7results about How to "Improve kneading efficiency" patented technology

The invention discloses a method for removing mica from granite machine-made sand, which comprises the following steps: S1, screening and grading semi-finished machine-made sand to obtain coarse sand and fine sand; s2, the coarse sand is subjected to winnowing to remove flaky mica, and a heavy product and a light product are obtained; s3, fine mica with weak magnetism is removed from the fine sand through high-gradient wet magnetic separation, and a non-magnetic product and a magnetic product are obtained; s4, combining the heavy product with the non-magnetic product to obtain the mica content lt; and 2% of full-size machine-made sand. According to the method and system for removing mica from granite machine-made sand, the coarse material and the fine material are screened firstly, then through coarse material winnowing and fine material magnetic separation, the mica content in the whole size fraction of the machine-made sand can be effectively reduced, and the requirement that the mica content is smaller than or equal to 2% in the national standard and the industrial standard is met; and the mica is rubbed before screening, so that the mica is fully separated from sand and gravel materials, adhesion is avoided, subsequent screening can be facilitated, and the screening effect and the quality of screened finished products are guaranteed.

The invention relates to the technical field of kneading machines, and discloses a kneading machine and a kneading method of a silicone rubber material. Comprising a rack and further comprises a reversible kneading frame, a winding mechanism is installed on the kneading frame, an electric heating shell plate capable of being wound and unwound in a reciprocating mode within a set stroke is wound on the winding mechanism, a driven rotating stand is rotationally connected to the kneading frame, and a reciprocating driving component is installed on the rack. The reciprocating driving component is in transmission connection with a vibrating and pinching table capable of moving in a reciprocating mode in the rotating axis direction of the driven rotating frame and a rotatable mandrel, the mandrel is rotationally sleeved with a forward rotating shaft, the forward rotating shaft is rotationally sleeved with a backward rotating shaft, and the forward rotating shaft and the backward rotating shaft are both in linkage with the mandrel. According to the kneading machine, after the vibration kneading table reciprocates, the relative positions of the stirring rod and the spiral kneading blade and the kneading frame are reciprocatingly changed, and cyclic change and cyclic disturbance of the processing position of a silicone rubber material in the kneading machine are realized.

The utility model relates to an anti-entrainment kneading machine, which belongs to the technical field of kneading machines and comprises a kneading shell, a top cover is hinged to the top of the kneading shell, a sliding groove is formed in the top of the top cover, a feeding assembly is arranged at the top of the top cover, and the feeding assembly comprises a feeding hopper slidably mounted in the sliding groove. Two control blocks are fixedly mounted on the side face of the feeding hopper, two mounting vertical plates are fixedly mounted at the top of the top cover, and driving assemblies for driving the control blocks to move are arranged on the two mounting vertical plates. According to the anti-involving kneading machine, the slidable feeding hopper is arranged in the sliding groove of the top cover, the driving assembly drives the feeding hopper to move left and right, when materials are kneaded in the kneading shell, a worker puts the materials needing to be added into the feeding hopper, the feeding hopper moves left and right, the materials are evenly put into the kneading shell, and the kneading efficiency is improved.

The invention discloses high-dosage rubber powder modified asphalt and a preparation method thereof, and the rubber powder modified asphalt is prepared by adding 22-30 parts by weight of modified rubber powder into 100 parts by weight of road petroleum asphalt, the modified rubber powder is prepared from the following components in parts by weight: 85 to 95 parts of common rubber powder, 3 to 6 parts of phenolic resin, 0.6 to 1.2 parts of microcrystalline wax, 2 to 5 parts of naphthenic oil, 0.2 to 0.6 part of antioxidant and 0.2 to 0.6 part of EVA (Ethylene Vinyl Acetate). The preparation method comprises the following steps: (1) preparing the modified rubber powder; and (2) preparing the modified asphalt cement. According to the invention, co-melting and blending of the rubber powder and the asphalt are improved, the mixing amount of the rubber powder in the rubber asphalt can be obviously increased, the pavement and durability are greatly improved, the production cost and environmental pollution of the asphalt mixture are effectively reduced, and the asphalt mixture has economic and social double benefits, is simple in preparation process and has relatively high practical application value.

The utility model discloses a kneader with a preheating structure, which comprises a bottom bearing plate, one side of the top of the bottom bearing plate is fixedly connected with two groups of groove body support frames, the tops of the groove body support frames are fixedly connected with a kneading groove, and the top end of a support column is provided with a raw material preheating structure. According to the kneading machine with the preheating structure, through the arrangement of the hopper, the first servo motor, the cylindrical feeding pipe, the electric heating sleeve, the feeding threaded roller and the bearing plate, when the kneading machine is used, raw material particles are fed into the hopper, the first servo motor drives the feeding threaded roller to continuously rotate, and the particles slowly move forwards along the cylindrical feeding pipe; and the particles which are softened by high temperature generated by the electric heating sleeve and are preheated and softened enter the kneading groove, so that the kneading and whipping time can be shortened, the kneading efficiency is improved, the function of preheating and softening the raw materials is realized, and the problem that the device does not have the function of preheating and softening the raw materials is solved.

This invention discloses an industrial powder metallurgy kneader, specifically relating to the field of kneaders. It includes a kneading box, a top cover, a discharge chute, and a feeding box. The top cover is installed on the top of the kneading box, and the feeding box is connected to one side of the top of the kneading box. The discharge chute is welded to the bottom of the kneading box. A kneading mechanism is installed inside the kneading box, and an opening and closing mechanism is provided at the bottom of the kneading mechanism. A discharge mechanism is installed in the discharge chute. A pressing mechanism is supported on the top cover. A sealing mechanism is installed at the bottom of the feeding box, and a discharging mechanism is provided at the bottom of the sealing mechanism. A first support frame is welded to one side of the kneading box, and one end of the kneading mechanism is installed on the top of the first support frame. One end of the opening and closing mechanism is connected to the first support frame. A connecting pipe is welded to the bottom of the feeding box. This invention has the advantages of being able to compact materials during mixing, improving the uniformity of mixing and kneading efficiency. It also facilitates feeding and avoids mixing between the feeding process and the kneaded materials.

The utility model discloses a powder kneader for rapid fibration, which comprises a rack, a speed reducer, a sliding bearing, a torque limiter, a differential gear box and a kneading assembly, the kneading assembly comprises a kneading shell, a temperature control jacket, a pressing plate, a pressing cover, a kneading mechanism I and a kneading mechanism II, the first kneading mechanism comprises a first rotating shaft and a first kneading blade, the second kneading mechanism comprises a second rotating shaft and a second kneading blade, and the first kneading blade and the second kneading blade which are arranged in a spiral mode can push materials from the two ends of the kneading shell to the center when the materials are kneaded, so that a regular accumulation area is not formed when the materials are kneaded; the problem of laminar flow pressure concentration is avoided, the material kneading efficiency is effectively improved, in addition, the torque limiter is arranged to disconnect transmission when the torque reaches a threshold value, and therefore it is guaranteed that equipment cannot be damaged in the using process, and the service life of the equipment is prolonged.