189 results about "Feeding pumps" patented technology

The present disclosure provides a ceramic three-dimensional (3D) printing device based on a gel molding process and a control method. The ceramic 3D printing device based on a gel molding process includes a feeding assembly, a receiving assembly, a scraping assembly, and a spray assembly. The feeding assembly includes a feeding pump and a storage hopper. The receiving assembly includes a feeding rod. The feeding pump can convey slurry in the storage hopper to the feeding rod. The control method includes introducing the atomized liquid into the storage hopper and the bearing groove through the first spray pipe and the second spray pipe respectively. According to the present disclosure, a water content of the slurry can be controlled to achieve a better curing effect.

The invention provides a pharmaceutical continuous granulating and drying all-in-one machine, and belongs to the technical field of pharmaceutical equipment, the pharmaceutical continuous granulating and drying all-in-one machine comprises an all-in-one machine main body, and the all-in-one machine main body comprises a feeding mechanism, a granulating mechanism and a drying mechanism which are connected in sequence; the granulating mechanism comprises a double-screw granulator and a feeding pump; and a drying mechanism. A powder material is conveyed to the double-screw granulator through the feeding mechanism, the powder material and a liquid material are mixed in the double-screw granulator to form a wet particle material, and the wet particle material falls onto the air distribution plate through the discharging pipe. Wet particle materials are dried on the air distribution plate, the vibration assembly drives the air distribution plate to obliquely vibrate in a reciprocating mode through the air inlet cavity, and the air distribution plate drives the materials to vibrate and form transmission in the direction from the discharging pipe to the discharging pipe. According to the continuous granulating and drying all-in-one machine for pharmacy provided by the invention, the integrated design of the wet granulator and the continuous drying machine is realized, the defects caused by configuration of transmission equipment between the wet granulator and the continuous drying machine are avoided, and the space utilization rate of the equipment is improved.

The utility model discloses a premixing system for a gun head of a foaming machine. The premixing system comprises a first material supply device, a second material supply device, a mixing gun head and an emulsifying device, each of the first material supply device and the second material supply device comprises a material tank, a feeding pump and a first pipeline, and the two material tanks are connected with two material inlets of the mixing gun head through the first pipelines and the feeding pumps respectively; wherein one material tank is provided with a pressurizing device, the pressurizing device is used for pressurizing the material tank, the emulsifying device comprises emulsifying equipment, a first circulating pump and a second circulating pump, and the emulsifying equipment is respectively connected with an inlet and an outlet of the material tank provided with the pressurizing device through the first circulating pump and the second circulating pump. The gas-phase material is prevented from escaping through the supercharging device, meanwhile, re-emulsification can be conveniently achieved through the dispersing device, and the stability of the material in the using process is ensured.

The utility model provides an acetoxyacetyl chloride synthesizer which comprises a first synthesis kettle and a second synthesis kettle, the top of the first synthesis kettle and the top of the second synthesis kettle are both communicated with a first metering tank and a second metering tank through pipelines, and the first metering tank and the second metering tank are both provided with feeding pumps. The bottom of the first synthesis kettle and the bottom of the second synthesis kettle are communicated with a rectifying kettle through pipelines, a rectifying assembly is arranged at the top of the rectifying kettle, and a discharge port is formed in the bottom of the rectifying kettle; the whole device is simple in structure, the two synthesis kettles can be alternately used, so that the production efficiency is effectively improved, acidic mixed waste gases such as sulfur dioxide and hydrogen chloride are not generated, the utilization rate of raw materials theoretically reaches 100%, the device completely conforms to an environment-friendly and pollution-free green process, the reaction process is mild, and the production cost is low. The reaction speed can be controlled by controlling the temperature and the catalyst input amount, the production operation is safe, the production cost is low, and the benefit is high.

The utility model discloses a feed pump impeller of a filter press, which comprises an impeller housing main body, an impeller panel is mounted in the impeller housing main body, an impeller stabilizing cover is mounted on one side of the impeller panel, and a detachable structure is arranged between the impeller panel and the impeller stabilizing cover. The center of the surface of the impeller panel is fixedly connected with the center of the surface of the impeller stabilizing cover through a transmission shaft, a fastening shaft ring is arranged at the center of the surface of the impeller stabilizing cover, a first flange plate is arranged on the side surface of the impeller housing body, and the impeller housing body is in sealed connection with an impeller side cover through the first flange plate. And the impeller stabilizing cover is fixedly connected with the impeller panel through a positioning screw. The impeller panel structure convenient to assemble and fix is arranged, the impeller stabilizing cover is installed on the side surface of the impeller panel structure, the safety and stability of the impeller during operation can be improved, meanwhile, the outside of the impeller is subjected to quick-disassembly type sealing protection, and the impeller has the advantages of being tight and stable in connection and convenient to disassemble and maintain.

A carrier for transporting and administering food or other liquids in the intestines includes a housing having a bottom tray, a back plate and two side plates and a front plate for attachment of a feed pump. A plurality of support elements are provided to hold the container in place within the housing. The support element is height-adjustable relative to the bottom tray, thereby allowing the containers to be supported at different positions above the bottom tray. The front plate is removable from the housing and can be used as a support for the feed pump. The carrier can be easily integrated into a backpack or the like.

The horizontal sand mill comprises a base, a machine body is fixedly installed on the left side of the upper end of the base, a feeding pump is arranged at the upper end of the machine body, the right end of the machine body is movably connected with a sealing disc, and a milling cylinder is fixedly installed at the right end of the sealing disc. The right end of the sealing disc is movably connected with four fixing bolts in a threaded mode. The problem that the maintenance difficulty is large is solved. According to the key point of the technical scheme, the horizontal sand mill for coating production is provided. When the push plate moves rightwards, the fixed block is pushed to move rightwards, when the fixed block moves rightwards, the grinding cylinder is pushed to move rightwards to be separated from the machine body, the rollers are arranged at the bottom of the grinding cylinder, so that the grinding cylinder can be simply pushed to move, and at the moment, the grinding disc, connected with the machine body, in the grinding cylinder is exposed outside; therefore, the abraded grinding disc can be conveniently maintained without going deep into the grinding cylinder for maintenance, the operation is simple, and the maintenance difficulty is reduced.

A flow control system and method that detects the condition of a pump assembly mounted on a device. The system is configured to perform a method of advancing a first amount of a feed recipe through a feed pump via a feed recipe conduit. In addition, the system may obtain a first pressure sensor reading of the feed recipe conduit. Further, the system may propel a second amount of the feed formulation through the feed pump via the feed formulation conduit, where the second amount is a second volume of the liquid. Further, the system may acquire a second pressure sensor reading of the feed recipe conduit and acquire a third pressure sensor reading of the feed recipe conduit. Further, the system may detect clogging in the feed recipe conduit based on at least one of the first pressure sensor reading, the second pressure sensor reading, and the third pressure sensor reading.

The invention discloses L-carnitine production high-salinity wastewater treatment equipment which is characterized in that a feeding pump is connected with a first-effect evaporator, an external steam control valve is connected with the first-effect evaporator, a first pressure gauge is mounted at the input end or the output end of the external steam control valve, and the output end of the first-effect evaporator is connected with the input end of a second-effect evaporator; the system further comprises a wiped-film evaporator, a condensing unit and a vacuumizing unit, the wiped-film evaporator is provided with a plurality of input ends and a plurality of output ends, and the input ends of the wiped-film evaporator are connected with the output end of the second-effect evaporator; the input end of the condenser is connected with the first output end of the wiped-film evaporator, and the cooling liquid input control valve and the cooling liquid output control valve are respectively connected with the condenser; the output end of the condenser is connected with one end of the adjusting valve through a third pipeline, the other end of the adjusting valve is connected with the vacuum pump, and the second pressure gauge is connected with the third pipeline. According to the invention, energy consumption and cost can be reduced.

The invention belongs to the technical field of dehydration systems, particularly relates to a low-boiling tower feed dehydration system before VC rectification, and aims to solve the problems that in the prior art, when vinyl chloride is dehydrated by adopting a solid caustic soda particle layer, local excessive consumption and edge waste of solid caustic soda are easily caused due to non-uniform distribution of vinyl chloride, and the solid caustic soda is easily caked to block a channel, so that the product quality is influenced. According to the technical scheme, the device comprises a low-boiling tower feeding pump, an alkali liquor collecting tank, two drying boxes and a low-boiling tower, the right side of the low-boiling tower feeding pump is connected with a first connecting pipe, and the bottom ends of the two drying boxes are fixedly connected with fourth connecting pipes; the two fourth connecting pipes are fixedly connected with the first connecting pipe, and Y-shaped connecting pipes are fixedly connected to the top end of the alkali liquor collecting tank and the bottom ends of the two drying boxes. By optimizing vinyl chloride distribution and vibrating a solid caustic soda particle layer, vinyl chloride is made to make uniform contact with solid caustic soda, meanwhile, lumps are shaken to avoid blockage, and the drying efficiency is improved; the dehydration efficiency is improved; and the solid caustic soda replacement frequency is reduced.

The utility model relates to the technical field of multi-stage pumps, in particular to a single-flow-channel type inner shell structure applied to a hydrogenation feeding pump and an ammonium carbamate pump in the petrochemical industry. One end of a long transition flow channel suction chamber is connected with a short transition flow channel at the tail of a pump driving end, and the other end of the long transition flow channel suction chamber is connected with one end of a long transition flow channel; the other end of the long transition runner is connected with the first short transition runner at the non-driving end of the pump; and the first short transition runner at the non-driving end of the pump is connected with the delivery chamber to jointly form an inner shell runner. The short transition flow channels are arranged on the single side of the driving end or the non-driving end of the pump in a staggered mode step by step. According to the technical scheme, the problems that the manufacturing difficulty and cost of a grinding tool are increased due to a double-flow-channel structure in the prior art are solved; the small runner size is easy to generate casting defects, and the yield is low; and the pump efficiency is low.

The application discloses a backflow prevention system, which comprises a flow regulating valve, a cut-off valve, a check valve, a differential pressure low interlock and a signal processing unit. A feed pump is communicated with the flow regulating valve, the check valve, the cut-off valve and a high-pressure reactor in sequence. The differential pressure low interlock is communicated with an inlet pipeline connecting the feed pump and the flow regulating valve at one end and with an outlet pipeline connecting the cut-off valve and the high-pressure reactor at the other end. The output end of the differential pressure low interlock is connected with the input end of the signal processing unit in communication. The output end of the signal processing unit is connected with the control end of the flow regulating valve and the control end of the cut-off valve in communication. The signal processing unit controls the on-off of the flow regulating valve and the cut-off valve according to the differential pressure between the two ends of the differential pressure low interlock. The application realizes multi-stage protection of the high-pressure channeling low-pressure working condition by constructing a highly integrated backflow prevention system, and improves the safety of the high-pressure reaction system.

The application discloses a feeding pump. The feeding pump comprises an outer box, a box cover installed on the outer box, a lower support frame fixed below the outer box, a feeding sieve connected to the outer box, a box body arranged in the outer box, a pair of box inner clamping grooves installed on the inner wall of the box body, a driving fixed frame fixed between the box bodies, a diaphragm pump installed in the box body, and a bidirectional driving motor fixed on the driving fixed frame. A box bottom avoiding groove is formed in the bottom of the box body, a penetrating rod groove is arranged beside the box bottom avoiding groove, and an inner connecting rod and a limiting plug rod are respectively penetrated in the penetrating rod groove. The pump body is arranged above the buffer pump frame, the telescopic pressing rod drives the built-in diaphragm to reciprocate and feed, meanwhile, the base table is stressed in the process of repeated movement of the pump body, the first supporting spring installed on the two sides and the second supporting spring installed inside are matched to complete the compensation of vibration under the assistance of the inner connecting rod and the limiting plug rod, so that the pump body runs more stably, and the equipment is prevented from deviating after being used for a certain period of time.

The utility model discloses a crack pouring device for road construction, which comprises a crack pouring machine, the crack pouring machine comprises a frame, a raw material box is arranged on the frame, one side of the raw material box is communicated with a feeding pipe and a feeding pump, one side of the feeding pipe is provided with a three-way valve, the bottom of the three-way valve is provided with a discharging pipe and a spray head, and the outer side of the discharging pipe is sleeved with a mounting pipe. A mounting frame and a mounting rod are arranged on the spray head, a mounting hole is formed in the mounting pipe, the other end of the three-way valve is communicated with a heating pipe and a booster pump, a heating box is arranged on one side of the heating pipe, a fan is arranged on the heating pipe, and a filter pipe and a filter screen are arranged on the heating pipe. Communication between the feeding pipe and the spray head and communication between the heating pipe and the spray head are conveniently controlled, through the feeding pipe and the feeding pump, feeding for the spray head for crack pouring is facilitated, hot air can be blown into the spray head by arranging the draught fan and the booster pump, residual asphalt in the spray head can be conveniently cleaned, and the phenomenon that the asphalt is solidified to block the spray head is prevented; and the practicability of the crack sealing machine is improved.

The utility model provides a material conveying device for crystal bar gluing, and aims to solve the technical problem that glue in a conveying system of an existing single-component crystal bar gluing device is easy to cure. A first storage barrel of a storage unit is used for storing a sizing material A; the second storage barrel is used for storing a sizing material B; each material storage barrel is connected with a conveying pipe, and the material conveying pump is arranged at the position of the conveying pipe. The material mixing unit comprises a material mixing pump set and a material mixing pipe assembly; the input end of the mixing pump set is connected with the output end of the conveying pipe; the mixing pipe assembly is used for mixing two sizing materials, is connected to the output end of the mixing pump set and is externally connected with a gluing device; the position sensor is used for sensing whether a crystal bar exists below the mixing pipe assembly or not; the input end of the control processor is connected with the position sensor, and the output end of the control processor is connected with the mixing pump set and the conveying pump and used for controlling the mixing ratio of the sizing material A and the sizing material B. The two sizing materials are separately conveyed and finally mixed and solidified in the material mixing pipe assembly, so that the phenomenon that a conveying pipeline is blocked is avoided.

The invention provides a blockage detection method, device and equipment for a feeding nozzle and a storage medium. The blockage detection method comprises the steps that the flow of feed liquid output from a feeding pump is obtained; determining a target operation frequency of the feed pump based on the flow and an expected flow; and based on the target operation frequency, the blocking state of the feeding nozzle is determined. By adopting the technical scheme provided by the invention, the blockage of the feeding nozzle can be detected and identified in time.

The utility model discloses a printing ink feeding box for a cone sand mill, which belongs to the field of sand mills and comprises a box body, a feeding port communicated with the box body is arranged at the top of the box body, a feeding pump is arranged at the position close to the bottom of the box body, and a filter screen is arranged in the box body. The box body is provided with a stirring mechanism used for preventing the printing ink from precipitating and preventing the filter screen from being blocked, the side face of the box body is provided with a heating assembly, the stirring mechanism comprises a motor set arranged at the top of the box body, and the output end of the motor set is provided with a stirring blade located in the box body through a connecting shaft. A cleaning assembly is arranged on the connecting shaft, the cleaning assembly comprises a mounting base fixed to the connecting shaft, and a cleaning brush abutting against the surface of the filter screen is arranged on the mounting base through a fixing plate. According to the printing ink feeding box for the cone sand mill, the printing ink quality can be improved through the stirring mechanism, stable operation of equipment is guaranteed, the service life of the equipment is prolonged, and the production efficiency is improved.

The utility model discloses a combined type feeding pump convenient to disassemble and assemble. The combined type feeding pump comprises a pneumatic connecting disc. The pneumatic connecting disc is used for supporting a feeding pump element, and a pneumatic pump driving assembly, a hydraulic mechanism connecting assembly and a split connecting and fixing assembly are arranged on the pneumatic connecting disc. The pneumatic pump relates to the technical field of pneumatic pumps, and has the following beneficial effects that the air inlet of the pneumatic pump is connected with the reversing valve, and the output pressure of the pneumatic pump can be changed on the basis of not changing the size of the pump body by controlling the change rate of the flow direction of air in the reversing valve; by means of the hydraulic mechanism connecting assembly and the split connecting and fixing assembly, the pneumatic part and the hydraulic part of the whole feeding pump mechanism can be rapidly disassembled and assembled, and the feeding pump can be more convenient to use.

The invention belongs to the technical field of fine chemical engineering, and particularly relates to a citral full-continuous chemical synthesis method. A plurality of feeding pumps, a mixer, a microreactor, a back pressure valve, a liquid-liquid separator and an online filter are connected according to a citral linear synthesis route to form a fully continuous chemical synthesis device, so that fully continuous chemical synthesis of citral is realized; products with consistent quality can be stably produced, the integration degree is high, the occupied area for production is small, the unit productivity is high, meanwhile, the yield can be adjusted according to requirements, and the amplification effect existing in a kettle type process is avoided.

The utility model discloses a feeding device for feeding in a rice field crayfish breeding ditch, and relates to the technical field of crayfish breeding, in a crayfish field, a plurality of groups of equally divided breeding sub-fields are arranged in the crayfish field, a conveying pipeline is arranged in the crayfish field, the conveying pipeline comprises a main crayfish ditch and an auxiliary crayfish ditch, and a feed pump station is arranged at the upper end of the crayfish field. The feed pump station is communicated with the main shrimp ditch, a feed mixing part and a pressurizing part are arranged in the feed pump station, and pipeline regulation and control assemblies are arranged at the positions of the main shrimp ditch and the auxiliary shrimp ditch. By the adoption of the feed throwing device, feed can be evenly thrown into the breeding sub-fields, the guiding amount of the feed guided into the auxiliary shrimp ditches is measured through the flow meter, the drainage plate is closed after the adding amount reaches the specified amount, feed feeding of one set of breeding sub-fields is completed, and the feeding efficiency of the breeding sub-fields is improved. The subsequent breeding sub-field putting method is performed in the same manner, so that proper feed density and feed use uniformity are ensured.

The invention discloses a negative pressure purification method and device for electronic grade triethyl phosphate, and the method comprises the following steps: S1, carrying out pretest on an equipment main body, a vacuum system, a heat conduction oil system, a cooling system and an instrument control instrument, and ensuring that all test indexes meet requirements; s2, opening a vacuum pump to vacuumize the vacuum buffer tank with condensation; meanwhile, refrigerant circulation of the vacuum condenser is started; s3, the raw materials are conveyed to the light component removal tower through a raw material feeding pump and a raw material feeding flow meter for controlling the feeding flow; s4, light component removal by a light component removal tower: when the content of light components at the bottom of a sample detection tower meets the requirements, conveying materials at the bottom of the light component removal tower to the heavy component removal tower through a heavy component removal tower feeding pump; s5, de-weighting by a de-weighting tower, and conveying the material to a product tank when the sampling is qualified; and S6, filtering to obtain an electronic-grade TEPO product. The boiling point of TEPO is reduced through negative pressure, and high-temperature decomposition is avoided; equipment is simplified through two-stage rectification (light component removal and heavy component removal); impurity introduction and material loss are reduced through nitrogen protection and vacuum condensation.

The utility model discloses an MLCC slurry tank cleaning system which comprises a mixing tank A, a mixing tank B, a grinding main machine, a feeding pump and a pressure pump. The pressurizing pump is connected to the discharging main pipe, and the discharging main pipe on one side of the outlet end of the pressurizing pump is in bypass connection with a cleaning main pipe; a fifth electromagnetic valve is arranged on the discharging main pipe close to one side of the grinding main machine, and a sixth electromagnetic valve is arranged on the cleaning main pipe; a first high-pressure cleaning nozzle is mounted at the top of the ingredient tank A, a second high-pressure cleaning nozzle is mounted at the top of the ingredient tank B, the cleaning main pipe is respectively connected with a first cleaning branch pipe and a second cleaning branch pipe, the first cleaning branch pipe is connected with the first high-pressure cleaning nozzle, and the second cleaning branch pipe is connected with the second high-pressure cleaning nozzle; a seventh electromagnetic valve is arranged on the first cleaning branch pipe, and an eighth electromagnetic valve is arranged on the second cleaning branch pipe. The utility model can solve the problem that the pipeline and the feeding pump of the whole grinding system are blocked by a dry and hard mixture generated by feeding, stirring and sputtering of the double slurry tanks.

The invention relates to the technical field of medical dressing production equipment, and discloses self-cleaning filling residue-free production equipment for high-viscosity medical dressings, which comprises a rack, a shell is mounted on the outer side of the rack, and a filling base is mounted on one side of the bottom of the rack; a high-pressure feeding assembly, a cleaning assembly and a filling head assembly are arranged between the rack and the shell; the high-pressure feeding assembly is arranged, specifically, a buffer tank is matched with pressurized conveying to replace a traditional conveying pump, the problem that material residues are difficult to clean due to the fact that the structure of the conveying pump is compact is solved, meanwhile, the pressure is accurately controlled through an electromagnetic pressure release valve, it is ensured that high-viscosity dressing is conveyed stably, and the conveying efficiency is improved. The filling amount error caused by pressure fluctuation is avoided, the conveying stability is guaranteed, meanwhile, the problem that a conveying pump is compact in structure and difficult to clean is solved, and the risk of bacterium breeding is reduced fundamentally.

The utility model relates to the technical field of biochemical engineering, and discloses white birch juice membrane concentration system equipment which comprises a circulating tank, a cleaning tank, a feeding pump, a booster pump, a circulating pump, a membrane concentration element, a heat exchanger and a control cabinet, a concentrated liquid outlet of the membrane concentration element is communicated with a liquid inlet of the circulating tank through a pipeline, a filtrate outlet of the membrane concentration element is communicated with a liquid inlet of the cleaning tank through a pipeline, and a liquid outlet of the circulating tank is communicated with a liquid inlet of the feeding pump through a stock solution valve; a liquid outlet of the cleaning tank is communicated with a liquid inlet of the feeding pump through a first cleaning valve. According to the device, refined concentration and separation of the extracting solution are realized, the content of impurities can be remarkably reduced, the quality of the birch juice concentrated solution is improved, and the purity and the stability of the birch juice concentrated solution are improved.

The invention discloses a method and a system for controlling the net positive suction head of a water feeding pump set of a thermal power plant, and belongs to the technical field of automatic control of thermal generator sets. The method comprises the following steps: determining an allowable pressure change lower limit of a deaerator by acquiring the actual available net positive suction head of an inlet of a water feeding pump; acquiring the time required for water in the deaerator to flow to the inlet of the water feeding pump; according to the lower pressure change limit and time of the deaerator, the condensed water flow increment for preventing insufficient net positive suction head of the water feeding pump is obtained; determining a condensed water flow limit value for preventing insufficient net positive suction head of the water feeding pump; when the actual condensed water flow is larger than the condensed water flow limiting value, the output of the deaerator liquid level automatic control module is limited to be increased; when the actual condensed water flow is smaller than the condensed water flow limit value or the condensed water flow increment is a negative number, the deaerator liquid level automatic control module works normally. According to the method, the insufficient net positive suction head of the water feeding pump set is prevented by limiting the flow of the condensed water in the accident state, and the safety and stability of thermal power plant operation are improved.

The utility model relates to an organic intermediate rectifying device which comprises a rectifying tank, a discharging pipe is arranged at the upper end of the rectifying tank, a discharging opening is formed in the lower end of the rectifying tank, the side face of the rectifying tank is connected with a feeding pump through a feeding pipe, the feeding pump is connected with a raw material box through a raw material pipe, an electric heating pipe is arranged at the lower end of the rectifying tank, and the discharging pipe penetrates through a cooling box to be connected with a material storage box. According to the organic intermediate rectification device, the heating temperature is accurately controlled, solute and solvent can be better separated, and the product purity and quality are improved.

The utility model relates to the technical field of paint coating equipment, and discloses an automatic feeding and recycling device for paint coating, which comprises a paint feeding and recycling tank body, a fixed seat is fixed at the bottom of the paint feeding and recycling tank body, and a feeding pump is mounted at the top of the fixed seat; the device is provided with an auxiliary stirring mechanism, when a metal mounting column reciprocates, the outer wall of the coating feeding and recycling tank body can be intermittently loaded, vibration generated by intermittent impact can destroy the agglomeration phenomenon of particles in the coating, and a'dynamic + static 'dual anti-precipitation mechanism is formed by matching with an anti-precipitation stirring device in the coating feeding and recycling tank body, so that the uniformity of the coating is ensured; the device is provided with the reinforcing mechanism, after the recycling pipeline is connected with the filtering box body, the protection sleeve and the supporting sleeve are conveniently fixed, the inner walls of the protection sleeve and the supporting sleeve are tightly attached to the outer side of the recycling pipeline, the connection reliability of the connecting part of the recycling pipeline is enhanced through physical reinforcement, and installation and use stability is guaranteed.

The present invention provides a new type of material pump, which relates to the technical field of material feeding equipment. It includes: a pump body assembly, a piston assembly and a drive assembly; the pump body assembly includes an internal chamber for accommodating rubber material and a feed port and a discharge port connected to the internal chamber; the internal chamber is indented with an extrusion chamber near the discharge port, and the extrusion chamber is located between the feed port and the discharge port; the piston assembly is arranged in the internal chamber, and the piston assembly can reciprocate along the opening direction of the internal chamber, and is tightly matched with the extrusion chamber so that the piston assembly can move along the opening direction of the extrusion chamber, so as to press and convey the rubber material input from the feed port to the extrusion chamber to the discharge port; the drive assembly is used to drive the piston assembly to move in the internal chamber. It has a simple structure and is easy to operate, and is suitable for the injection or coating of high-viscosity rubber materials and metering, avoiding the limitations of existing screw pumps.

This utility model relates to the technical field of feeding devices, and discloses a feed feeding device for laying hen farming, including a device frame. A second fixing plate is fixedly connected to the outer wall of the device frame, and a feed pump is fixedly connected to the inner wall of the second fixing plate. A feed bend is fixedly connected to the input end of the feed pump, and a discharge nozzle adjustment assembly mechanism is provided at one end of the feed bend. The discharge nozzle adjustment assembly mechanism includes a feed pipe and a connecting buckle. The other end of the feed pipe is fixedly connected to one end of the feed bend, and the other end of the feed pipe is slidably connected to the inner wall of the connecting buckle. In this utility model, a sliding discharge nozzle is set in a slot opened on the side of the feed pipe, so that the sliding discharge nozzle can move up and down within the feed pipe, realizing the adjustment of the height of the discharge nozzle to adapt to feed troughs of different heights in chicken houses. Furthermore, multiple feed pipes can be assembled by connecting buckles, realizing the delivery of feed by multiple discharge nozzles.

The utility model relates to the field of equipment for microbial fermentation, concretely to a feeding device for microbial fermentation tank, including the fermentation tank body, the fermentation tank body top is fixedly arranged with the feed inlet, the feed inlet inboard is movably arranged with the feeder, the feeder top is fixedly arranged with the feeding pipe, the feeding pipe one end fermentation tank body one side is fixedly arranged with the feeding tank, the feeding tank outside is fixedly arranged with the inside view window, the feeding tank top is fixedly arranged with the stirring motor, the stirring motor below fermentation tank body inboard is fixedly arranged with the stirring frame, this kind of device extracts from the feeding tank through the feed pump, then utilizes the feeding pipe and the feeder to convey to the fermentation tank body, and the feeding tank is provided with the stirring motor, can drive the stirring frame rotation through two synchronous gear, thereby utilizes the stirring frame to agitate the nutrient mixed solution in the feeding tank, mixes all kinds of nutrient solution evenly, thereby guarantee that the nutrient mixed solution can better provide the nutrition for the microorganism.