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182 results about "Hammer mill" patented technology

A hammer mill, hammer forge or hammer works was a workshop in the pre-industrial era that was typically used to manufacture semi-finished, wrought iron products or, sometimes, finished agricultural or mining tools, or military weapons. The feature that gave its name to these workshops was the water-driven trip hammer, or set of hammers, used in the process. The shaft, or 'helve', of the hammer was pivoted in the middle and the hammer head was lifted by the action of cams set on a rotating camshaft that periodically depressed the end of the shaft. As it rose and fell, the head of the hammer described an arc. The face of the hammer was made of iron for durability.

Novel martensitic wear resistant steel and production technology for steel casting thereof

The invention particularly relates to novel martensitic wear resistant steel and a production technology for steel casting thereof, belonging to the technical field of wear resistant steel in iron and metal metallurgy and foundry industry. Chemical components in the novel martensitic wear resistant steel comprise, by weight, C 0.3% to 0.5%, Si 0.8% to 1.5%, Cr 2.1% to 2.5%, Mn 0.8% to 1.5%, Ni 0.7% to 1.2%, Mo, 0.6% to 1.0%, Nb 0.1% to 0.3%, Ti 0.1% to 0.5%, Re 0.04% to 0.05%, and P and S no more than 0.04, with the balance being Fe. The production technology for steel casting comprises a smelting process, a casting process, a heat treatment process and quality inspection. The novel martensitic wear resistant steel provided in the invention can be used for liner plates of ball mills, hammerheads of hammer mills or the like used in metallurgic mines under the condition of low impact, is applicable to wear resistant products used in various mines like gold mines, iron mines and cement quarries, and is a novel wear resistant material capable of substituting conventional high manganese steel. According to results of utilization in ore dressing factories for iron ore and cement, the novel martensitic wear resistant steel has an improved service life 2 to 2.3 times longer than the high manganese steel.
Owner:ANSTEEL GRP MINING CO LTD

Automatic crushnig and sorting equipment of garbage and method for sorting out foreign substance in the garbage

Disclosed are an automatic crushing and sorting equipment of garbage and a method for sorting foreign substances in the garbage. The equipment includes a case having a perforated base plate and a discharge outlet for sorting out and discharging organic matters and foreign substances in garbage charged through a hopper; a striking cover plate for letting the garbage carried from the case being collided and crushed; a vertical partition for isolating the perforated base plate from the discharge outlet; a drive shaft passing through the case in a longitudinal direction of the case such that both end parts thereof projecting from both sides of the case are rotated; and a plurality of hammer mill assemblies successively and fixedly installed on the drive shaft, and being sequentially titled while maintaining a predetermined deviation in angle between unit members so that the garbage is crushed into a micro-sized particles and carried by maintaining a minute gap between end parts of the hammer mill assemblies and the inner surface of the striking cover plate to collide the garbage with the striking cover plate. The present invention has an advantage of recreating available resources and minimizing environmental pollution since a huge volume of garbage dispensed from households, restaurants, etc. are crushed into a wanted size and at the same time foreign substances in the garbage are automatically sorted out and completely separated.
Owner:DREAMBIOS CO LTD +1

Rotation-revolution combined down-hole hammer and construction method thereof

The invention discloses a rotation-revolution combined down-hole hammer. A front end of a hammer body (42) of a hammer (4) is provided with a cylindrical guide sleeve (47); the neck part of a hammer bit (45) is provided with a cylindrical guide shaft (49); the cylindrical guide shaft (49) of the hammer bit (45) is inserted into the cylindrical guide sleeve (47) at the front end of the hammer body(42) and positioned through a split limiting ring (48), so that the hammer bit (45) can axially move and be coaxially and rotatably arranged on the hammer body (42); the hammer bit of the hammer can relatively rotate; when the combined down-hole hammer punches rotatably, the hammer bits of a plurality of small-diameter hammers can also rotate while the hammer bits revolute; and a damping adjustment ring is arranged in an air dividing device. The invention provides the combined down-hole hammer and a construction method thereof; and a hard alloy head on the hammer drill is worn towards equilibrium, so that the working efficiency can be improved and the service life can be prolonged, and the combined down-hole hammer has low cost, a rational structure, high punching efficiency and long service life, is easy to maintain, convenient to disassemble and reliable to seal and can save energy.
Owner:SUNWARD INTELLIGENT EQUIP CO LTD

Pasturage combine harvesting disintergrator

The invention belongs to a forage combine harvesting and grinding machine that integrates picking, grinding, collecting and loading of main-field forage or straw-type crops after the forage or the crops are harvested. The machine comprises a hammer mill mounted on a chassis, which is provided with wheels and towed by a tractor; a pickup device provided with elastic claws which are evenly distributed on the roller surface is mounted in the front of the chassis; an antithetic spiral conveyor roller provided with cutters which are evenly distributed on the roller surfaces is mounted in back of the pickup device; the discharge hole of the conveyor roller is connected with the feeding hole of the hammer mill. The discharge hole of the hammer mill is connected with the feeding hole of the spiral conveyor which inclines upwards; the feeding hole of the spiral conveyor communicates with a hydraulically controlled grass storage device which can automatically unload the grass. The machine can complete the processes such as picking up the forage or straws from the field, feeding, grinding, conveying and loading on a one-off basis, thus reducing labor intensity, saving manpower, curtailing agricultural equipment, raising production efficiency, ensuring safe production, facilitating operation and maintenance, as well as improving the forage quality.
Owner:杨学仁

Multi-function crusher

The invention discloses a multi-function crusher. The multi- function crusher comprises a base seat and a crusher shell, wherein the crusher shell is arranged on the base seat. A crushing room is arranged inside the crusher shell. An upper feeding inlet is arranged at the top end of the crushing room. A left feeding inlet and a right feeding inlet are respectively arranged on the left side of the crushing room and the right side of the crushing room. A main shaft is arranged inside the crushing room. A hammer carrier which corresponds to the upper feeding inlet is arranged in the middle portion of the main shaft. The hammer carrier is provided with multiple hammer sheets. A blade set which corresponds to the left feeding inlet is arranged on the left side of the main shaft, and a right blade set which corresponds to the right feeding inlet is arranged on the right side of the right feeding inlet. The lower portion of the crushing room is provided with a plurality of filter screens which are provided with multiple sieve pores. Section of each the sieve pore is of a trumpet shape with the upper portion small and the lower portion big. A discharging port is arranged at the right end of the bottom portion of the crushing room. The multi- function crusher combines the advantages of a hammer mill, a slicing machine and a hay cutter and the like. Further, the multi- function crusher is provided with the upper feeding inlet, the left feeding inlet, and a right feeding inlet, and according to different materials, different blades are arranged, and therefore, the effect of multi-purposes of a crusher is achieved.
Owner:涂佳永

Energy-saving heat retaining rectangular-hole porous brick

InactiveCN102795877AMeet the requirements for the production of porous bricksCeramicwareTunnel kilnBrick
The invention discloses an energy-saving heat retaining rectangular-hole porous brick, prepared through the following steps of: 1) charging coal gangue into a hopper and conveying the same to a raw material processing workshop through a belt conveyor, and then crashing the coal gangue by a hammer mill and screening the same by a rotary screen or a vibrating screen to form coal gangue powder; 2) feeding the coal gangue powder together with building wastes, slags, sludge and water to perform primary stirring and then feeding the mixture to an aging chamber for aging; 3) conveying the aged material to perform secondary stirring and producing green bricks in a vacuum brickmaking machine by the belt conveyor; 4) stacking the green bricks on a kiln car by a hydraulic automatic setting machine and then feeding the green bricks into a drying cavity for drying; and 5) conveying the dried green bricks to the opening of a tunnel kiln by a ferry vehicle and then lifting the green bricks in the kiln for sintering, thereby obtaining finished products of bricks, wherein the bricks comprise the following raw materials by weight percent: coal gangue powder 70-80%, building wastes 5-10%, slags 8-13%, sludge 2-6%, and the balance of water. The energy-saving heat retaining rectangular-hole porous brick is high in strength, high in voidage, low in dead load, good in sound isolation and excellent in heat retaining performance.
Owner:浙江嘉荣新型材料有限公司

Composite anti-seepage structure for red mud tailing ponds

The invention discloses a composite anti-seepage structure for red mud tailing ponds, which comprises an anti-seepage layer, a flexible protective layer and a rigid protective layer, wherein the anti-seepage layer is arranged on a side slope, the flexible protective layer is arranged on the anti-seepage layer, the rigid protective layer is arranged under the anti-seepage layer, an isolating layer is also arranged between the rigid protective layer and the anti-seepage layer, wheat straws or rice straws and clay are mixed to form the isolating layer, and the materials of the anti-seepage layer include polycarbonate, polytetrafluoroethylene, polybutylene terephthalate, fly ash, hammer-milled glass fibers, graft copolymerization acrylic acid derivative, antioxidant, ultraviolet light absorber and anti-aging agent. The physical and chemical properties of the adopted anti-seepage materials are stable, the low-temperature properties and the ageing resistance are excellent, the right-angled tear resistance is high, the reliability of joints is high, the strength of the whole anti-seepage layer structure is high, and the composite anti-seepage structure has extremely high tensile strength and elongation in order to adapt to local anti-piercing strength on sand and stones in a large-area tailing stack, thus ensuring that wastewater from red mud cannot seep into the ground during the usage of the stack.
Owner:乐陵市建兴装饰工程有限公司

Production process for steel casting of martensitic wear-resistant steel

The invention discloses a production process for a steel casting of martensitic wear-resistant steel. The martensitic wear-resistant steel comprises the chemical components by the weight percentage: 0.3%-0.5% of C, 0.4%-0.9% of Si, 1.1%-1.8% of Cr, 0.8%-1.5% of Mn, 0.7%-1.2% of Ni, 0.6%-0.8% of Mo, 0.2%-0.5% of V, 0.1%-0.5% of Ti, 0.07%-0.09% of Re, not more than 0.04% of P and S, and the balance being Fe. The production process comprises the following steps: 1) scrap steel, pig iron, ferrochrome, sponge iron and a smelting additive with an amount of 1-1.5% based on the total mass of the above raw materials are added to an induction furnace for mixing and heating to melt, wherein the smelting additive is prepared from 10-15 parts of sodium oxide, 3.5-4.5 parts of aluminum oxide, 3-5 parts of potassium oxide, 6-8 parts of sodium carbonate, 4-6 parts of silicon dioxide, 11-15 parts of iron oxide, 0.5-2 parts of titanium dioxide, and 5-10 parts of anhydrous borax, and the contents of the chemical components are adjusted according to requirements. Under a condition of relatively low shock, the martensitic wear-resistant steel is applied in ball mill lining plates of metallurgical mines, hammerheads of hammer mills and the like, is applicable to wear-resistant products of gold mines, iron mines, cement and other types of mines, and is a new wear-resistant material instead of conventional high manganese steel.
Owner:湖北洪伯车辆有限公司
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