeding state of each room in real time, can perform dynamic analysis on operation of a central air conditioner, and provides a quick checking and positioning method for an abnormal condition. The system is accurate and efficient, has a relatively high practical value and a wide application prospect.

The invention discloses a wall-hung air conditioner indoor unit and an air conditioning system. The wall-hung air conditioner indoor unit comprises a panel; an intake port is formed in the frontal surface of the panel; and an exhaust port is formed in the side surface of the panel. The wall-hung air conditioner indoor unit is provided with the intake port in the frontal surface of the panel; as the area of the frontal surface of the panel is larger than the area of the upper side of the side surface of the panel, the intake port can be effectively increased, the intake quantity can be increased, and the heat exchange effect can be improved; and as the intake port is formed in the frontal surface of the panel, the surrounding space of the intake port can be increased, the stop effect suffered by air in a flue is lower, the energy loss is reduced, the air quantity and the air speed are convenient to guarantee, and the heat exchange effect is correspondingly improved.

The invention relates to an air purification and sterilization system of enclosed spaces. The air purification and sterilization system of the enclosed spaces comprises an air flow channel, ultraviolet sterilization modules, ultraviolet irradiance sensors and a controller, wherein the air flow channel communicates with the enclosed spaces, and is provided with air inlets, air outlets, and air flues formed between the air inlets and the air outlets; the ultraviolet sterilization modules are provided with ultraviolet light sources arranged in the air flues; the ultraviolet irradiance sensors arearranged in irradiation ranges of the ultraviolet sterilization modules; the controller is connected with the ultraviolet irradiance sensors and the ultraviolet sterilization modules; and the controller has a preset power value, and by comparing the ultraviolet irradiance monitored in real time and the preset power value, power output of the ultraviolet light sources is adjusted. Circular continuous sterilization and air purification are formed between the air purification and sterilization system of the enclosed spaces and the enclosed spaces, man-machine symbiosis can be achieved, disinfection is conducted in real time, and sterilization power is adjusted intelligently and controllably according to the working conditions.

The invention provides an air guide device of an air conditioner. The air guide device comprises flexible slats arranged in parallel, a connecting bar and a drive mechanism. Each flexible blade has a first corner and a second corner; the first corner is fixedly connected with the windward side of an air outlet; the second corner is rotatably connected to the connecting bar; a rotation axis is formed between the second corner and the connecting bar. Each flexible slat has a first area, a second area and a third area; at least part of the third area is thinner than the second area. Flexural deformation of the flexible slats includes flexural deformation around a first axial direction and flexural deformation around a second axial direction. Besides swinging left or right, the flexible slats turn down or up; the flexible slats can also bend in two dimensions; pressure loss is reduced, air volume and air speed are guaranteed, air supply is effective, and comfort of supplied air is greatly improved. The invention further provides the air conditioner comprising the air guide device.

The invention relates to automatic feeding air separation equipment which comprises a base, a raw material barrel, a conveying belt, a feeding hopper, a vibrating disc, an air separation box, a dust outlet, an impurity outlet, a qualified and unqualified product mixed outlet, a qualified product outlet and a draught fan device. A material barrel support rod, a conveying belt support, a draught fandevice and an air separation are sequentially arranged above the base from left to right. According to the automatic feeding air separation equipment, automatic feeding is achieved through the conveying belt, the raw material barrel above the conveying belt is fixed through a raw material support hoop, taking and placing are convenient, time and labor are saved, the size of the hoop can be adjustable, and the automatic feeding air separation equipment is suitable for raw material barrel with different outer diameters; through the design of a sealing plate at the lower end of the raw materialbarrel, the raw material output rate can be adjusted through a pulling plate according to needs, and meanwhile, when a fault happens, material conveying can be stopped in time; and through the draughtfan device in the rotating shaft rotating direction, a fan can be used for removing garbage and impurities in the work environment after work is finished, the automatic feeding air separation equipment is convenient and quick, the cleaning time of a worker is saved, and the working difficulty of the worker is reduced.

The invention discloses an energy-saving control method and system based on target needs. The energy-saving control method comprises the steps that room information in a building is collected, codingand database building are performed on an air conditioner pipe and an air outlet, a wind speed of the refrigerating capacity is determined, and intelligent air conditioning service is performed. The energy-saving control system includes an indoor air data acquisition module, a pipeline data acquisition module, a storage module, a pipeline coding and database building module, a refrigeration data processing module, an intelligent air conditioning service module and a communication module. The energy-saving control method and system realize the maximum energy saving of controlling the indoor temperature within an allowance range, real-time monitoring and management of the refrigeration and air supply state of each room are achieved, dynamic analysis of the operation of a central air conditioner can be performed, a method for quickly checking and locating abnormal conditions is provided, and the energy-saving control system is accurate and efficient and has higher practical value and wideapplication prospects.

The invention discloses a method and a system for improving the refrigeration utilization efficiency and redundancy of an air conditioner. The method comprises the steps of collecting of room information in buildings, coding and database building of air conditioner pipelines and air outlets, determining of refrigerating capacity and air speed, and intelligent air conditioning services; and the system comprises an indoor air data collecting module, a pipeline data collecting module, a storage module, a pipeline coding and database building module, a refrigeration data processing module, an intelligent air conditioning service module and a communication module. According to the method and the system, the indoor temperature is controlled to reduce energy consumption to the maximum limit within the allowable range, refrigeration air-supplying states of all rooms are monitored and managed in real time, central air conditioner operation can be dynamically analyzed, a method for quick checking and positioning of abnormal conditions is provided, and the system is accurate and efficient and has the high practical value and wide application prospects.

A kind of large-scale high-speed machine complete texture, motor includes engine base, end cap, stator, axes, rotor and bearing, thereinto, the engine base is box structure, two dabbers or above are set on upper, lower, lest and right side board, wall of engine base is processed by steel plate whose thickness is 40mm+-3; the end cap is one-shot formed by steel plate whose thickness is 50mm+-3, contact face between end cap and engine base and bearing are smooth, they are sealed with each other; stator, the iron core of the stator fixed with three integral round steel plate whose thickness is 20mm+-3, the iron core of the stator is shaped with built-in craftwork; axes and rotor iron core are processed by thermal process; the bearing is end bracket type bearing, and possesses two floating type seals, outer possesses outer cover. Advantages are: optimization design makes resonance of motor and other electric property fulfill design requirement, and it can fulfill operating requirement of open-air or dust is big, box structure can increase rigidity of engine base, and decrease resonance of motor.

The present invention provides a fully automatic solder paste printing machine with multiple cleanings, which cleans the circuit board that is about to enter the processing program, so as to improve the yield rate of the circuit board during and after printing. Platform correction system, guide rail transportation system, stencil frame clamping system, scraper printing system and subsequent cleaning system, which also includes a pre-cleaning system, the pre-cleaning system includes splint rails for clamping and moving circuit boards, The first water outlet for spraying water to the circuit board, the water collection bottom tank for collecting the water flowing through the circuit board, the drying part for drying the circuit board, and a water recovery device, the water recovery device includes a connection The water suction pump of the water collection bottom tank is used to guide water from the water suction pump to the water diversion pipe above the circuit board. There are flushing ports at the outlet of the water diversion pipe, and the flushing ports are arranged at intervals in the vertical direction A long rectangular opening extending horizontally.

The invention discloses a temporary emergency hospital ventilation system and method. The temporary emergency hospital ventilation system comprises a negative pressure ventilation system and a medicalstaff ventilation protection system, wherein the negative pressure ventilation system comprises a first air supply pipe communicating with a medical care corridor and a ward area; and the medical staff ventilation protection system is arranged in the ward area, communicates with the outlet end of the first air supply pipe and is used for tracking and positioning the range or coordinates of the position where a human body is located in the ward area and guiding the air outlet direction of the first air supply pipe to point to the range or coordinates of the position where the human body is located. The temporary emergency hospital ventilation system has the beneficial effects that the medical staff ventilation protection system is arranged at the outlet end of the first air supply pipe ofthe negative pressure ventilation system, so that medical staff in the ward area and surrounding air of the medical staff are always affected by flowing airflow, the content of viruses in the surrounding air of the medical staff can be effectively reduced, and therefore the safety of the medical staff in the ward is effectively protected.

The invention provides high-definition camera shooting remote monitoring equipment with a self-cleaning function, which comprises an outer cover, a base and a monitor, an inner ring is clamped on the inner wall of one side of the outer cover, an inclined plate is welded on the inner side of the inner ring, a scraper is arranged on one side of the inclined plate, the scraper is mounted on one side of the inclined plate through a rotating shaft, a counter weight is welded to one end of the scraper, the outer side of the rotating shaft is sleeved with a torsional spring, and an air duct is welded to the inner wall of the other side of the outer cover. According to the high-definition camera shooting remote monitoring equipment with the self-cleaning function, a monitor can be cleaned, the surface of the monitor is cleaned, the situation that the sight of the monitor is blocked by impurities is avoided, a monitoring picture is ensured to be clear, the scraper is prevented from blocking part of sight of the monitor, the monitoring picture is prevented from having dead angles, the integrity of the monitoring picture is guaranteed, impurities, flying catkins and the like are prevented from hindering air circulation, the wind speed needed by the scraper for cleaning the monitor is guaranteed, the cleaning effect is guaranteed, and the monitoring equipment is suitable for remote monitoring.

The invention provides a dairy product cooling device based on a water cooling mode, and relates to the field of dairy product cooling. The cooling device solves the problem that the existing diary product cooling is large in water consumption and poor in cooling effect. The cooling device comprises a cooling box, and the bottom of the cooling box is welded to the top of a base through overhead legs, and the side wall of the cooling box close to the top is provided with a feeding port, and the side wall of the cooling box close to the bottom is provided with a discharging pipe in communication, and a water and air integrated cooling mechanism is arranged inside the cooling box. The cooling device introduces water to a water cooling pipe inside a cooling elbow to promote cooling, and an airpump introduces outside cold air into the cooling elbow through an air guide pipe. A gear motor drives the cooling elbow through a pulley to rotate inside a dairy product to promote uniform temperature reduction of the dairy product and also drive stirring of the dairy product to expose the portion with higher temperature to promote cooling.

The invention provides an accurate temperature control method for tunnel oven heating section disturbance resisting. The temperature of a bottle conveying channel in a high-temperature section in an oven is detected so as to control the heating pipe power, and when the constant difference value exists between the detected actual temperature and the preset temperature, the corresponding draught fanpower is adjusted, the air supply volume is controlled, and dynamic balance of the temperature in an oven body is guaranteed. According to the temperature control method, the unpredictable disturbance of an air supply environment heat cycle system can be automatically eliminated, more accurate control over the heating section temperature can be achieved, and the adjusting time is shorter.

The invention provides a clean automatic solder paste printing machine, which cleans the circuit board that is about to enter the processing program, so as to ensure that the surface of the circuit board is clean before printing in the automatic solder paste printing machine, so as to improve the efficiency of circuit board printing. , After the yield. Including the casing, clamping and lifting system, platform correction system, guide rail transportation system, stencil frame clamping system, scraper printing system and subsequent cleaning system, which also includes the pre-cleaning system, the pre-cleaning system includes And move the splint track of the circuit board, the first water outlet for spraying water to the circuit board, the water collection bottom tank for collecting the water flowing through the circuit board, and the drying part for drying the circuit board.

The invention belongs to the technical field of air conditioners, and particularly relates to a control method of an air conditioner indoor unit and the air conditioner indoor unit. The control methodof the air conditioner indoor unit and the air conditioner indoor unit aim to solve the problems that the size of an air outlet of an existing air conditioner indoor unit cannot be adjusted, the outlet air speed cannot be adjusted by changing the size of the air outlet of the air conditioner indoor unit, and the energy is not saved. For the purpose, according to the control method of the air conditioner indoor unit and the air conditioner indoor unit, the rotating speed of a fan and the opening degree of an air outlet are adjusted according to the temperature difference value between the indoor actual temperature and the target temperature and the preset mapping relation. The mapping relation comprises a corresponding relation of positive correlation between the rotating speed of the fanand the opening degree of the air outlet along with the temperature difference value. In this way, the purpose that the outlet air speed of the air conditioner indoor unit is guaranteed by reducing the opening degree of the air outlet under the conditions that the temperature difference value is small and the rotating speed of the fan is low can be achieved, and therefore the air speed is increased in a relatively energy-saving mode, and the feeling of a user for the cold air and the hot air is improved.

The invention discloses an automatic adjusting system and method for an air outlet direction of a shutter. The system comprises an air pipe, a corrugated hose and the shutter which are sequentially incommunication, and further comprises a Doppler radar sensor which is used for sensing and collecting the range or coordinate information of the position of a human body in a room, a hose adjusting device which is used for driving at least one axial section of the corrugated hose to move in the radial direction so as to adjust the air outlet direction, and a main control unit which is used for sending a control instruction to enable the geometric center axis of the corrugated hose to point to the range or coordinates of the position of the human body in the room. The automatic adjusting systemfor the air outlet direction of the shutter has the beneficial effects that the air outlet direction automatically tracks and points to personnel in the room, no extra moving space needs to be arranged on the mounting surface of the shutter and the wall, the air volume and the air speed of the position of the human body in the room are guaranteed to the maximum extent while the mounting sealing performance of the shutter is guaranteed, and a stagnant flow area or a dead flow area in the room can be effectively removed.

The invention discloses a dust removing type noiseless fan device. The dust removing type noiseless fan device comprises a stator and a plurality of fan blades. A circle of fan blades are evenly installed on the whole circular side face of the stator. Parts formed by the stator and the fan blades are all located in a cover. An elastic frame and a cooling base are sequentially arranged below the cover. The cover, the elastic frame and the cooling base are fixed through a plurality of damping rubber nails. A plurality of circular pits are evenly formed in the surfaces of the fan blades. A clamping groove is formed in the top of the stator in the vertical direction, and a dust removing mechanism is clamped in the clamping groove. By means of the structure, under the premise that the wind speed and the wind volume are guaranteed, the heat dissipation effect is good, and vibration can be reduced in the running process. When dust needs to be removed, the dust removing operation can be carried out without dismounting a whole fan from a computer. Dust removing is convenient and easy, an operator can be prevented from inhaling dust, and the health of the operator is guaranteed.

The invention discloses an intelligent environment-friendly and energy-saving cold supply method and system. The method comprises building inner room information collecting, air conditioner pipeline and air outlet encoding and database constructing, refrigerating capacity and air speed determining and intelligent air conditioner service. The system comprises an indoor air data collecting module, apipeline data collecting module, a storage module, a pipeline encoding and database constructing module, a refrigeration data processing module, an intelligent air conditioner service module and a communication module. By means of the intelligent environment-friendly and energy-saving cold supply method and system, energy consumption is reduced to the maximum degree for control over the indoor temperature within the allowed range, the refrigeration air supply state of various rooms is monitored and managed in real time, and dynamic analysis can be conducted on central air conditioner running;and a rapid troubleshooting and positioning method for the abnormal situation is provided, the system is accurate and efficient, and high practical value and wide application prospects are achieved.

The invention discloses a fresh air module, an air conditioner indoor unit and an air conditioner. The fresh air module comprises a fresh air shell and an air inlet channel which are connected. The fresh air shell is provided with a fresh air inlet and a fresh air outlet, a filter screen is arranged in the air inlet channel and partitions the air inlet channel into a first air cavity and a secondair cavity, a first opening is connected with the second air cavity, and a second opening is connected with the first air cavity. Air entering the first air cavity from the second opening can reach the second air cavity only after passing through the filter screen so that the filtering efficiency of the fresh air module can be improved; and the filter screen is transversely located in the air inlet channel so that the size of the fresh air module can be effectively decreased under the situation of the same area of the filter screen, and the air volume and air speed of the fresh air module canbe further ensured after the size of the fresh air module is decreased.

The invention relates to a direct-current direct-drive container battery pack temperature adjusting system which comprises a heat exchange unit arranged on the outer wall of a container, an air outlet formed in the upper side of the inner wall of the container and an air return port formed in the lower side of the inner wall of the container, wherein the heat exchange unit comprises a heat exchange loop, a heat pump type compressor, a first heat exchanger, a drying filter, a filter, an electronic expansion valve and a second heat exchanger, the heat pump type compressor, the first heat exchanger, the drying filter, the filter, the electronic expansion valve and the second heat exchanger are sequentially arranged on the heat exchange loop, the air outlet is communicated with the heat exchange unit, the air return port is communicated with the heat exchange unit, air in the container is blown into the heat exchange unit from the air return port and is refrigerated by the heat exchange unit to blow out cold air to the air outlet, the cold air and hot air in the container are vertically alternated to form circulation, air valves are arranged above the front end and the rear end of the container, and closed refrigeration circulation or ventilation of the container can be achieved by adjusting the air valves. The direct-current direct-drive container battery pack temperature adjusting system has the following advantages that air circulation in the container is rapidly achieved, and the uniformity of temperature distribution is guaranteed.

The invention discloses an air guide device for an air conditioner. The air guide device for the air conditioner structurally comprises an air bag, an axial fan, a rotating turbine, a rectification blade, an evaporator and an air guide mechanism, wherein the air bag is vertically fixed to the lower end of the evaporator and is matched with the axial fan; the axes of the air bag and the axial fan are collinear; the cross section of the axial fan is of a circular structure; the axial fan is horizontally clung to the front end of the air guide mechanism and is in interference fit with the air guide mechanism; the rotating turbine is horizontally arranged at the right end of the evaporator and is in interference fit with the rectification blade; the rectification blade and the air guide mechanism are of an integrated structure; the evaporator is vertically arranged at the upper end of the air bag and is mechanically connected to the air guide mechanism; and the air guide mechanism is horizontally clung to the rear end of the evaporator and is matched with the axial fan. The air guide device realizes the inhibition of air backflow, expands left and right air supplying range, shortens the fracture surface of an air outlet, increases the dynamic pressure of the air outlet and enables the supply air of the air conditioner to be comfortable.

The invention belongs to the technical field of ship air conditioning systems, and discloses an air distributor and a ship air conditioning system. The air distributor comprises an air inlet mechanism, a pressure stabilizing box, an air outlet mechanism and a flow guide folded plate. The air inlet mechanism and the air outlet mechanism are fixed on the pressure stabilizing box; the flow guide folded plate comprises a first flow guide plate and a second flow guide plate; the first flow guide plate is fixed to the inner wall of the pressure stabilizing box, and an air inlet buffer cavity is formed in the air inlet side in the pressure stabilizing box. The second flow guide plate is fixed to the inner wall of the pressure stabilizing box, and a pressure stabilizing buffer cavity is formed inthe air outlet side in the pressure stabilizing box. The second flow guide plate is connected with the first flow guide plate to form a V-like flow guide cap; an inner cavity of the V-like flow guidecap is communicated with the air outlet mechanism, and the V-like flow guide cap is located above an air outlet of the air outlet mechanism; a flow stabilizing channel is reserved between the air inlet buffer cavity and the pressure stabilizing buffer cavity. According to the air distributor and the ship air conditioning system, noise can be greatly reduced.

The invention discloses a temporary emergency hospital ventilation system and method, including a negative pressure ventilation system and a ventilation protection system for medical staff; the negative pressure ventilation system includes a first air supply pipe connecting the medical corridor and the ward area; the ventilation protection system for the medical staff is arranged in the ward In the area and communicated with the outlet end of the first air supply pipe, it is used to track and locate the range or coordinates of the position of the human body in the ward area, and guide the air outlet direction of the first air supply pipe to point to the range of the position of the human body or coordinates. The beneficial effects of the temporary emergency hospital ventilation system of the present invention are: by setting a ventilation protection system for medical personnel at the outlet end of the first air supply pipe of the negative pressure ventilation system; the medical personnel in the ward area and the surrounding air are always affected by the flowing air flow , can effectively reduce the virus content in the surrounding air, thereby effectively protecting the safety of medical staff in the ward.

The invention discloses an adjustable tuyere structure. The adjustable tuyere structure comprises a tuyere body, wherein an air inlet of the tuyere body is upwards formed and movably connected with an air box with an opening in the bottom in a sleeved manner, an angle adjusting mechanism is connected between the air box and the tuyere body, and the front portion of an air outlet of the tuyere body is movably connected with a tuyere cover in a sleeved manner; and a length adjusting mechanism is arranged between the tuyere cover and the tuyere body. According to the adjustable tuyere structure, the problem that because the blowing angle of the tuyere relative to a material film cannot be adjusted, the heat exchange efficiency is low is solved through the angle adjusting mechanism; and through the length adjusting mechanism, the problem that because the distance between an air outlet of the tuyere and the material film cannot be adjusted, tension lines are liable to be generated on the surface of the material film is solved, the heat exchange efficiency is improved on the premise that the hot air volume and the air speed are guaranteed, and then the tuyere structure can adapt to different processes on the premise that the product quality is guaranteed, the production efficiency is improved and the equipment cost is reduced.

The invention discloses an air duct assembly which comprises a shell. An air duct is arranged in the shell, an air inlet and an air outlet are formed in the air duct, a guide structure is arranged on the shell, a heating body is arranged on the guide structure, and the heating body moves on the guide structure, so that the heating body can open or close the air outlet. The invention further discloses a cold and warm air supply device. According to the air duct assembly provided by the invention, the moving position of the heating body in the guide structure is arranged, so that the air duct assembly can blow out warm air or cold air; and in order to prevent the heating body from influencing air guide of a volute tongue in the air duct, matching and movement of a support of the heating body and the volute tongue face are designed, so that the support can always cover the air outlet during use, and a warm air mode is realized. The support of the heating body is always parallel to a volute and a volute tongue outflow angle when returning to the side edge of the air duct, and the side face of the support and the volute tongue outflow face are kept coplanar, so that the air outlet is not affected, air is guided, the air outlet direction and the air speed are guaranteed, and a cold air mode is achieved.

The invention provides an organic fertilizer screening device with a fertility recycling function. The organic fertilizer screening device comprises a first barrel, a second barrel and a third barrel, a hopper is installed on one side of the first barrel, a cyclone barrel is installed on the other side of the third barrel, a guide pipe is welded to the bottom of the hopper, an air barrel is welded to one side of the first barrel,one side of the first barrel is provided with a motor through a bolt, the other sides of the first barrel, the second barrel and the third barrel are welded with sleeves, and the outer side of the sleeves is sleeved with a clamping sleeve. According to the organic fertilizer screening device with the fertility recycling function, soil particles and sand can be separated out of organic fertilizer step by step, the situation that the soil particles and the sand are not thoroughly separated is avoided, effective fertility in soil grains, sand and stones is extracted, fertility waste is prevented, the filter screen is used for filtering when not needed, the air speed of airflow is effectively guaranteed, fertility in water is absorbed through organic fertilizer, the fertility in water does not need to be extracted, the production cost is reduced, and the device is suitable for screening of the organic fertilizer.