76results about "Coke oven brickwork" patented technology

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.

A corbel for a coke oven includes a gun block portion having a vertical through hole disposed therein, the gun block portion having at least one generally vertical through hole communicating with the vertical through hole. The gun block portion may be integral with a base. The gun block portion also includes a generally vertical rectangular channel having an opening at a first end of the gun block portion and an opening at a first side of the gun block portion.

The utility model provides a brick positioning and supporting device of a coke oven furnace end masonry robot, which belongs to the technical field of coke oven construction engineering and comprises a stand column, a linear sliding table and a limiting mechanism. The linear sliding table is installed on the stand column, one end of the limiting mechanism is connected with the linear sliding table, and the linear sliding table can drive the limiting mechanism to move in the direction of the stand column. And the limiting mechanism is used for limiting the position of the furnace end masonry. The furnace end brickwork is limited and supported by the limiting mechanism through the lifting of the linear sliding table, so that the requirements of different wall widths can be met. By means of the design, the integrity of masonry is guaranteed, and bricks on the two sides are prevented from moving due to extrusion force in the masonry process.

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 utility model discloses a connecting structure for coke oven door lining brick fixing bolts, which comprises two fixing base plates, the number of the fixing base plates is two, the fixing base plates are respectively and horizontally arranged on two sides along the longitudinal direction, and the fixing base plates on the two sides are respectively provided with a plurality of vertically arranged anchor bolts I in a combined manner through connecting and positioning components. The device has the beneficial effects that the coaxiality of the thread bushing and the matching hole can be ensured, so that the accurate coaxiality of the screw rod part I at the top of the anchor bolt I is ensured after the screw rod part I is coaxially matched with the thread bushing, and the condition that the anchor bolt I is not vertical to the top surface of the fixed base plate is avoided; the perpendicularity of the first anchoring bolt and the fixing base plate is guaranteed, it is guaranteed that the first anchoring bolt can be accurately limited and compared with the hole position of the furnace door frame, and therefore it is guaranteed that the furnace door lining brick can be smoothly and stably fixed to the furnace door frame in the mode that the first anchoring bolt is additionally provided with a locking nut.

The invention discloses an aluminum silicate fiber reinforced coke oven regenerative chamber sealing wall, which belongs to the technical field of coke oven bodies, and specifically comprises the following steps: building magnesium-aluminum high-strength heat-insulating bricks in a staggered joint manner as an inner layer, reserving expansion joints, sequentially paving an aluminum silicate fiber blanket on an outer layer, mounting and fixing an asbestos-free calcium silicate plate, and painting a heat-insulating coating to form a coating, finally, a steel wire mesh is laid and fixed, and the coke oven regenerative chamber sealing wall is obtained. According to the invention, the aluminum silicate fiber blanket is enhanced, and the magnesium-aluminum high-strength heat-insulating brick and the heat-insulating coating are prepared, so that the heat-insulating property, the sealing property and the thermal expansion property of the sealing wall of the regenerative chamber of the coke oven are further optimized.

To provide a judging method by which the time for reloading furnace bottom bricks in a carbonization chamber can properly be found out in relation to the actually occurring pushing clogging.SOLUTION: The determination method includes a push-out step, a detection step, an accumulation step, a cleaning step, a measurement step, a determination step, an identification step, a collation step, and a determination step (steps #5 to #45). In the final determination step (step #45), when a specific portion is present in the displacement of the furnace bottom of the carbonizing chamber in which the push-clogging has occurred, and the position x1 at which the maximum displacement of the specific portion appears overlaps the position x2 at which the second peak appears in the immediately preceding pushing force waveform, it is determined that the time to restack the bricks on the furnace bottom in the carbonizing chamber has arrived.SELECTED DRAWING: Figure 5

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 method for replacing a carbon bottom brick in an unmanned coke oven carbonization chamber, and relates to the technical field of coke oven maintenance, and the method comprises the following steps: setting a carbonization chamber adjacent to a maintenance carbonization chamber as a buffer furnace, and controlling the temperature in the buffer furnace to be in a first temperature interval; after the temperature in the buffer furnace is kept in the first temperature interval for a first preset time, arranging a machine side heat preservation layer on a machine side furnace wall of the maintenance carbonization chamber, and arranging a machine side heat preservation door at a machine side furnace door opening; by using the length-adjustable carbon bottom brick replacing device, under the condition that an operator does not enter a maintenance carbonization chamber, old carbon bottom bricks can be disassembled, and new carbon bottom bricks can be laid, so that the operator can be effectively prevented from being hurt by high temperature in the carbonization chamber; personnel use the carbon bottom brick replacing device outside the maintenance carbonization chamber for operation without being influenced by high temperature, so that the operation efficiency is high, the operation time can be effectively shortened, and the furnace door is prevented from being opened for a long time to influence the quality of a furnace wall.

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.

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.

The invention discloses a coke oven riser base mounting structure, and relates to the technical field of riser auxiliary structures. Comprising a first connecting base installed on the furnace top, a base connecting cylinder connected with the upper end of the first connecting base, and a second connecting base used for connecting the base connecting cylinder and the ascending pipe. Through the modular design of the first connecting base, the base connecting cylinder and the second connecting base, the whole structure is divided into several independent parts, rapid preliminary positioning is achieved through cooperation of the clamping blocks and the clamping notches, then fastening is conducted through the bolts, installation is greatly facilitated, and the practicability is high. A multi-sealing system composed of the upper sealing gasket, the lower sealing gasket, the clamping notch sealing ring, the stable sealing plate of the clamping mechanism and the second sealing gasket at the annular sealing plate is constructed, when a certain part is damaged by high-temperature gas in the coke oven, only the part needs to be replaced, the maintenance time is shortened, and the equipment operation rate is improved.

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.

The utility model discloses a device for cleaning sundries in a flame path, which comprises a rotating rod and a holding rod, the rotating rod is rotatably mounted in the holding rod, a first nut is mounted at the bottom of the holding rod, and the rotating rod is in threaded connection with the first nut. Through the cooperative arrangement of the rotating rod and the holding rod, the first telescopic rod and the second telescopic rod which are symmetrical can be driven to form a rhombic telescopic frame, and the rhombic telescopic frame is matched with the first nut and the second nut to stretch out and draw back, so that bricks can be conveniently clamped, bricks can be timely cleaned when falling into a combustion chamber, the maintenance time is shortened, and the labor amount of operators is reduced; through the cooperative arrangement of the first nut and the second nut, after a brick is clamped, the rotating rod is limited through the different thread screwing directions of the first nut and the second nut, and therefore an operator can clamp out the brick without controlling the rotating rod all the time; according to the brick clamping device, the brick clamping effect is improved through the first telescopic rod and the second telescopic rod which are symmetrically arranged, and the clamped bricks are not prone to falling off through the large clamping area of the two clamping blocks on each side.

To provide a brick prefabricated block arrangement structure and an arrangement method capable of suppressing an increase in pressure loss of a flowing gas without obstructing a gas flow from a slit at an upper end of a lower block to a slit at a lower end of an upper block when brick prefabricated blocks in which a plurality of checker bricks are stacked are vertically stacked in a heat storage chamber.SOLUTION: A brick prefabricated block arrangement structure is an arrangement structure in which brick prefabricated blocks 2, each formed by stacking a plurality of checker bricks 1, are arranged in a coke oven, and the brick prefabricated blocks 2 are arranged in two or more stages in a vertical direction, and a plurality of spacers 7 are arranged between an upper surface 21 of a lower brick prefabricated block 25 disposed below and a lower surface 22 of another brick prefabricated block 26 disposed above the brick prefabricated block 2.SELECTED DRAWING: Figure 1

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 utility model provides a coke oven branch flue structure which comprises a branch flue communicated with a coke oven and provided with a high-temperature cavity, a side wall heat insulation layer is laid on the side wall of the branch flue, and a top heat insulation layer is laid on the top of the branch flue so as to reduce heat transfer of the branch flue from inside to outside. The coke oven branch flue has the beneficial effects that the temperature of the working environment around the coke oven branch flue can be improved, the potential safety hazard of operation is reduced, the working efficiency is further improved, the construction operation is simple, and the working environment around the coke oven branch flue can be improved by adopting low construction cost.

The invention discloses a coke oven furnace end masonry positioning device and method with a joint cleaning function, and the device comprises a bottom structure fixing clamp (1) which comprises a supporting plate (4), a supporting seat (5), a length adjusting mechanism (6), a lifting system (2) which is arranged on the bottom structure fixing clamp (1), a fixing and correcting mechanism (9), a brick layer graduated scale (12) and a first standard section lifting rod (13), the elevation control mechanism (11) is arranged on the first standard section lifting rod (13), and the top structure fixing and ash collecting device (3) comprises a connecting part (17) connected with the elevation control mechanism (11) and an intelligent identification ash collecting mechanism (23). According to the device disclosed by the invention, the intelligent identification ash collecting mechanism (23) is controlled to rotate, roll and position, so that the accurate control on the whole process position space of the furnace end masonry, the intelligent identification of the mortar and the cleaning and recovery of the mortar in the whole furnace end masonry process are realized.

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.

The utility model relates to a novel height-adjustable vault mold for building a gasifier, and belongs to the technical field of coal chemical equipment. The vault mold comprises a hemispherical steel mold body, a plurality of supporting legs are assembled on the bottom face of the steel mold body and evenly distributed in the circumferential direction of the bottom face of the mold body, each supporting leg is composed of two pipe bodies which are connected in a sleeved mode, and a telescopic positioning mechanism is arranged between the two pipe bodies. And connecting mechanisms assembled with the bottom surface of the steel mold are arranged at the top ends of the supporting legs. According to the vault mold for building the gasification furnace, the supporting legs capable of being telescopically positioned are arranged, the height of the steel mold is adjusted through the supporting legs, and application is more flexible and 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 invention relates to a coke oven regenerative chamber area maintenance method which comprises the following steps: S1, dismounting sealing walls on the top surface and the side wall surface of a regenerative chamber, and replacing checker bricks in the regenerative chamber; s2, after the sealing wall is dismantled and the checker bricks are replaced, grate bricks in the heat storage chamber are replaced, and the hole diameter of the grate bricks is enlarged by 5-10 mm; s3, after the step S2 is completed, accumulated materials in the small flue are cleaned; s4, cracks of the single wall and the main wall of the regenerative chamber are sealed; s5, filling checker bricks in the regenerative chamber, and building a sealing wall of the regenerative chamber; s6, a top sealing wall of the regenerative chamber is dismantled and rebuilt, and accumulated materials in the chute are cleaned; and S7, heat preservation treatment is conducted on the outer surfaces of sealing walls of the top face and the side wall faces of the regenerative chamber. The invention has the beneficial effects of solving the heating condition of the vertical flue at the oven head of the coke oven, improving the circulation of gas and air at the regenerative chamber and increasing the temperature of the vertical flue at the oven head by more than 50 DEG C, so that the coke oven runs efficiently, the service life of the coke oven is prolonged, and the coke oven is energy-saving and environment-friendly.

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.