7results about How to "Stable continuous production" patented technology

The invention provides a sulfamic acid continuous crystallization production device and process, the sulfamic acid continuous crystallization production device comprises a filter box and a production box, the production box is fixedly connected to the upper surface of the filter box through bolts, the top end of the production box is provided with a feeding pipe, the middle part of the interior of the production box is provided with a partition plate, and the middle part of the partition plate is provided with a conveying pipe; a discharging pipe, a production reaction module and a filtering and cleaning module are arranged between the production box and the filtering box. According to the sulfamic acid continuous crystallization production device and the sulfamic acid continuous crystallization production process, in the sulfamic acid continuous crystallization production process, when sulfamic acid crystals are filtered out from mother liquor through the filter cartridge, purified water is sprayed into the filter cartridge through the spray head; and the sulfamic acid crystals can be quickly and uniformly washed to remove impurities through the filter cartridge which continuously shakes in a reciprocating manner in the rotating process, so that the continuous crystallization production efficiency of the sulfamic acid can be effectively improved.

An object of the present invention is to provide a method for manufacturing an injection-molded product of a resin composition containing a P3HA-based resin, capable of performing stable continuous production without generating flash. To achieve the object, provided is a method for manufacturing an injection-molded product by using a mold apparatus for a resin composition containing a P3HA-based resin, the P3HA-based resin being a copolymer containing at least one kind of copolymer of a 3HB unit and another hydroxyalkanoate unit, a parting line that is in contact with a cavity inside a mold included in the mold apparatus having a maximum width of not more than 30 pm, a vent portion being provided at a specific position inside the mold, the vent portion having an opening portion with a maximum width of 1 um to 50 pm.

The application relates to the technical field of plastic particle processing, and discloses a granulating device for processing foamed materials, which comprises a first support, a die head, a flow uniformizing plate and a pelletizing assembly, the die head is fixedly connected with the first support; the flow uniformizing plate is fixedly connected with the surface of the die head where extrusion holes are located, a plurality of first through holes are formed in the flow uniformizing plate, the first through holes correspond to the extrusion holes of the die head in a one-to-one manner, and the depths of the plurality of first through holes decrease in turn along the radial direction of the flow uniformizing plate; the pelletizing assembly is used for pelletizing the pull strips extruded by the flow uniformizing plate. The first through holes with different depths provide differentiated flow resistance for the melt flow rate at different positions, so that the melt flow rate at the outlets of the first through holes tends to be uniform, that is, the instantaneous extrusion amount tends to be equal, thereby improving the uniformity of the diameters of the pull strips, improving the problem of uneven thickness of the pull strips caused by the extrusion amount deviation of the edge holes and the middle holes, and improving the size consistency of the granulating particles and the product quality.

The utility model provides a hose gluing machine head for pipeline repair, which comprises a machine head body, a runner and a core mold are sequentially arranged in the machine head body, the front part of the outer wall of the runner is of a hanger type structure along the axial direction, and the rear part of the outer wall of the runner is of a spiral structure. According to the hose gluing machine head for pipeline repair, the flow channel of the machine head adopts the combination of an axial clothes hanger type and a spiral type, materials are quickly melted and fully plasticized in the flow channel, glue is uniformly coated, the product quality is good, the size of the machine head is small, the matched heating power is small, and the energy consumption is low.

The utility model discloses a production system for continuously preparing a multi-component aramid copolymer, which belongs to the technical field of multi-component aramid preparation devices and comprises a premixing kettle, a continuous reactor and a double-screw reactor which are sequentially connected, the double-screw reactor is connected with a neutralizing tank I through a pipeline I, and an outlet of the neutralizing tank I is sequentially connected with a washing machine and a drying machine; the double-screw reactor is connected with a neutralizing tank II through a pipeline II, an outlet of the neutralizing tank II is sequentially connected with a defoaming kettle, a filter and a spinning solution storage tank, a heat exchanger I is arranged on a pipeline between the premixing kettle and the continuous reactor, and a heat exchanger II is arranged on a pipeline between the continuous reactor and the double-screw reactor. The front end of the continuous reactor and the front end of the double-screw reactor are both connected with a terephthaloyl chloride supply pipeline, the premixing kettle is connected with an auxiliary pipeline and a monomer supply pipeline, the production system provides matched production equipment for continuous preparation of the multi-component aramid copolymer, and stable, continuous, efficient and large-scale production of the multi-component aramid copolymer is guaranteed.

The utility model provides a feeding guide tool for a hot coiling spring, and relates to the technical field of hot coiling spring production and processing, the feeding guide tool comprises a base, the rear end of the surface of the base is connected with a coiling die, one side of the coiling die is connected with an adjusting guide assembly, and the adjusting guide assembly comprises a fixing frame; and a notch is longitudinally formed in the fixing frame, two sets of first bolts are inserted into the notch, the front ends of the two sets of first bolts are connected with a connecting frame, and threaded holes are formed in the surface of the connecting frame. According to the utility model, when the hot coiling spring main body is fed, the feeding angle of the end head can be flattened through guiding of the four groups of bearing main bodies, so that the hot coiling spring main body can be ensured to vertically enter a coiling mold to be fixed, the stable and continuous production is realized, and the production efficiency is improved through a fixing mode of the first bolt and the second bolt. And the angle of the bearing main body can be adjusted, so that the applicability of the device is improved.

The object of the present invention is to provide a method for manufacturing injection-molded articles of resin compositions containing P3HA-type resins that can be stably and continuously produced without burrs. The present invention solves the above-mentioned problem by providing a method for manufacturing injection-molded articles using a mold apparatus employing a resin composition containing P3HA-type resins, wherein the P3HA-type resin is a copolymer comprising at least one copolymer of 3HB units and other hydroxyalkyl ester units, the maximum width of the parting line connecting to the cavity within the mold in the mold apparatus is 30 μm or less, and a venting portion is provided at a specific location within the mold, the maximum width of the opening of the venting portion being 1 to 50 μm.