45results about "Coke oven brickwork" patented technology

The embodiment of the invention provides a vertical heat recovery coke oven. The vertical heat recovery coke oven comprises a coke oven bed bottom, a lower flue, a heat exchange chamber, a chute, a plurality of carbonization chambers, a plurality of combustion chambers and an oven top which are sequentially arranged in the height direction. The lower flue comprises a plurality of transverse arches which are sequentially arranged at intervals, a plurality of longitudinal arches which are sequentially arranged at intervals, at least one flue outlet and a plurality of flue gas inlets, and the transverse arches and the longitudinal arches are mutually crossed and communicated to form a multi-split linked arch. When the lower flue bears a load, the load of the upper masonry is dispersed to a plurality of arch structures through the crossed layout of the multi-split arch, so that an integral stress system is formed, and the furnace body structure of the vertical heat recovery coke oven is more stable. In a high-temperature environment, the arch size of the multi-split combined arch is small, so that the expansion deformation of the arch structure is small, and the problem of leakage is not easy to occur. Meanwhile, high-temperature flue gas is divided by the multi-division structure of the multi-division combined arch, so that the gas flow distribution is more uniform, and the thermal regulation of the coke oven is facilitated.

The invention relates to the technical field of coke ovens, in particular to a heat recovery coke oven cooling channel which comprises cooling channels which are arranged in the length direction of the coke side of a coke oven machine and are completely through, the cooling channels are arranged at intervals, and the heat recovery coke oven cooling channel further comprises a plurality of transverse communicating channels which are perpendicular to the cooling channels and intersect with the cooling channels. The two ends of each transverse communicating channel are connected with the vertical channels of the resisting wall area respectively, and the vertical channels extend upwards to a furnace top chimney. According to the invention, the chimney effect of the vertical channel at the resisting wall can be fully utilized to attract air entering the cooling channel from the machine coke side furnace end to quickly flow, so that the cooling effect is improved.

The utility model discloses coke oven carbonization chamber modularization combined firebrick structure relates to firebrick technical field. The utility model discloses a first firebrick body, first firebrick body one side is installed with second firebrick body, first firebrick body one side is provided with the stop gear, and the stop gear includes the limit slot that sets up respectively in first firebrick body and second firebrick body one side, and the limit block fixedly connected respectively in first firebrick body and second firebrick body other side, and the limit rod is inserted in first firebrick body top. The utility model discloses through the cooperation of stop gear and the joint of mechanism, and the firebrick is combined into modularization unit. When local brick body is damaged, only needs to dismount corresponding unit, need not to remove integral structure, has reduced the difficulty of replacement and maintenance cost significantly, and through the plug -in design of limit block, limit slot and limit rod, the quick positioning and fixation between firebrick have been realized.

The invention discloses a lightweight furnace door brick and a preparation method thereof, the lightweight furnace door brick comprises the following components by weight: 27.4%-35.8% of alumina, 11.3%-17.1% of flint clay, 11.3%-17.1% of cordierite, 8% of alumina micro powder, 5% of silica fume, 7% of calcium aluminate cement, and 10-30% of lightweight aggregate. The lightweight aggregate is matched with the furnace door brick, the material, chemical components and density of the lightweight aggregate are controllable, and the lightweight aggregate can be correspondingly adjusted according to the use condition. Under the composite action of the lightweight aggregate and the air entraining agent, the overall weight and the heat conductivity coefficient of the furnace door brick are reduced, the use cost of refractory materials is reduced, and heat loss is reduced.

An object is to provide a coke oven battery life predicting method that can predict the life of a coke oven battery. A coke oven battery life predicting method for predicting a life of a coke oven battery includes measuring an oven wall shape of each carbonization chamber 14 constituting a coke oven battery with a shape measuring device to identify a bulge 34 bulging inward from an initial position based on hot-state dimensions upon completion of construction of the coke oven, measuring the oven wall shape for the bulge 34 multiple times at different measurement dates and times to determine a regression equation representing a correspondence between time and the amount of bulging, calculating a date and time at which the amount of bulging calculated using the regression equation reaches a predetermined threshold to predict a usable period of the carbonization chamber 14, and predicting a life of the coke oven battery on the basis of the predicted usable period of the carbonization chamber 14.

A problem to be solved by the present invention is to allow a precast block (PB)to be easily installed without misalignment in a battery direction (SD). A guide fixture (5, 6) includes: two guide plates (51, 61) capable of sandwiching a precast block (PB) for a coke oven (1); and a connecting body (52, 62) configured to connect the two guide plates (51, 61) opposing one another. The two guide plates (51, 61) each include a curved portion (512, 612) having an end portion flaring outward.

In a coke oven having a first heating wall and a second heating wall, a cross over duct arranged to fluidly connect the first heating wall and the second heating wall. The cross over duct further comprising a passageway in communication with the first heating wall and the second heating wall.

The invention relates to a coke oven chute opening adjusting structure and method, a chute opening is provided with an adjusting brick groove, the adjusting brick groove is composed of a sliding adjusting groove section and a reverse pushing groove section, a sliding adjusting brick is arranged in the adjusting brick groove, and the sliding adjusting brick is moved through a tool adjusting brick; during adjustment, the tool adjusting brick is arranged in a sliding adjusting groove section between the sliding adjusting brick and the nose bridge brick or a reverse pushing groove section at the other end of the sliding adjusting brick, and the sliding adjusting brick is moved by means of the self weight of the tool adjusting brick; a fixed-distance section is arranged on the tool adjusting brick, and the size of the fixed-distance section is the horizontal distance between the sliding adjusting brick and the nose bridge brick after the sliding adjusting brick moves in place, namely the opening degree of the chute opening; adjusting precision is high, and operation is convenient.

The utility model relates to the technical field of gasification furnaces, in particular to a special-shaped refractory brick for a gasification furnace lining, which comprises a first refractory brick and a second refractory brick, the inner wall of the first refractory brick is attached to the second refractory brick, the inner wall of the first refractory brick and the inner wall of the second refractory brick are both provided with grooves, and the grooves are communicated with the first refractory brick and the second refractory brick. And one end of the first refractory brick and one end of the second refractory brick are fixedly connected with convex blocks. According to the special-shaped refractory brick for the gasification furnace lining, through cooperation of the first refractory bricks and the second refractory bricks, the protruding blocks of the second refractory bricks are connected with the circular grooves of the first refractory bricks in an inserted mode, the multiple first refractory bricks are spliced to the inner wall of a gasification furnace according to the operation, and similarly, a circle of second refractory bricks are installed on the inner walls of the first refractory bricks; the gap between the two second refractory bricks and the gap between the two first refractory bricks are staggered, certain sealing performance is improved, when the space is narrow, an operator can buckle into the groove with hands to carry, and installation can be more convenient.

To provide a refractory for forming a hearth which can easily push out coke from a carbonization chamber and is hardly damaged. Another object of the present invention is to provide a hearth from which coke can be easily pushed out of a carbonization chamber and which is less likely to be damaged.SOLUTION: The hearth forming refractory is laid on the hearth of a coke oven and at least one surface of the refractory is formed of fused silica having a porosity of <3.0%. Further, the hearth is formed by laying the refractory for forming the hearth.SELECTED DRAWING: Figure 3

The application discloses a dry quenching inclined channel formwork and a repairing method of the inclined channel refractory material, which comprises a first body, the first body is a hollow formwork structure, a first pre-connection plate is fixedly arranged on the first body, a second pre-connection plate is fixedly arranged above the first pre-connection plate, the first pre-connection plate is parallel to the refractory bricks at the end of each inclined channel bracket, the second pre-connection plate is parallel to the side wall of each inclined channel bracket, the first body is provided in a whole triangular structure, a prefabricated hole is fixedly arranged on the end face of the first body, the first body is fixed with the inclined channel bracket through the prefabricated hole, a positioning piece is arranged at the center position of the first body, the positioning piece is arranged between the two symmetrical first bodies, two groups of symmetrical prefabricated channel holes are fixedly arranged on the second pre-connection plate, and the prefabricated channel holes are arranged in an upper-lower interval.

To provide a refractory structure of a coke oven, capable of, in a refractory structure of a coke oven, shortening a distance from a top edge of a heat storage body to a ceiling of a top part of a ceiling part space.SOLUTION: Disclosed is a refractory structure of a coke oven having a carbonization chamber and a combustion chamber arranged in an upper stage and a heat storage chamber 1 arranged in a lower stage, wherein the refractory structure of the coke oven is characterized by that: the heat storage chamber 1 is sectioned by a pillar wall 7 between the neighboring other heat storage chamber in a length direction of a coke oven battery 32; a refractory constituting a ceiling part of the heat storage chamber 1 is constituted of a single refractory block (heat storage chamber ceiling part block 15) per the heat storage chamber 1 in the length direction of the coke oven battery 32; and both end parts 16 of the heat storage chamber ceiling part block 15 in the length direction of the coke oven battery 32 are supported by pillar walls 7 on both ends in the length direction of the coke oven battery 32 of the heat storage chamber 1.SELECTED DRAWING: Figure 1

The present disclosure provides an adjusting brick position adjusting system, comprising: a first moving assembly having a bearing wall, the first moving assembly being arranged on a down-regulation pipe of a coke oven and adapted to move along a first direction so that the position of the bearing wall in the height direction of the down-regulation pipe is adjustable, the first moving assembly having a first working position and a second working position; the second moving assembly is arranged on the bearing wall and comprises a driving part and a limiting column, the limiting column extends in the first direction and is used for being inserted into the matching hole of the adjusting brick, and the driving part is used for driving the limiting column to move in the second direction so that the position of the limiting column in the radial direction of the lower adjusting pipe can be adjusted. According to the adjusting brick position adjusting system, the adjusting bricks can be mounted and dismounted relative to the adjusting holes, the covering area of the adjusting bricks on the adjusting holes is adjusted, the amount of air flowing through the adjusting holes is changed, transverse temperature regulation and control of the coke oven are facilitated, and the manual operation burden of adjusting brick position adjusting operation can be relieved.

The utility model discloses a special-shaped curved-surface refractory brick and a carbonization furnace, and relates to the technical field of preparation of refractory bricks in the carbonization furnace, the special-shaped curved-surface refractory brick comprises a refractory brick body, the refractory brick body is provided with a coke pushing surface for guiding coal to move out of the carbonization furnace, and the coke pushing surface is a partial structure of a brachistost curved surface; the starting point of the coke pushing surface coincides with the highest point of the brachistost curved surface, and the included angle between the tangential direction of the starting point of the coke pushing surface and the highest point of the brachistost curved surface and the horizontal direction is 90 degrees; the end point of the coke pushing surface is positioned above the lowest point of the brachistost descent curved surface, and the included angle between the tangential direction of the end point of the coke pushing surface and the horizontal direction is 20-40 degrees, so that the problem of slow speed reduction of coal at the bottom of the carbonization furnace is solved.

A cleaning method for constructing the drying channel of a coke oven end wall is characterized by the following steps: a) setting up the drying channel mold and making cleaning tools; b) constructing and cleaning the vertical drying channel; c) using the cleaning tools and cleaning the horizontal drying channel. This cleaning method for constructing the drying channel of a coke oven end wall has the advantages of simple cleaning tool structure, convenient manufacturing and use, quick and easy cleaning of the mortar in the channel, thorough cleaning, no blockage in the drying channel, saving construction time, reducing labor intensity, and ensuring the drying channel is clean and unobstructed.

To construct a sound coke oven by using silica bricks which are hardly chipped and have damage resistance.SOLUTION: Provided is a method for sorting silica bricks for constructing a coke oven, the method comprising sorting silica bricks that satisfy all of the following conditions i) to iii): i) a bending strength of 7MPa or more and 15MPa or less, ii) a shape parameter m in a Weibull distribution of the bending strength of 5 or more, and iii) a ratio of a dynamic modulus of elasticity to a square of the bending strength of 80 or more SELECTED DRAWING: None

An oven floor system for tiling an oven floor surface comprises a plurality of tiles each having an underside and a plurality of support elements. Undersides of the tiles each comprise a plurality of recesses for housing support elements. When in use the undersides of the tiles are spaced from the surface by the support elements.

The invention proposes a method of repairing or replacing a roof of a coke oven battery in operation, said coke oven battery comprising a number of parallel coking chambers separated by heating walls and delimited on top by a ceiling, itself covered by a roof, the roof comprising for each coking chamber a first plurality of charging holes or gas transfer holes above said coking chamber, a second plurality of inspection holes above said separating heating walls, one or two base rings connected to one or two gas collecting mains and rail sleepers supporting rails for a coke charging car or charging gas transfer car through an ascension pipe. The invention also proposes a kit of parts with construction modules and the use of such kit of parts in the repairing or replacing of a roof of a coke oven battery in operation and or with at least one oven empty in hot condition.

A method for building a coke own includes steps of building an oven body building three-dimensional control network, and building a coke side or machine side refractory brick receiving platform; based on the three-dimensional control network and the refractory brick receiving platform, marking out a laying position of each layer of refractory bricks layer by layer, arranging the refractory bricks required by laying of each layer by layer, laying the refractory bricks layer by layer according to the marking and the arrangement, jointing the laid refractory bricks layer by layer, cleaning the jointed refractory bricks layer by layer, and checking and accepting the cleaned refractory bricks layer by layer. In this method, quality control is carried out on coke oven body masonry on the whole through six dimensions.

To provide a method for installing precast refractory blocks for coke ovens that can accurately position and install precast refractory blocks lifted by a lifting tool at a predetermined installation position.SOLUTION: A method for installing precast refractory blocks for coke ovens includes: a step of drawing a vertical reference line 7 on the inner side surface 6a-1 of a backstay 6a installed on one side of the coke oven in the oven length direction; a step of applying laser light 8 from the other side of the coke oven in the oven length direction so as to overlap the vertical reference line; a step pf drawing a marking-off line 11 in the oven length direction on the top surface 10A-1 of the first precast refractory block 10A, and drawing a marking-off line 12 in the oven height direction on the other side surface 10A-2 of the first precast refractory block 10A so as to be continuous with the marking-off line 11 in the oven length direction; and a step of installing the first precast refractory block 10A so that the laser light 8 overlaps the marking-off line 11 in the oven length direction and the marking-off line 12 in the oven height direction.SELECTED DRAWING: Figure 5A

A problem to be solved by the present invention is to enable the precast blocks to be easily installed in the coke oven even though the rails present on an upper part of the coke oven. A method of installing precast blocks (PB) in a coke oven (1) provided with rails (R) on an upper part of the coke oven (1) includes: a preparation step of preparing a precast block (PB) such that a joint end face (SE) where a laterally adjacent precast block (PB) is joined is positioned in an under-rail region (BR); a lowering step of suspending and lowering the precast block (PB) from the upper part of the coke oven (1) without interfering with the rails (R); a moving step of moving the precast block (PB) in a longitudinal direction (FD) such that, for each of the precast blocks (PB) partially located in the under-rail region (BR), one of its joint end faces (SE) is located in the under-rail region (BR); and an installation step of installing the precast block (PB) in an intended installation position (SPB).

An object is to provide a carbonization chamber usable period predicting method that can predict the amount of bulging in a carbonization chamber with high accuracy regardless of the amount of bulging and predict a usable period of the carbonization chamber on the basis of the predicted amount of bulging, and to also provide a carbonization chamber repairing method. A method for predicting a usable period of a carbonization chamber having an oven wall constructed by stacking bricks with tongue and groove, includes measuring an oven wall shape of the carbonization chamber with a shape measuring device to identify a bulge bulging inward from an initial position based on hot-state dimensions upon completion of construction of a coke oven; measuring the oven wall shape for the bulge multiple times at different measurement dates and times to determine a first regression equation representing a correspondence between time and the amount of bulging within a range where the amount of bulging is less than or equal to D1 calculated by the following equation (1) and a second regression equation representing a correspondence between time and the amount of bulging within a range where the amount of bulging is greater than or equal to D2 calculated by the following equation (2); and calculating a date and time at which the amount of bulging calculated using the first regression equation or the second regression equation reaches a predetermined threshold to predict a usable period of the carbonization chamber, D1=g−dR1+dL1 and D2=g+dR2+dL2 where, in the equations (1) and (2), g is a distance from a side of the brick with tongue and groove to a tongue and groove, dR1 is a negative manufacturing error value from the side of the brick with tongue and groove to the tongue and groove, dR2 is a positive manufacturing error value from the side of the brick with tongue and groove to the tongue and groove, dL1 is a negative measurement error value of a shape measuring device, and dL2 is a positive measurement error value of the shape measuring device.

To easily install a precast block so as not to be shifted in the direction of an oven battery.SOLUTION: A guide jig according to the present invention includes: two guide plates capable of sandwiching a precast block for a coke oven; and a connecting body that connects the two guide plates facing each other, wherein the two guide plates each have a curved portion whose end portion expands outward.SELECTED DRAWING: Figure 7

The invention relates to the technical field of coking equipment, in particular to an impact-resistant and anti-damage ceramic lining plate structure and a manufacturing process and application thereof, and the impact-resistant and anti-damage ceramic lining plate structure comprises a lining plate body and a plurality of conical ceramic columns embedded in a plurality of positioning holes of the lining plate body; and bonding curing liquid for forming a sealing interface is filled between the conical ceramic column and the positioning hole. According to the lining plate, the multiple conical ceramic columns are embedded in the positioning holes of the lining plate body, when the lining plate is impacted, the conical ceramic columns can disperse impact force to the larger area of the lining plate body, the impact force is prevented from being concentrated in a local area, therefore, local stress is effectively reduced, and the risk that the lining plate is damaged due to stress concentration is reduced; and the aluminum dihydrogen phosphate bonding liquid filled between the conical ceramic columns and the positioning holes can form a sealing interface, so that materials, dust and the like are prevented from entering the positioning holes, and the lining plate structure is prevented from being damaged.

This utility model discloses a low-density, carburizing-resistant clay brick for dry quenching furnaces, belonging to the technical field of clay bricks. It includes a body with several arc-shaped grooves evenly spaced on its lower end surface and several stepped protrusions matching the arc-shaped grooves evenly spaced on its upper end surface. The body has several closed holes inside, and symmetrical grooves for placing Y-shaped anchors are provided on its left and right side walls. The bottom of the vertical part of the Y-shaped anchor is integrally formed with a limiting base. This utility model of a low-density, carburizing-resistant clay brick for dry quenching furnaces makes construction quality more controllable and reliable, ultimately ensuring the long service life of the dry quenching furnace lining.

This invention discloses a robotic system and construction method for hot repair of bottom bricks in the confined space of a coke oven carbonization chamber. The system includes a tracked walking mechanism, a material conveying platform, a base, a robot, a brick replacement mechanism, and an imaging mechanism. The tracked walking mechanism moves along the bottom of the carbonization chamber. The material conveying platform transports bricks to the material collection point. The base provides stable support for the robot. The robot is equipped with a cooling unit to ensure it operates at high temperatures. The brick replacement device includes a T-shaped support, the top of which connects to the end of the robot. A mortar application mechanism is located at the front end, and a cleaning mechanism is located at the rear end. The cleaning mechanism includes a brick milling component, a brick joint milling component, a brick clamping component, and a ash removal component. During repair work, the imaging mechanism performs a detailed scan of the bottom bricks in the coke oven carbonization chamber. The robot moves the brick replacement mechanism to the damaged area, cleans, applies mortar, installs a brick, and completes the repair work. This system can accurately complete the hot repair of the bottom bricks in the carbonization chamber.

The invention discloses a modular efficient and rapid assembly method for oven door bricks of a coke oven. The method comprises the steps that firstly, a brick lining is divided into a plurality of independent modular units according to the size of an inner cavity of a furnace door, and a special modular tooling table and all parts are prefabricated; then, the modular frame is accurately positioned on a tool table, oven door bricks are embedded and corrected till the working face is flush, brick joints are uniform, and then a coke oven oven door brick high-temperature-resistant composite binder is smeared; and then a stainless steel connecting rod is used for conducting transverse and longitudinal penetrating fastening on the brick body, brick joints are filled, a fire-resistant fiber board covers the brick body, and finally the end of the connecting rod is sealed. The assembled modular units are numbered and stored after being subjected to size and sealing detection; during on-site installation, the units are sequentially hoisted to the position of a furnace door through hoisting equipment, and the guide rods are used for assisting in positioning and completing splicing and overall acceptance inspection. According to the method, the furnace door brick lining is transformed from field manual masonry to factory prefabrication and field rapid assembly, and the assembly precision, efficiency and overall reliability are remarkably improved.

The invention relates to the technical field of coke oven regenerative chambers, in particular to a variable-diameter gas pipe brick structure. The brick is built in a main wall of the coke oven regenerative chamber and comprises an upper pipe brick and a lower pipe brick which are built in the height direction; the inner diameter of the upper tubular brick is smaller than that of the lower tubular brick, and a reducing channel in smooth transition is formed at the joint of the inner walls of the upper tubular brick and the lower tubular brick; the transverse brick joints of the upper pipe bricks and the transverse brick joints of the main wall bricks are arranged in a staggered mode, and the transverse brick joints of the lower pipe bricks and the transverse brick joints of the main wall bricks are arranged in a staggered mode. And the gas blowby is fundamentally prevented from the structure. When auxiliary grouting operation is carried out, a grout spraying tool is easier to enter and operate due to the larger pipe diameter, grout can cover the inner wall more evenly, and the grouting operation efficiency and the final plugging effect are greatly improved. Energy is saved, and coking heat consumption of the coke oven is reduced; the service life of the furnace body can be prolonged, and the maintenance and operation cost is reduced.

A method of repairing or replacing a roof of a coke oven battery in operation, said coke oven battery including a number of parallel coking chambers separated by heating walls and delimited on top by a ceiling, itself covered by a roof, the roof having for each coking chamber a number of charging holes or gas transfer holes above the coking chamber, a number of inspection holes above the separating heating walls, one or two base rings connected to one or two gas collecting mains and rail sleepers supporting rails for a coke charging car or charging gas transfer car through an ascension pipe. A kit of parts with construction modules and the use of such kit of parts in the repairing or replacing of a roof of a coke oven battery in operation and or with at least one oven empty in hot condition is also related.