CN113733307B - Novel efficient forming device and method for honeycomb briquette furnace pipe blank - Google Patents
Novel efficient forming device and method for honeycomb briquette furnace pipe blank Download PDFInfo
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- CN113733307B CN113733307B CN202110938994.1A CN202110938994A CN113733307B CN 113733307 B CN113733307 B CN 113733307B CN 202110938994 A CN202110938994 A CN 202110938994A CN 113733307 B CN113733307 B CN 113733307B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/08—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with two or more rams per mould
- B28B3/086—The rams working in different directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/02—Conditioning the material prior to shaping
- B28B17/026—Conditioning ceramic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention provides a novel efficient forming device and method for a honeycomb briquette furnace pipe blank, which comprises an outer die, wherein a guide rail is arranged right above the outer die; the guide rail is provided with a running trolley in a sliding way, and the lower end of the running trolley is provided with a rotary filling component for filling materials; an upper pressure head is arranged at the middle part of the bottom end of the guide rail through an upper pressure head oil cylinder; the core mould is fixedly arranged at the center of the top end of the core mould oil cylinder; a lower pressure head is arranged right below the outer die and supported on the top of a lower pressure head oil cylinder; when in molding, the core mold, the outer mold, the upper pressure head and the lower pressure head are concentrically arranged. The method aims to realize the purposes of quickly and accurately filling the mixed materials into the cavity of the metal mold, obtaining a high-quality honeycomb briquette stove liner blank through bidirectional extrusion, greatly reducing the labor intensity and improving the production efficiency.
Description
Technical Field
The invention relates to a novel efficient forming device and method for a honeycomb briquette stove liner blank, belongs to the technical field of inorganic non-material forming, and is applied to the market of honeycomb briquette stoves.
Background
As a household heating stove and a fire-generating stove, the honeycomb briquette stove has wide civil foundation, and the figure of the honeycomb briquette stove can be seen everywhere in the northern area and the southwest area of China. The refractory furnace (figure I) is used as a replacement core of a honeycomb briquette stove and is embedded into a hearth of the honeycomb briquette stove, so that deformation and cracking of the hearth can be effectively avoided, the thin-wall cylindrical refractory furnace which is formed by taking kaolin ceramic refractory mortar as a raw material is the most common, and the quality of the thin-wall cylindrical refractory furnace directly influences the service life of the honeycomb briquette stove.
Besides the material formula, the main factor influencing the forming quality of the furnace pipe is the blank forming method. At present, two main methods for forming furnace pipe blanks on the market are rotary blank forming method and mould pressing forming method. The basic process of the rotary blank forming method is as follows: firstly preparing kaolin slurry with better fluidity, and then molding by utilizing a gypsum mold in rotary motion and a template cutter in up-and-down motion. The method has the advantages that the production process and equipment are relatively simple, the adaptability is strong, deep products can be spun, and the defects are that the green body has low density and poor uniformity, the green body has long drying time, and the roasting process is easy to generate deformation and cracking; in addition, the manual operation has high labor intensity, low production efficiency and higher requirement on the technical level of operators.
The basic process of the compression molding method is as follows: firstly, filling the granular mixed material into a cavity of a metal mould, then carrying out unidirectional extrusion to compact the material, and then demoulding. The method has the advantages of high blank forming precision, good repeatability, small blank warping deformation, stable performance, convenience for large-scale production and low cost; the disadvantages are that because the fluidity of the mixture is poor, the mixture is difficult to be filled into a deep and narrow die cavity at one time, and the mixture needs to be manually filled for many times and extruded for many times; because the amount of the manual filler is difficult to accurately control every time, the blank forming density has poor stability, the blank strength is difficult to ensure, and the defective rate is high. In addition, due to repeated manual filling and high labor intensity of workers, the safety accident that fingers are crushed easily occurs.
In a word, how to improve the forming efficiency of the existing honeycomb briquette stove liner blank and ensure the forming quality of the stove liner blank, especially ensuring the forming density uniformity and stability of the honeycomb briquette stove liner blank is a key technical problem, and a novel efficient forming device for the honeycomb briquette stove liner is urgently needed to be developed.
Disclosure of Invention
In order to solve the problems of uncontrollable filling amount, unstable forming density and the like in the compression molding process of the honeycomb coal stove liner blank, the invention provides the novel efficient forming device and the method of the honeycomb coal stove liner blank, aiming at realizing the purposes of quickly and accurately filling the mixed material into a metal mold cavity, obtaining the high-quality honeycomb coal stove liner blank through bidirectional extrusion, greatly reducing the labor intensity and improving the production efficiency.
In order to achieve the technical features, the invention is realized as follows: a novel efficient forming device for honeycomb briquette furnace pipe blanks comprises an outer die, wherein a guide rail is arranged right above the outer die; the guide rail is provided with a running trolley in a sliding way, and the lower end of the running trolley is provided with a rotary filling component for filling materials; an upper pressure head is arranged at the middle part of the bottom end of the guide rail through an upper pressure head oil cylinder;
the core mould is fixedly arranged at the center of the top end of the core mould oil cylinder;
a lower pressure head is arranged right below the outer die and supported on the top of a lower pressure head oil cylinder;
when in molding, the core mold, the outer mold, the upper pressure head and the lower pressure head are concentrically arranged.
The rotary filling component comprises a filling oil cylinder fixed at the center of the bottom end of the running trolley, a driving motor is fixedly installed at the tail end of a piston rod of the filling oil cylinder, a main shaft of the driving motor is fixedly connected with the rotating shaft through a coupler, and a propeller blade is fixed at the lower part of the rotating shaft.
The running trolley is square, a plurality of groove wheels are arranged on two sides of the trolley body and are in rolling fit with the guide rail, and a circular positioning groove for mounting the filler oil cylinder is machined in the bottom end of the trolley body.
The guide rail is I-shaped, the upper ends of the left and right beams of the guide rail are provided with running tracks for moving the running trolley, and the lower ends of the left and right beams are provided with circular positioning grooves for fixing the upper pressure head oil cylinder.
The top end of the rotating shaft is provided with a key tooth which is used for being connected with the coupler and transmitting torque; the bottom end is provided with a lower end journal matched with the central positioning hole at the top end of the core mold; and the lower end journal and the central positioning hole form clearance fit.
The upper end of the blade of the propeller blade is an oblique angle, the lower end of the blade is provided with a small disc, the thickness of the blade is reduced along the radial direction, the blade and the shaft body of the rotating shaft are inclined, the blade is bent to have a certain spiral radian, and all edges of the blade are rounded.
The outer mold is a cylindrical cylinder; the core mold is cylindrical, and a circular positioning groove matched with a piston rod of the lower pressure head oil cylinder is processed at the center of the bottom end of the core mold; and a vertical groove structure matched with the inner cavity of the furnace pipe blank to be formed is processed on the outer wall of the core mold.
The upper pressure head is annular, and round positioning grooves for connecting the upper pressure head oil cylinder are uniformly distributed on the left side and the right side of the top end of the upper pressure head;
the lower pressing head is in a circular ring shape, and circular positioning grooves connected with the lower pressing head oil cylinder are uniformly distributed on the left side and the right side of the bottom end of the lower pressing head.
A method for forming a furnace pipe blank by a novel efficient honeycomb briquette furnace pipe blank forming device comprises the following steps:
the method comprises the following steps: preparing raw materials of a furnace pipe blank;
step two: filling the prepared raw materials:
when filling, fixing the guide rail and the outer die and keeping the relative position fixed; starting a core mold oil cylinder, moving the core mold upwards, and controlling the moving distance of the core mold to enable the core mold to penetrate into the outer mold for a section of length;
then starting a lower pressure head oil cylinder, moving the lower pressure head upwards, and ensuring that the top end of the lower pressure head just plugs a bottom annular gap formed by the outer die and the core die;
adding raw materials into a die cavity formed by the outer die and the core die at one time;
starting the rotary filling part, driving the rotating shaft through the driving motor, driving the propeller blades to rotate, quickly and efficiently filling the mixed material into a shallow and narrow mold gap under the action of the propeller blades, controlling the rotating speed of the rotary filling part and the synchronous upward movement speed of the core mold, and ensuring that the material is continuously filled into the mold gap;
step three: pressing the filled raw materials:
during pressing, after the raw materials are filled to a certain height, an upper pressure head oil cylinder and a lower pressure head oil cylinder are started simultaneously, so that the upper pressure head and the lower pressure head are controlled to move towards the middle simultaneously, the compression distance is controlled well, and a furnace pipe blank body with uniform forming density is obtained under the action of bidirectional extrusion force;
step four: and (3) demolding the pressed furnace pipe blank:
when demoulding, the core mould and the rotary filling part move upwards to be flush with the top end of the outer mould, the rotary filling part continues to rise, and the rotary filling part is driven by the running trolley to move to one side of the guide rail;
then the core mold is moved downwards, the upper pressure head and the lower pressure head are synchronously lifted, and the furnace pipe blank positioned between the upper pressure head and the lower pressure head is continuously clamped until the furnace pipe blank is quickly separated from the core mold, so that the structural integrity of the formed part is ensured;
step five: carrying out heat treatment on the furnace pipe blank after demoulding:
and (3) placing the formed furnace pipe in a room temperature drying environment for a period of time, airing, carrying out heat treatment at 700-880 ℃ for 8-10 hours, and then cooling at room temperature.
In the first step, the prepared furnace pipe blank raw material formula is as follows: comprises 70wt% of kaolin, 15wt% of refractory clay, 10wt% of pottery clay and 5wt% of graphite powder;
in the preparation process, the blocky kaolin is crushed and prepared into powder particles, and kaolin particles with large particle size are filtered by a screen; the refractory mortar and the pottery clay are also smashed into powder; graphite powder accounts for 5wt% of the total weight of the furnace container materials; uniformly adding water, fully mixing the mixture with the materials according to a proportion, and placing the mixture in a constant-temperature drying workshop at 25 ℃ for later use.
The invention has the following beneficial effects:
1. the invention firstly provides a novel efficient forming device for a honeycomb coal furnace liner blank, which ensures that mixed materials are quickly and accurately filled into a gap of a mold cavity, and secondly, adopts a bidirectional extrusion forming process to ensure the forming quality, density uniformity and stability of the honeycomb coal furnace liner blank.
2. Compared with the prior art, the invention provides a novel furnace pipe formula which is rigorous and reliable, can ensure that a formed furnace pipe has good plasticity and fire resistance, and simultaneously the graphite powder can effectively increase the lubrication degree of the furnace pipe wall and improve the demoulding efficiency.
3. The guide rail and the outer die of the forming device are fixed, and other parts can be better disassembled and assembled; the propeller blades and the shaft body of the rotating shaft form an included angle of 45 degrees, and the blades are bent to form a certain spiral radian, so that materials can be effectively and uniformly filled into a gap between the core mold and the outer mold; the hydraulic oil cylinder and the hydraulic cylinder support and are connected with the lower pressure head and the core mold, so that the positioning effect is excellent; when the core mold moves vertically upwards by the hydraulic oil cylinder, the rotating shaft operates simultaneously to continuously fill the material into the gap of the mold, the material filling speed is controllable, and the density is uniform.
4. The device has the advantages of simple structure, reasonable design, convenient use, fewer parts and low manufacturing cost. The potential safety hazard of the artificial filler is thoroughly solved, the labor intensity of workers is effectively reduced, and the working efficiency is improved. The density of the furnace pipe is adjustable, the quality is controllable, and the strength is ensured.
5. The device is designed in bulk, is convenient to disassemble and assemble, has low manufacturing cost, simple and easy production method, is suitable for professional and automatic production, can be used for charging materials at one time, is formed by two-way extrusion, has high production rate, low defective rate, low production cost and high production benefit, ensures the quality of the furnace, prolongs the service lives of the furnace and the honeycomb briquette stove, and realizes the technical innovation of energy equipment in the field of civil honeycomb briquette stoves.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic view showing the structure of a conventional refractory furnace for various honeycomb briquet.
Fig. 2 is a schematic three-dimensional structure of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is an exploded view of the present invention.
Fig. 5 is a front view of the rotary shaft and propeller blades of the present invention.
Fig. 6 is a left side view of the rotary shaft and propeller blades of the present invention.
Fig. 7 is a top view of a rotating shaft and propeller blades of the present invention.
Fig. 8 is a three-dimensional view of a rotating shaft and propeller blades of the present invention.
In the figure: the device comprises an upper pressure head 1, a rotating shaft 2, a propeller blade 3, an outer die 4, a lower pressure head 5, a core die 6, a filling oil cylinder 7, an upper pressure head oil cylinder 8, a driving motor 9, a coupler 10, a running trolley 11, a guide rail 12, a core die oil cylinder 13 and a lower pressure head oil cylinder 14.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-8, a novel efficient forming device for a honeycomb briquette furnace pipe blank comprises an outer mold 4, wherein a guide rail 12 is arranged right above the outer mold 4; the guide rail 12 is provided with a running trolley 11 in a sliding manner, and the lower end of the running trolley 11 is provided with a rotary filling component for filling materials; the middle part of the bottom end of the guide rail 12 is provided with an upper pressure head 1 through an upper pressure head oil cylinder 8; the die core is characterized by further comprising a core die 6 matched with the outer die 4, wherein the core die 6 is fixedly arranged at the center of the top end of the core die oil cylinder 13; a lower pressure head 5 is arranged right below the outer die 4, and the lower pressure head 5 is supported on the top of a lower pressure head oil cylinder 14; during molding, the core mold 6, the outer mold 4, the upper pressure head 1 and the lower pressure head 5 are concentrically arranged. The forming device with the structure can be used for forming the furnace pipe blank, the filling density is ensured by rotating the filling part in the forming process, and the furnace pipe blank can be subjected to compression forming by the pressing heads arranged in pairs from top to bottom, so that the forming quality is ensured.
Furthermore, the rotary filling component comprises a filling oil cylinder 7 fixed at the center of the bottom end of the running trolley 11, a driving motor 9 is fixedly installed at the tail end of a piston rod of the filling oil cylinder 7, a main shaft of the driving motor 9 is fixedly connected with the rotating shaft 2 through a coupler 10, and a propeller blade 3 is fixed at the lower part of the rotating shaft 2. The rotary filling component ensures that the raw materials are rotated in the filling process, the whole filling process adopts a one-time filling-continuous rotary filling mode without manual participation, the potential safety hazard of manual filling is thoroughly solved, and the labor intensity of workers is effectively reduced. In the specific working process, the servo motor 9 drives the rotating shaft 2 to rotate at a constant speed through the coupler 10, and the core mold oil cylinder 13 jacks the core mold 6 to move upwards at a constant speed; the two work at the same time, and the material is subjected to horizontal radial centrifugal force because the propeller blades 3 on the rotating shaft 2 rotate continuously; the propeller blades 3 and the shaft body of the rotating shaft 2 form an included angle of 45 degrees, and the blades can apply pressure to the material at an angle of 45 degrees downwards horizontally in the rotating process; and the resultant force direction of the gravity of the materials is downward along the radial direction, so that the materials are uniformly distributed in the seam cavities of the core mold 6 and the outer mold 4, the particle diameters of the materials are close due to constant rotating speed, and the filling density is uniform.
Furthermore, the running trolley 11 is square, a plurality of groove wheels are arranged on two sides of the trolley body, the groove wheels and the guide rail 12 form rolling fit, and a circular positioning groove for mounting the packing oil cylinder 7 is machined in the bottom end of the trolley body. The running trolley 11 is mainly used for driving the whole rotating filling part to slide and make the whole rotating filling part leave the top of the outer die 4.
Furthermore, the guide rail 12 is i-shaped, the upper ends of the left and right beams of the guide rail 12 are provided with running rails for moving the running trolley 11, and the lower ends of the left and right beams are provided with circular positioning grooves for fixing the upper pressure head oil cylinder 8. The structural strength is ensured by the guide rail 12 described above.
Further, the top end of the rotating shaft 2 is provided with a key tooth for connecting with the coupling 10 and transmitting torque; the bottom end is provided with a lower end journal matched with a central positioning hole at the top end of the core mould 6; and the lower end journal and the central positioning hole form clearance fit. Through foretell cooperation mode, guaranteed the support stability of rotation axis 2, guaranteed its pivoted moreover smoothly, prevent that it from taking place to beat, guarantee raw materials filling quality.
Furthermore, the upper end of the blade of the propeller blade 3 is an oblique angle, the lower end of the blade is provided with a small disc, the thickness of the blade is reduced along the radial direction from the thickness, the blade and the shaft body of the rotating shaft 2 are inclined, the blade is bent to form a certain spiral radian, and all edges of the blade are rounded. Through adopting foretell propeller blade 3 can carry out abundant stirring to it at raw materials filling in-process for the material is filled more closely knit.
Further, the outer die 4 is a cylindrical cylinder; the core mould 6 is cylindrical, and a circular positioning groove matched with a piston rod of the lower pressure head oil cylinder 14 is processed at the central part of the bottom end of the core mould 6; and a vertical groove structure matched with the inner cavity of the furnace pipe blank to be formed is processed on the outer wall of the core mold 6. The core mold 6 and the outer mold 4 are matched to form a required furnace pipe blank structure.
Furthermore, the upper pressure head 1 is annular, and round positioning grooves for connecting the upper pressure head oil cylinder 8 are uniformly distributed on the left side and the right side of the top end of the upper pressure head; the lower pressure head 5 is in a circular ring shape, and circular positioning grooves connected with the lower pressure head oil cylinder 14 are uniformly distributed on the left side and the right side of the bottom end of the lower pressure head. The upper pressure head 1 and the lower pressure head 5 are reliably connected through the matching connection mode, and the corresponding pressing action can be driven.
Example 2:
a method for forming a furnace pipe blank by a novel efficient honeycomb briquette furnace pipe blank forming device comprises the following steps:
the method comprises the following steps: preparing raw materials of a furnace pipe blank;
step two: filling the prepared raw materials:
during filling, the guide rail 12 and the outer die 4 are fixed and the relative position is kept fixed; starting a core mould oil cylinder 13, moving the core mould 6 upwards, and controlling the moving distance of the core mould to enable the core mould to penetrate into the outer mould 4 by a certain length;
then starting the lower pressure head oil cylinder 14, moving the lower pressure head 5 upwards, and ensuring that the top end of the lower pressure head 5 just plugs a bottom annular gap formed by the outer die 4 and the core die 6;
raw materials are added into a die cavity formed by the outer die 4 and the core die 6 at one time;
starting the rotary filling component, driving the rotating shaft 2 through the driving motor 9, driving the propeller blade 3 to rotate, quickly and efficiently filling the mixed material into a shallow and narrow mold gap under the action of the propeller blade 3, controlling the rotating speed of the rotary filling component and the synchronous upward movement speed of the core mold 6, and ensuring that the material is continuously filled into the mold gap;
step three: pressing the filled raw materials:
during pressing, after the raw materials are filled to a certain height, the upper pressure head oil cylinder 8 and the lower pressure head oil cylinder 14 are started simultaneously, so that the upper pressure head 1 and the lower pressure head 5 are controlled to move towards the middle simultaneously, the compression distance is controlled well, and a furnace pipe blank body with uniform forming density is obtained under the action of bidirectional extrusion force;
step four: demolding the pressed furnace pipe blank:
during demoulding, the core mould 6 and the rotary filling part move upwards to be flush with the top end of the outer mould 4, the rotary filling part continues to rise, and the rotary filling part is driven by the running trolley 11 to move to one side of the guide rail 12;
then the core mold 6 is moved downwards, the upper pressure head 1 and the lower pressure head 5 are synchronously lifted, and the furnace pipe blank positioned between the upper pressure head and the lower pressure head is continuously clamped until the furnace pipe blank is quickly separated from the core mold 6, so that the structural integrity of the formed part is ensured;
step five: carrying out heat treatment on the furnace pipe blank after demoulding:
and (3) placing the formed furnace pipe in a room temperature drying environment for a period of time, airing, carrying out heat treatment at 700-880 ℃ for 8-10 hours, and then cooling at room temperature.
In the first step, the prepared furnace pipe blank raw material formula is as follows: comprises 70wt% of kaolin, 15wt% of refractory clay, 10wt% of pottery clay and 5wt% of graphite powder;
in the preparation process, the blocky kaolin is crushed and prepared into powder particles, and kaolin particles with large particle size are filtered by a screen; the refractory mortar and the pottery clay are also smashed into powder; graphite powder accounts for 5wt% of the total weight of the furnace container materials; uniformly adding water, fully mixing the mixture with the materials according to a proportion, and placing the mixture in a constant-temperature drying workshop at 25 ℃ for later use.
Example 3:
taking a furnace pipe blank body of 225X 100mmH X D as an example, the forming method comprises the following steps:
1, crushing kaolin, refractory clay and argil into powder; graphite powder accounts for 5wt% of the total weight of the furnace lining material; uniformly adding a proper amount of water, fully mixing the mixture with the materials in proportion, and placing the mixture in a constant-temperature drying workshop at 25 ℃ for later use.
2, adding the standby materials into a mold at one time; the rotating speed of the motor is set to be 100 rad/min; the jacking speed of the hydraulic oil cylinder is set to be 15 mm/s; the servo motor 9 and the hydraulic oil cylinder 7 operate simultaneously, the core mould 6 is moved upwards continuously, the jacking speed of the core mould 6 is controlled, and meanwhile the propeller blades 3 continuously fill materials to the mould seam cavity through rotation; the rotating shaft 2 rotates at a constant speed, the core mold 6 rises at a constant speed, when the materials are filled to a certain height and are demoulded, the rotating filling part rises and is drawn to one side of the guide rail 12 by the running trolley 11, the core mold 6 moves downwards, the upper pressure head 1 retreats, and the lower pressure head 5 continues to rise until the furnace pipe blank is completely ejected out and then taken out.
3, placing the furnace pipe blank in a drying environment at 25 ℃ for 6 hours, airing, and then carrying out heat treatment at 600-780 ℃ for 8-10 hours and cooling at room temperature.
Example 4:
taking a furnace pipe blank of 195X 100mmH X D as an example, the forming method comprises the following steps:
1, crushing kaolin, refractory clay and argil into powder; graphite powder accounts for 5wt% of the total weight of the furnace container materials; uniformly adding a proper amount of water, fully mixing the mixture with the materials in proportion, and placing the mixture in a constant-temperature drying workshop at 25 ℃ for later use.
2, adding the standby materials into a mold at one time; the rotating speed of the motor is set to be 80 rad/min; the speed of the hydraulic oil cylinder is set to be 10 mm/s; the servo motor 9 and the hydraulic oil cylinder 7 operate simultaneously, the core mould 6 is moved upwards continuously, the jacking speed of the core mould 6 is controlled, and meanwhile the propeller blades 3 continuously fill materials to the mould seam cavity through rotation; the rotating shaft 2 rotates at a constant speed, the core mold 6 rises at a constant speed, when the materials are filled to a certain height and are demoulded, the rotating filling part rises and is drawn to one side of the guide rail 12 by the running trolley 11, the core mold 6 moves downwards, the upper pressure head 1 retreats, and the lower pressure head 5 continues to rise until the furnace pipe blank is completely ejected out, and then the workpiece is taken out.
3, placing the furnace pipe blank in a drying environment at 25 ℃ for 6 hours, airing, and then carrying out heat treatment at 600-780 ℃ for 8-10 hours and cooling at room temperature.
Claims (7)
1. A novel efficient forming device for honeycomb briquette furnace pipe blanks is characterized in that: the device comprises an outer die (4), wherein a guide rail (12) is arranged right above the outer die (4); the guide rail (12) is provided with a running trolley (11) in a sliding manner, and the lower end of the running trolley (11) is provided with a rotary filling component for filling materials; an upper pressure head (1) is arranged in the middle of the bottom end of the guide rail (12) through an upper pressure head oil cylinder (8);
the die core (6) is used for being matched with the outer die (4), and the die core (6) is fixedly arranged at the center of the top end of the die core oil cylinder (13);
a lower pressure head (5) is arranged right below the outer die (4), and the lower pressure head (5) is supported on the top of a lower pressure head oil cylinder (14);
when in molding, the core mold (6), the outer mold (4), the upper pressure head (1) and the lower pressure head (5) are concentrically arranged;
the rotary filling component comprises a filling oil cylinder (7) fixed at the center of the bottom end of the operating trolley (11), a driving motor (9) is fixedly installed at the tail end of a piston rod of the filling oil cylinder (7), a main shaft of the driving motor (9) is fixedly connected with the rotating shaft (2) through a shaft coupling (10), and a propeller blade (3) is fixed at the lower part of the rotating shaft (2).
2. The novel efficient forming device for the honeycomb briquette furnace pipe blank body as claimed in claim 1, is characterized in that: the operation trolley (11) is square, a plurality of groove wheels are arranged on two sides of the trolley body and are in rolling fit with the guide rail (12), and a circular positioning groove for mounting the filler oil cylinder (7) is machined in the bottom end of the trolley body.
3. The novel efficient forming device for the honeycomb briquette furnace pipe blank body as claimed in claim 1, which is characterized in that: the guide rail (12) is I-shaped, the upper ends of the left and right beams of the guide rail (12) are provided with running rails for moving the running trolley (11), and the lower ends of the left and right beams are provided with circular positioning grooves for fixing the upper pressure head oil cylinder (8).
4. The novel efficient forming device for the honeycomb briquette furnace pipe blank body as claimed in claim 1, is characterized in that: the top end of the rotating shaft (2) is provided with a key tooth which is used for being connected with the coupling (10) and transmitting torque; the bottom end is provided with a lower end journal which is used for matching with a central positioning hole at the top end of the core mould (6); and the lower end journal and the central positioning hole form clearance fit.
5. The novel efficient forming device for the honeycomb briquette furnace pipe blank body as claimed in claim 1, is characterized in that: the upper end of the paddle of the propeller blade (3) is an oblique angle, the lower end of the paddle is provided with a small disc, the thickness of the paddle is reduced along the radial direction, the paddle and the shaft body of the rotating shaft (2) are inclined, the paddle is bent to have a certain spiral radian, and all edges of the paddle are rounded.
6. The novel efficient forming device for the honeycomb briquette furnace pipe blank body as claimed in claim 1, is characterized in that: the outer mold (4) is a cylindrical cylinder; the core mold (6) is cylindrical, and a circular positioning groove matched with a piston rod of the lower pressure head oil cylinder (14) is processed at the center of the bottom end of the core mold (6); and a vertical groove structure matched with the inner cavity of the furnace pipe blank to be formed is processed on the outer wall of the core mold (6).
7. The novel efficient forming device for the honeycomb briquette furnace pipe blank body as claimed in claim 1, which is characterized in that: the upper pressure head (1) is annular, and round positioning grooves for connecting the upper pressure head oil cylinder (8) are uniformly distributed on the left side and the right side of the top end of the upper pressure head;
the lower pressing head (5) is in a circular ring shape, and circular positioning grooves connected with the lower pressing head oil cylinder (14) are uniformly distributed on the left side and the right side of the bottom end of the lower pressing head.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210939576.9A CN115366229A (en) | 2021-08-16 | 2021-08-16 | Method for forming furnace lining blank by adopting novel efficient honeycomb briquette furnace lining blank forming device |
| CN202110938994.1A CN113733307B (en) | 2021-08-16 | 2021-08-16 | Novel efficient forming device and method for honeycomb briquette furnace pipe blank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110938994.1A CN113733307B (en) | 2021-08-16 | 2021-08-16 | Novel efficient forming device and method for honeycomb briquette furnace pipe blank |
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| CN202210939576.9A Division CN115366229A (en) | 2021-08-16 | 2021-08-16 | Method for forming furnace lining blank by adopting novel efficient honeycomb briquette furnace lining blank forming device |
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| CN113733307A CN113733307A (en) | 2021-12-03 |
| CN113733307B true CN113733307B (en) | 2022-09-02 |
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| CN202110938994.1A Active CN113733307B (en) | 2021-08-16 | 2021-08-16 | Novel efficient forming device and method for honeycomb briquette furnace pipe blank |
| CN202210939576.9A Pending CN115366229A (en) | 2021-08-16 | 2021-08-16 | Method for forming furnace lining blank by adopting novel efficient honeycomb briquette furnace lining blank forming device |
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| AT410295B (en) * | 1998-03-20 | 2003-03-25 | Schluesselbauer Johann | Method for casting concrete bowl-shaped bodies for shaft base |
| CN101059020B (en) * | 2007-04-30 | 2010-08-18 | 李艺明 | Wall heat insulation building blocks and production method thereof |
| CN108501184B (en) * | 2018-05-28 | 2024-01-23 | 洛阳震动机械有限公司 | Carbon crucible vibration forming machine |
| US10780498B2 (en) * | 2018-08-22 | 2020-09-22 | General Electric Company | Porous tools and methods of making the same |
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