35results about How to "Large block" patented technology

An apparatus for cutting a product includes a conveyor assembly and a slitter assembly. The conveyor assembly conveys the product in a feed direction and defines a conveyance surface, on which the product is conveyed. The slitter assembly slits the product into strips as the product is conveyed in the feed direction. The slitter assembly comprises a plurality of cutting elements arranged in a V shape and overlapping one another in the feed direction, as viewed in a direction substantially normal to the conveyance surface. A chopping assembly is positioned downstream of the slitter assembly. The chopping assembly comprises an elongated blade, which moves in an elliptical cutting motion, such that it has a component in the downward direction to sever the strips of product, and a component in the feed direction to toss the severed pieces of product in the feed direction.

The invention relates to a movable slide bed tunnel type coke oven and a use method thereof, and belongs to the field of coal processing and conversion and coking equipment. The coke oven comprises an oven body (48), a front sealing door (7) of the coke oven body, a back sealing door (25) of the coke oven body, a sub-flue (10), a bottom flue (12) and a main flue (6), and is characterized by comprising a coaling preparation chamber (3), a preheating section (50), a carbonization section (51), coke dry quenching section (52) and a coke outlet preparation chamber (23), each part has different structures, and the five parts are connected in series and communicated with each other; and a movable slide bed (37) of loading briquettes or tamping coal materials (44) sequentially pass through the five parts of the coke oven by intermittently moving on a slideway (35) of the slide bed, so that the coal materials are carbonized into coke. The produced coke has uniform specification, large lumpiness, good strength, high heat energy utilization rate, high degree of mechanization, and clean emission of flue gas, and the invention effectively protects atmosphere and water sources and realizes clean production.

The invention discloses a blending method of dry coke quenching dust-removal ash in a coal blending process. The blending method comprises the following steps: transporting dust-removal ash generated by dry coke quenching every day to a coal storage yard through an ash discharge opening, arranging the dust-removal ash near low-sulfur coking coal of which the content of sulfur is less than 0.4% and low-ash meager lean coal of which the content of ash is less than 8.5% which can be blended for separately storing; according to the blending ratio required by the blending instruction of a forklift in a coal blending workshop, fully and uniformly blending the dry coke quenching dust-removal ash, low-sulfur coking coal and the low-ash meager lean coal at a weight ratio of 1:5:5 to form novel mixed dust-removal ash; conveying the mixed dust-removal ash to a coal blending bin, blending the mixed dust-removal ash and 1 / 3 coking coal, gas coal, coking coal and meager lean coal at a weight ratio of 7: 3 and rich coal to form into-the-furnace coal, crushing the into-the-furnace coal, adding water and conveying to the coal storage bin for coking coal production to replace partial meager lean coal for return blending and coking, wherein the mixed dust-removal ash, the 1 / 3 coking coal, the gas coal, the coking coal and meager lean coal at a weight ratio of 7:3 and the rich coal respectively account for 15%, 32%, 15%, 21% and 17% of the into-the-furnace coal in weight ratio. The process is convenient to operate and has the characteristic of high flexibility.

The invention provides an energy-saving and environment-friendly swelling brick, which relates to a material for building. In order to overcome the deficiency caused by common clay red bricks which consumes a great land resources and energy, and has serious pollution, small size but heavy deadweight, poor heat insulation performance, and increase of the total construction cost; the swelling brick of the invention takes argillo-arenaceous rock as main material, which enters a high temperature rotary furnace to charge oxygen and pressure for swelling after crushing and screening, then a secondary heating is performed after producing the swelling body, finally the shape is formed by mechanical squeezing. The swelling body after shaped by squeezing also can be mixed with the cement, the fly ash and the concrete additive. After mechanically agitating and watering, the swelling body is conveyed to a silo for squeezing to form the swelling brick which is characterized by light weight, rigid body, heat insulation, and fire resistance, nontoxic and being durable, thus being an ideal energy-saving building brick.

A method for preparing coke. The invention provides a method for preparing molded coke in a vertical coke oven. The method of the invention includes dry distillation of main coking coal, anthracite, coke powder, pitch and petroleum coke as raw materials. In the invention, the blended coal is stirred at high temperature and high pressure according to a certain proportion, shaped, charged in a furnace, and carbonized to obtain molded coke. This formula effectively solves the impact of colloidal body changes during high temperature and rapid heating. The coke quality reaches the national standard first-level rate of more than 95%. It has uniform product specifications, large lumps, high strength, low porosity and reactivity, and ash content. The characteristics of low sulfur content.

The invention belongs to the technical field of cutting mechanism of tunneling machine, particularly provides a cutting mechanism for a multi-arm hob-type continuous tunneling machine, and solves the problems of an existing cutting mechanism of a continuous tunneling machine, such as unsuitability for hard rock tunnel and low rock breaking efficiency. The cutting mechanism comprises a slewing bearing, three outer rotation arms, an inner rotation arm, a disc hob and a swinging cylinder. The slewing bearing comprises an inner ring and an outer ring; the outer ring is fixed on a frame of the tunneling machine; the inner ring is connected to a motor output shaft of the tunneling machine; and outer rotation arms and the inner rotation arm are hinged to the inner ring through pins. The invention has beneficial effects of solving problems of weak rock breaking effect and low production efficiency of a longitudinal tunneling machine, reducing dust generation, improving cutting efficiency, and realizing forming of different section contours.

The invention discloses a method for preparing block graphene aerogel. The method includes the specific steps that cheap small molecule epoxy propane serves as a cross-linking agent and is mixed with oxidized graphene or graphene dispersion liquid, a hydrothermal method is utilized to obtain graphene wet gel, drying is further conducted, and the graphene aerogel is obtained. The method is simple in operation step, good in repeatability, mild in reaction condition and suitable for industrialized production, the price of the cross-linking agent is low, and the finally obtained graphene aerogel is complete in block degree, low in density, good in elasticity and high in mechanical strength.

The invention provides a coking method for increasing the degree of tamped coke lumps and tamped coke prepared by the method. In the method, the coking time, coking rate, and heating standard temperature during the tamping coking process are adjusted according to the actual index of the incoming coal relative to the benchmark index and the coke quenching method, so as to increase the lumpiness of the tamping coke. The method can not only improve the lumpiness of tamping coke, but also is suitable for coking production of any furnace type tamping coke oven, and there is no difficulty in pushing coke during coking production, and the coke oven wall will not be damaged.

The invention relates to the field of coal chemical industry, in particular to a molded coke and its preparation method and application. The preparation method of the molded coke includes: (1) pressing the mixed coal obtained by mixing raw materials to obtain molded coal; based on the total weight of the raw materials, the raw materials include: coke powder 15-25wt%, fat coal 60 ‑70wt%, anthracite 5‑15wt%; (2) put the briquettes into a coke oven at room temperature, raise the temperature of the coke oven from room temperature to 1000‑1200°C at a rate of 6‑10°C / h, and Dry distillation at ‑1200°C for 380‑480 hours to obtain molded coke. The molded coke obtained by the invention has very few internal cracks, large blockiness, high heat intensity and low ash content, so that it has broad application prospects.

The invention discloses coke and a preparation method thereof. The coke is made by coking of mixed coal; the mixed coal comprises, by weight, 65-75 parts of 1 / 3 coking coal, 5-10 parts of lean coal, 15-20 parts of coking coal, and 3-8 parts of meager lean coal. The coke and the preparation method thereof have the advantage that the coke has high crushing strength and wear resistance.

The invention belongs to the field of stone materials and artificial synthetic stones, particularly relates to a preparation method of ecological synthetic stone, and provides a preparation method of the ecological synthetic stone, which aims to improve the utilization value of the minerals such as ophiolite, tremolite, diopside, perlite and quartzite jade and aims to improve the environment purification performance of the synthetic stone at the same time. The preparation method is characterized in that the ecological synthetic stone is prepared from the following components in mass part: 70-90 parts of basic material, 7-25 parts of auxiliary material and 3-23 parts of polymerized material; a quarry stone or a thin sheet is prepared through the working procedures of splitting or breaking, sand agitation, vacuum material distribution, and quarry stone formation or thin sheet formation; a polymerized plate is prepared through the working procedures of saw cutting and grinding. With adoption of the product prepared through the method, an electromagnetic field and an anion release effect both beneficial to the human body can be produced, the appearance of the synthetic plate can be improved, the self cleaning and bacterium elimination effects can be achieved, and the synthetic product has better environment purification performance.

The present invention is method and device for making stone plate roasted meat. The device has two matched stone plate in the same size, including one upper cover plate and one lower roasting plate. The making process of stone plate roasted meat includes the following steps: heating the roasting plate inside some furnace to 200-300deg.c; smearing edible oil in the matched surface of the cover plate and spreading meat slices on the roasting plate and covering to stew for 2-5 min; turning the meat slices and covering to stew for 1-4 min; spreading salt on meat slices and covering to stew for 1-3 min, and turning the meat slices and covering to stew for 1-5 min; and spreading seasoning to both sides of meat slices and covering to stew for 0.5-2 min to make well roasted meat. The making process has no direct contact of meat to flame and homogeneous heating and is safe and sanitary, and the roasted meat is delicious.

The invention discloses coke with excellent thermal property and a preparation method. The coke with the excellent thermal property is formed by coking mixed coal, wherein the mixed coal is prepared from the following components in parts by weight: 45 to 55 parts of one-third coke, 10 to 20 parts of meager-lean coal, 15 to 25 parts of coking coal, 3 to 8 parts of blended coal and 10 to 15 parts offat coal. The coke with the excellent property, disclosed by the invention, has the beneficial effects of low reactivity and high strength after reaction.