CN114750443A - Production method and production equipment of double-density rock wool board - Google Patents
Production method and production equipment of double-density rock wool board Download PDFInfo
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- CN114750443A CN114750443A CN202210318485.3A CN202210318485A CN114750443A CN 114750443 A CN114750443 A CN 114750443A CN 202210318485 A CN202210318485 A CN 202210318485A CN 114750443 A CN114750443 A CN 114750443A
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- 239000011490 mineral wool Substances 0.000 title claims abstract description 117
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims description 51
- 238000001125 extrusion Methods 0.000 claims description 46
- 229920000742 Cotton Polymers 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 abstract description 27
- 150000001875 compounds Chemical class 0.000 abstract description 11
- 239000000835 fiber Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/32—Discharging presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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Abstract
The invention discloses a production method of a double-density rock wool board, which is characterized in that a rock wool felt is divided into a first layer and a second layer along the thickness direction, the first layer and the second layer synchronously move along the same direction, the first layer is compressed along the thickness direction in the moving process, the density of the first layer is increased, a high-density rock wool felt layer is formed, and the high-density rock wool felt layer and the second layer are overlapped together and are simultaneously compressed and then combined together, so that the double-density rock wool board is formed. The application also discloses a production equipment for producing above-mentioned dual density rock wool board. Utilize this application, can make two rock wool layers that density is different with same rock wool felt to compound two rock wool layers into dual density rock wool board, make this dual density rock wool board can reduce its weight under the condition that keeps its intensity.
Description
Technical Field
The invention belongs to rock wool board production equipment, and particularly relates to production equipment for a double-density rock wool board.
Background
The rock wool board belongs to a fireproof energy-saving heat-insulating material, can be used for manufacturing heat-insulating boards, fireproof boards and the like, and is widely applied to industries such as building materials, metallurgy, petroleum, chemical engineering and the like. The production process of the existing rock wool board comprises the following steps: the raw materials are smelted and blown into rock wool fibers by a smelting furnace, the rock wool fibers are laid into uniform rock wool felts by a pendulum bob, then the rock wool felts are distributed and pressed to a certain thickness by a pleating and pressurizing device, and the rock wool felts are sent into a curing furnace to be dried and made into the plate. Wherein the pleating and pressing process determines the strength and performance of the rock wool board.
In the prior art, each kind of rock wool board generally only sets up a density, if the intensity of the rock wool board of setting for thickness will improve, just need increase the density of rock wool board, this not only brings the rise of rock wool board weight and cost, still can lead to the coefficient of heat conductivity of rock wool board to rise, and thermal insulation performance descends.
However, with the continuous improvement of the market on the product requirements, the rock wool board with single density cannot meet the market requirements, products with high strength and low weight become needed, particularly, the rock wool board is used for building exterior wall heat preservation or other fields, the surface of the rock wool board needs higher strength, but the low weight of the rock wool board still needs to be kept under the heat preservation effect, better balance is adopted between the strength and the weight, and at least one surface of the rock wool board needs higher strength while the density of the rock wool board is slightly improved.
Disclosure of Invention
In order to solve the problems, the application firstly provides a production method of the double-density rock wool board, which divides a rock wool felt into a first layer and a second layer along the thickness direction, enables the first layer and the second layer to synchronously move along the same direction, compresses the first layer along the thickness direction in the moving process, increases the density of the first layer to form a high-density rock wool felt layer, and combines the high-density rock wool felt layer and the second layer together after being compressed to form the double-density rock wool board.
According to the production method, the rock wool felt is firstly divided into two layers, the first layer is compressed to form the high-density surface felt layer, the high-density surface felt layer and the second layer are simultaneously compressed and then are compounded together, and the density of the first layer is increased after the first layer is compressed in advance. When curing is carried out, it is sufficient to carry out the curing according to the prior art. Because the adhesive is already applied to the rock wool layer in the preparation process, when the high-density surface felt layer and the second split layer are compounded, the high-density surface felt layer and the second split layer can be bonded together by using the adhesive carried by the rock wool layer without applying the adhesive.
This dual density rock wool board includes the high density layer that is formed by the high density face felt layer and the low density layer that is formed by the second layering in, and wherein high density layer has higher intensity and planarization as the loading end, and the low density layer is used for as the heat preservation, not only can guarantee the low weight of rock wool board from this, can also guarantee its intensity.
Utilize the dual density rock wool board that this application produced, when overall density is the same, the tensile strength of the dual density rock wool board that this application produced is more than 1.3 times of the tensile strength of current rock wool board, and wherein the tensile strength on high density layer is more than 2.4 times of the tensile strength of current rock wool board. Owing to utilize this application, under the same circumstances of rock wool weight, the tensile strength of the dual density rock wool board of preparing will be greater than current conventional rock wool board, consequently under the same circumstances of bulk strength, selects the dual density rock wool board that this application was prepared to replace current conventional rock wool board, can realize reducing the target of rock wool board weight.
Further, be convenient for the removal of first layering and second layering to and the compression of first layering, the width of this rock wool felt extends along the horizontal direction, and the thickness of rock wool felt extends along vertical direction, and the rock wool felt is divided into first layering and second layering along upper and lower direction, and wherein first layering is located the top of second layering.
Further, in order to make the dual density rock wool board have three-dimensional structure to effectively improve the bulk strength of product, this rock wool felt is at first through pleating processing before being cut apart. The folds formed in the rock wool felt can fold the fibers of the rock wool felt along the thickness direction of the rock wool felt to form a three-dimensional structure, and the three-dimensional structure can be continuously maintained in the dual-density rock wool board.
Secondly, the application also discloses production equipment of the double-density rock wool board, which is used for producing the double-density rock wool board in any technical scheme, and the production equipment comprises a dividing machine, a layering pressurizing machine and a fixed pressurizing machine which are sequentially arranged along the first axial direction, wherein the layering pressurizing machine comprises a rack, and an upper conveying part, a lower conveying part and an extrusion part which are arranged on the rack, wherein the extrusion part is positioned above the upper conveying part, and the lower conveying part is positioned below the upper conveying part; the first axis extends in a horizontal direction;
a cotton layer channel is formed between the upper conveying part and the lower conveying part, a feeding port is arranged at one end of the cotton layer channel facing the cutting machine, and a discharging port is arranged at one end of the cotton layer channel facing the fixed pressurizing machine;
the fixed pressing machine comprises a supporting part and a composite part which are arranged along the vertical direction, wherein the composite part is positioned above the supporting part;
the dividing machine can divide the rock wool felt into a first layer and a second layer along the vertical direction, wherein the first layer is positioned above the second layer, the first layer can move towards the fixed pressurizing machine along the upper conveying part, and the second layer can move towards the fixed pressurizing machine along the lower conveying part through the feeding port; the first layer is compressed by the extrusion part when moving along the upper conveying part, so that the density of the first layer is increased and the first layer is formed into a high-density cotton felt layer; the high-density cotton felt layer and the second sub-layer are compressed on a fixed pressing machine and then combined together to form the double-density rock wool board. Preferably, the lower surface of the discharge hole and the upper surface of the support part are located on the same plane, so that the second layer can be smoothly moved onto the support part. Specifically, the cutting machine is a horizontal band saw.
In this production equipment, the separate machine has been set up, layering press and fixed press, wherein the separate machine is used for cutting apart the rock wool felt, the layering press is used for pressurizeing first layering, in order to increase density, and form into high density cotton felt layer, fixed press is used for pressurizeing second layering and high density cotton felt layer and compound, in order to form the dual density rock wool board, and make the dual density rock wool board reach and set for thickness, this dual density rock wool board can become the product after curing through the curing oven solidification again. The division of rock wool board, layering pressurization and compound are once only accomplished to cut apart, layering pressurization and the complex of cut apart machine, layering pressurization and the fixed pressurization machine continuous operation in this production equipment, form dual density rock wool board, including the high density layer that forms by high density surface felt layer and the low density layer that forms by the second layering in this dual density rock wool board, high density layer wherein is as the loading end, has higher intensity and planarization, and the low density layer is used for being as the heat preservation, not only can guarantee the low weight of rock wool board from this, can also guarantee its intensity.
Specifically, the upper conveying part includes at least one upper conveying roller group, each of which includes at least two upper conveying rollers arranged at intervals in the first axial direction, and when the upper conveying part includes at least two upper conveying roller groups, the at least two upper conveying roller groups are arranged in sequence in the first axial direction;
the extrusion part comprises at least one extrusion roller group, each extrusion roller group comprises at least two extrusion rollers, the at least two extrusion rollers are arranged at intervals along the first axial direction, and when the extrusion part comprises at least two extrusion roller groups, the at least two extrusion roller groups are sequentially arranged along the first axial direction;
at least one upper conveying roller group is vertically opposite to one extrusion roller group, and a first extrusion channel is formed between the upper conveying roller group and the extrusion roller group which are vertically opposite;
the lower conveying part comprises at least one lower conveying roller group, each lower conveying roller group comprises at least two lower conveying rollers, the at least two lower conveying rollers are arranged at intervals along a first axial direction, and when the lower conveying part comprises the at least two lower conveying roller groups, the at least two lower conveying roller groups are sequentially arranged along the first axial direction;
the supporting part comprises at least one supporting roller group, each supporting roller group comprises at least two supporting rollers, the at least two supporting rollers are arranged at intervals along the first axial direction, and when the supporting part comprises at least two supporting roller groups, the at least two supporting roller groups are sequentially arranged along the first axial direction; preferably, the tops of all the support rollers are located at the same horizontal plane;
the composite portion comprises at least one composite roller set, each composite roller set comprises at least two composite rollers, the at least two composite rollers are arranged at intervals along a first axial direction, and when the composite portion comprises the at least one composite roller set, the at least two composite roller sets are sequentially arranged along the first axial direction; preferably, the bottoms of all the composite rolls are located at the same horizontal plane;
at least one supporting roller set is vertically opposite to one composite roller set, and a second extrusion channel is formed between the vertically opposite supporting roller set and the composite roller set;
the upper conveying roller, the lower conveying roller, the squeeze roller, the supporting roller and the composite roller are all rotatably arranged on the frame and all extend along the direction of a second axis, and the second axis extends along the horizontal direction and is perpendicular to the direction of the first axis;
the frame is also provided with a first motor and a second motor, the first motor is used for driving the upper conveying roller and the lower conveying roller to rotate, and the second motor is used for driving the supporting roller to rotate.
This design can make the upper conveying portion drive first layering, lower conveying portion drive the second layering and remove towards fixed presser direction smoothly, and only when relying on the thrust of rock wool felt before the cut-apart machine to remove, easily produce and pile up, cause the cotton felt inhomogeneous. The second layering and the high-density cotton felt layer are conveyed by the supporting part, so that the production stacking phenomenon can be avoided.
In order to further improve the uniformity of the extrusion of the first layer and the uniformity of the extrusion of the second layer and the high-density batt layer, at least one of the upper conveyor roller sets further comprises a first conveyor belt encircling at least two of the upper conveyor rollers of the upper conveyor roller set;
at least one of the sets of press rolls further comprises a second conveyor belt encircling at least two of the press rolls in the set of press rolls;
at least one lower conveying roller group further comprises a third conveying belt which is arranged around at least two lower conveying rollers in the lower conveying roller group;
at least one of the support roller sets further comprises a fourth conveyor belt encircling at least two support rollers in the support roller set,
at least one of the composite roll sets further includes a fifth conveyor belt encircling at least two of the composite rolls in the composite roll set.
Further, a first lifting device and a second lifting device are installed on the machine frame, the extrusion part is installed on the first lifting device, and the composite part is installed on the second lifting device; the first lifting device is used for moving the extrusion part along the vertical direction so as to adjust the distance between the extrusion part and the upper conveying part; the second lifting device is used for moving the composite part along the vertical direction so as to adjust the distance between the support part and the composite part;
and a third motor for driving the extrusion roller to rotate is installed on the first lifting device, and a fourth motor for driving the composite roller to rotate in an extrusion manner is installed on the second lifting device.
Utilize first elevating gear, can adjust the height of first extrusion passageway smoothly to form the high density cotton felt layer of different density, perhaps according to the first layering of different thickness, carry out corresponding adjustment, in order to guarantee to form the high density cotton felt layer that the density is the same. Utilize second elevating gear, can adjust the height of second extrusion passageway smoothly to in the formation dual density rock wool board of different density, perhaps according to the second layering and the high density cotton felt layer of different thickness, carry out corresponding adjustment, in order to guarantee to form the dual density rock wool board that density is the same. The third motor can rotate the squeeze roll, so that the first layering moves towards the direction of the fixed pressurizing machine, and smooth squeezing of the first layering is guaranteed. The fourth motor can drive the composite roller to rotate, so that the second layering and the high-density cotton felt layer move smoothly towards the direction far away from the layering pressurizing machine, and smooth extrusion of the second layering and the high-density cotton felt layer is guaranteed.
Further, in order to ensure that the first layering and the second layering can smoothly move along the upper conveying part and the lower conveying part respectively, a flow guide part is arranged between the feeding port and the dividing machine, and the flow guide part is in a wedge shape with the small end facing the dividing machine; in the horizontal direction, the small end of the flow guide piece is aligned to the horizontal section of the saw blade of the horizontal band saw, so that the first layering and the second layering can move along the upper conveying part and the lower conveying part respectively. Utilize the water conservancy diversion spare, can separate the first layering that dissects smoothly and the cotton felt of second layering, the follow-up processing of being convenient for.
Further, for making dual density rock wool board have three-dimensional structure to effectively improve the bulk strength of product, install a pleating machine in the one side that the cut-apart machine deviates from the layering loading machine, this pleating machine is used for carrying out pleating to the rock wool felt before the cutting and handles. The folds formed in the rock wool felt can fold the fibers of the rock wool felt along the thickness direction of the rock wool felt to form a three-dimensional structure, and the three-dimensional structure can be continuously maintained in the dual-density rock wool board.
Drawings
Fig. 1 is a schematic structural diagram of production equipment of the dual-density rock wool board.
Fig. 2 is a view from a-a in fig. 1.
Fig. 3 is a view in the direction B-B in fig. 1.
Fig. 4 is a schematic view of the dual density rock wool panel production equipment in operation.
Detailed Description
Referring to fig. 1 to 4, in the drawings, an extending direction of a first axis X is a first axis direction, an extending direction of a second axis Y is a second axis direction, and the first axis X and the second axis Y extend in a horizontal direction and are perpendicular to each other.
The production equipment comprises a pleating machine 100, a dividing machine 10, a layering and pressurizing machine 2 and a fixed pressurizing machine 4 which are arranged in sequence along a first axial direction, wherein the dividing machine 10 and the fixed pressurizing machine 4 are positioned at two opposite sides of the layering and pressurizing machine 2, and the pleating machine 100 is positioned at one side of the dividing machine, which is far away from the layering and pressurizing machine 2. The pleating machine 100 is used to pleat the rock wool felt 80 prior to cutting. In this example, the pleating machine 100 was a model DZJ1200 pleating machine manufactured by Nanjing glass fiber research design institute, Inc.
The layering press comprises a frame 60, and an upper conveying part 21, a lower conveying part 22 and a squeezing part 23 which are arranged on the frame 60, wherein the squeezing part 23 is positioned above the upper conveying part 21, and the lower conveying part 22 is positioned below the upper conveying part 21. In this embodiment, the cutting machine 10 is a horizontal band saw, specifically a high-speed horizontal flat-cut band saw of HDJ1200 manufactured by Nanjing glass fiber research design institute Co.
A cotton layer channel 25 is formed between the upper conveying part 21 and the lower conveying part 22, a feeding opening 26 is arranged at one end of the cotton layer channel 25 facing the dividing machine 10, and a discharging opening 27 is arranged at one end of the cotton layer channel 25 facing the fixed pressing machine 2.
In the present embodiment, the upper conveying portion 21 includes three upper conveying roller sets 211 sequentially arranged in the first axial direction, and each upper conveying roller set 211 includes three upper conveying rollers 212 arranged at intervals in the first axial direction. It is to be understood that in another embodiment, the first conveyor belt 213 may also be looped around three upper conveyor rollers 212. It is to be understood that each upper feed roller set 211 may include only two upper feed rollers when the first conveyor belt is looped around the upper feed rollers.
The pressing section 23 includes a pressing roller group 231, and the pressing roller group 231 includes three pressing rollers 232 arranged at intervals in the first axial direction. It will be appreciated that in another embodiment, the second conveyor belt 233 may also be looped around three squeeze rollers 232. It will be appreciated that the set of squeeze rollers 231 may comprise only two squeeze rollers when wrapping the second conveyor belt around the squeeze rollers 232.
The lower conveying portion 22 includes up to three lower conveying roller groups 221 arranged in sequence in the first axial direction, and each lower conveying roller group 221 includes three lower conveying rollers 222 arranged at intervals in the first axial direction. It is to be understood that, in another embodiment, the third conveyor belt 223 may also be looped around the three lower conveyor rollers 222. It is to be understood that each lower transport roller set 221 may include only two lower transport rollers when the third transport belt is looped on the lower transport rollers 222.
The three upper feed roller groups 211 are arranged in the first axial direction in an upwardly projecting arch shape, and the three lower feed roller groups 221 are arranged in the first axial direction in a downwardly projecting arch shape, so that the cotton layer passage 25 formed between the upper feed portion 21 and the lower feed portion 22 has a large space to utilize smooth movement of the second stratification 82 described below.
Of the three upper conveying roller groups 211, the upper conveying roller group 211 positioned in the middle vertically opposes the pressing roller group 231 and forms the first pressing passage 28.
The fixed press 4 includes a support portion 41 and a compound portion 42 provided in the up-down direction, wherein the compound portion 42 is located above the support portion 41.
In this embodiment, the supporting portion 42 includes a supporting roller group 421, and the supporting roller group 421 includes five supporting rollers 422 arranged at intervals along the first axial direction. It will be appreciated that in another embodiment, the fourth conveyor belt 423 may also be looped around five support rollers 422. It is understood that the set of support rollers 421 may comprise only two support rollers when the fourth conveyor belt is looped over the support rollers 422.
The compound section 41 comprises a compound roller set 411, the compound roller set 411 comprising three compound rollers 412 arranged at intervals in the first axial direction. It will be appreciated that in another embodiment, fifth conveyor belt 413 may also be looped around three composite rollers. It will be appreciated that the composite roll set 411 may comprise only two composite rolls when the fifth conveyor belt is looped over the composite rolls.
The top of all the support rollers are located on the same horizontal plane and the bottom of all the composite rollers are located on the same horizontal plane, the support roller group is opposite to the composite roller group up and down, and a second extrusion channel 43 is formed between the support roller group and the composite roller group.
In this embodiment, the upper conveying roller, the lower conveying roller, the squeeze roller, the support roller, and the composite roller are rotatably mounted on the frame via bearings and extend in a direction of a second axis that extends in a horizontal direction and is perpendicular to the first axis.
A first motor 61 and a second motor 62 are further mounted on the frame, the first motor 61 drives the upper conveying roller, the lower conveying roller and the squeezing roller to rotate through a first driving belt 63, and the second motor 62 drives the supporting roller and the compound roller to rotate through a second driving belt 64. It will be appreciated that in other applications, a chain may be used instead of the first drive belt. The number of the first motor and the second motor may be selected according to the specific arrangement of the apparatus.
This divider 10 can be with rock wool felt 80 along the vertical direction split into first layering 81 and second layering 82, and wherein first layering 81 is located the top of second layering 82, and this first layering 81 can move towards fixed presser 4 direction along upper conveying portion 21, and this second layering 82 can move towards fixed presser 4 direction along lower conveying portion 22 through pan feeding mouth 26. The first divided layer 81 is compressed by the pressing portion 23 while moving along the upper conveying portion 21, so that the density of the first divided layer 81 is increased, and is formed into a high-density batt layer 83; the high-density cotton felt layer 83 and the second split layer 82 are compressed at the same time by the fixed press 41 and then combined together to form a dual-density rock wool panel 84.
In order to adjust the height of the first extrusion channel and the height of the second extrusion channel, in this embodiment, a first lifting device 65 and a second lifting device 67 are further mounted on the frame.
The two opposite sides of the second axial direction of the frame are respectively provided with a first lifting device 65, each first lifting device 65 comprises a pneumatic cylinder 651 and a first bearing seat 653, the pneumatic cylinder is mounted on the frame, a piston rod 652 of the pneumatic cylinder extends downwards along the vertical direction, the first bearing seat 653 is mounted at the lower end of the piston rod, and two ends of the extrusion roller are respectively rotatably mounted on the first bearing seats through a bearing. A first motor mounting seat 661 is mounted at a lower end of one of the first bearing seats, a third motor 66 is mounted on the first motor mounting seat 661, and an output shaft of the third motor is connected with the squeeze roll to drive the squeeze roll to rotate.
The second lifting device 67 has the same structure as the first lifting device 65, and the two ends of the compound roller are rotatably mounted on the second bearing seats 673 of the second lifting device 67 via a bearing, respectively. The fourth motor 68 is mounted on the second motor mounting base 681, and an output shaft of the fourth motor 68 is connected to the composite roll to drive the composite roll to rotate. A second motor mount 681 is mounted on the lower end of the second bearing housing.
In this embodiment, the first lifting device 65 and the second lifting device 67 both use pneumatic cylinders, and it is understood that in other embodiments, the first lifting device 65 and the second lifting device 67 may also use electric cylinders or hydraulic cylinders.
In this embodiment, a flow guide 5 is disposed between the feeding port 29 and the dividing machine 10, and the flow guide 5 is wedge-shaped with its small end facing the dividing machine 10. In the horizontal direction, the small end of the flow guide piece is aligned to the horizontal section of the saw blade of the horizontal band saw, so that the first layering and the second layering can move along the upper conveying part and the lower conveying part respectively.
The following describes a method for producing the dual-density rock wool board, which is performed by using the production equipment for the dual-density rock wool board. The production method specifically comprises the following steps:
(1) the secondary cotton felt laid by the pendulum bob is fed into the pleating machine 100, and is pleated by the pleating plate 110 of the pleating machine 100 to form the rock wool felt 80, and the rock wool felt 80 is moved toward the divider 10 by the urging of the pleating machine 100, and is divided into the first layer 81 and the second layer 82 in the thickness direction by the divider 10.
(2) The first layer 81 is positioned on the upper side of the second layer 82, and under the action of the flow guide piece 5, the second layer moves to the lower conveying part 22 through the feeding hole 26, is discharged from the discharging hole 27 and passes through the gap between the supporting part 41 and the compounding part 42;
the first layer moves up onto the upper conveying part 21, then passes through the first pressing passage between the upper conveying part 21 and the pressing part 23, then passes through the gap between the support part 41 and the combining part 42, and is laid over the second layer.
The first divided layer is compressed to a first set thickness while passing through the first pressing passage, the density of the first divided layer is increased, and a high density cotton felt layer 83 is formed, and the high density cotton felt layer 81 and the second divided layer 82 are simultaneously compressed while simultaneously passing through the second pressing passage and are combined together to form a dual density cotton wool board 84 having a second set thickness. Finally, the double-density rock wool board 84 is sent into a curing furnace and cured for about 2 to 20 minutes at the temperature of 200 ℃ and 300 ℃ to obtain the product. Specifically, in the present embodiment, the temperature in the curing furnace is 250-300 ℃, and the curing time is 12 minutes.
In the dual density rock wool board that prepares in this embodiment, wherein high density cotton felt layer can regard as building outer wall insulation material's facade, utilizes the dual density rock wool board that this application produced, and its bulk density is 120kg/m3, and wherein the tensile strength on high density layer is 19kPa, and bulk tensile strength is 11 kPa. And the tensile strength of the conventional rock wool board with the same overall density in the prior art is only 7.5 kPa. The whole tensile strength of the double density rock wool board of producing in this embodiment is 2.53 times of current conventional rock wool board, and wherein the tensile strength on high density layer is 1.46 times of current conventional rock wool board.
According to the data, the tensile strength of the double-density plate of the rock wool plate with the same density is far greater than that of the conventional rock wool plate, and the double-density plate with the lower density can be selected to replace the conventional rock wool plate under the same strength requirement, so that the weight reduction of the rock wool plate is realized.
Claims (10)
1. A production method of a double-density rock wool board is characterized in that a rock wool felt is divided into a first layer and a second layer along the thickness direction, the first layer and the second layer move synchronously along the same direction, in the moving process, the first layer is compressed along the thickness direction, the density of the first layer is increased, a high-density rock wool felt layer is formed, the high-density rock wool felt layer and the second layer are overlapped together and are simultaneously compressed and then combined together, and the double-density rock wool board is formed.
2. The method of claim 1, wherein the width of the rock wool blanket extends horizontally, the thickness of the rock wool blanket extends vertically, and the rock wool blanket is divided in an up-down direction into a first layer and a second layer, wherein the first layer is located above the second layer.
3. The method of claim 1, wherein the rock wool felt is pleated before being cut.
4. The production equipment for the double-density rock wool board is characterized by comprising a dividing machine, a layering pressurizing machine and a fixed pressurizing machine which are sequentially arranged along a first axial direction, wherein the layering pressurizing machine comprises a rack, an upper conveying part, a lower conveying part and an extruding part, the upper conveying part, the lower conveying part and the fixed pressurizing machine are mounted on the rack, the extruding part is positioned above the upper conveying part, and the lower conveying part is positioned below the upper conveying part; the first axis extends in a horizontal direction;
a cotton layer channel is formed between the upper conveying part and the lower conveying part, a feeding port is formed at one end of the cotton layer channel facing the dividing machine, and a discharging port is formed at one end of the cotton layer channel facing the fixed pressurizing machine;
the fixed pressing machine comprises a supporting part and a composite part which are arranged along the vertical direction, wherein the composite part is positioned above the supporting part;
the dividing machine can divide the rock wool felt into a first layer and a second layer along the vertical direction, wherein the first layer is positioned above the second layer, the first layer can move towards the fixed pressurizing machine along the upper conveying part, and the second layer can move towards the fixed pressurizing machine along the lower conveying part through the feeding port; the first layered layer is compressed by the pressing part while moving along the upper conveying part, so that the density of the first layered layer is increased and the first layered layer is formed into a high-density cotton felt layer; the high-density cotton felt layer and the second sub-layer are compressed on a fixed pressing machine and then combined together to form the double-density rock wool board.
5. The production equipment according to claim 4, wherein the upper transport portion includes at least one upper transport roller set, each upper transport roller set including at least two upper transport rollers, the at least two upper transport rollers being arranged at intervals in the first axial direction, the at least two upper transport roller sets being arranged in sequence in the first axial direction when the upper transport portion includes the at least two upper transport roller sets;
the extrusion part comprises at least one extrusion roller group, each extrusion roller group comprises at least two extrusion rollers, the at least two extrusion rollers are arranged at intervals along a first axial direction, and when the extrusion part comprises at least two extrusion roller groups, the at least two extrusion roller groups are sequentially arranged along the first axial direction;
at least one upper conveying roller group is vertically opposite to one extrusion roller group, and a first extrusion channel is formed between the upper conveying roller group and the extrusion roller group which are vertically opposite;
the lower conveying part comprises at least one lower conveying roller group, each lower conveying roller group comprises at least two lower conveying rollers, the at least two lower conveying rollers are arranged at intervals along a first axial direction, and when the lower conveying part comprises the at least two lower conveying roller groups, the at least two lower conveying roller groups are sequentially arranged along the first axial direction;
the supporting part comprises at least one supporting roller group, each supporting roller group comprises at least two supporting rollers, the at least two supporting rollers are arranged at intervals along the first axial direction, and when the supporting part comprises at least two supporting roller groups, the at least two supporting roller groups are sequentially arranged along the first axial direction;
the composite part comprises at least one composite roller set, each composite roller set comprises at least two composite rollers, the at least two composite rollers are arranged at intervals along a first axial direction, and when the composite part comprises the at least one composite roller set, the at least two composite roller sets are sequentially arranged along the first axial direction;
at least one supporting roller set is vertically opposite to one composite roller set, and a second extrusion channel is formed between the vertically opposite supporting roller set and the composite roller set;
the upper conveying roller, the lower conveying roller, the squeeze roller, the supporting roller and the composite roller are all rotatably arranged on the frame and all extend along the direction of a second axis, and the second axis extends along the horizontal direction and is perpendicular to the direction of the first axis;
the frame is also provided with a first motor and a second motor, the first motor is used for driving the upper conveying roller and the lower conveying roller to rotate, and the second motor is used for driving the supporting roller to rotate.
6. The manufacturing facility of claim 5, wherein at least one of the upper conveyor roller sets further comprises a first conveyor belt looped around at least two of the upper conveyor rollers;
at least one of the sets of press rolls further comprises a second conveyor belt encircling at least two of the press rolls in the set of press rolls;
at least one lower conveying roller group further comprises a third conveying belt which is arranged around at least two lower conveying rollers in the lower conveying roller group;
at least one of the support roller sets further comprises a fourth conveyor belt encircling at least two support rollers in the support roller set,
at least one of the composite roll sets further includes a fifth conveyor belt encircling at least two of the composite rolls in the composite roll set.
7. The production equipment of claim 4, wherein a first lifting device and a second lifting device are mounted on the frame, the extrusion part is mounted on the first lifting device, and the compounding part is mounted on the second lifting device; the first lifting device is used for moving the extrusion part along the vertical direction so as to adjust the distance between the extrusion part and the upper conveying part; the second lifting device is used for moving the composite part along the vertical direction so as to adjust the distance between the support part and the composite part;
and a third motor for driving the extrusion roller to rotate is installed on the first lifting device, and a fourth motor for driving the composite roller to rotate in an extrusion manner is installed on the second lifting device.
8. The production rig of claim 4, wherein the divider is a horizontal band saw.
9. The production equipment as claimed in claim 8, wherein a flow guide member is provided between the feed port and the divider, the flow guide member having a wedge shape with a small end facing the divider;
in the horizontal direction, the small end of the flow guide piece is aligned to the horizontal section of the saw blade of the horizontal band saw, so that the first layering and the second layering can move along the upper conveying part and the lower conveying part respectively.
10. The production rig as claimed in claim 4 wherein a pleating machine is mounted on the side of the dividing machine facing away from the layering press for pleating the rock wool blanket prior to cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318485.3A CN114750443A (en) | 2022-03-29 | 2022-03-29 | Production method and production equipment of double-density rock wool board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318485.3A CN114750443A (en) | 2022-03-29 | 2022-03-29 | Production method and production equipment of double-density rock wool board |
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| CN114750443A true CN114750443A (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210318485.3A Pending CN114750443A (en) | 2022-03-29 | 2022-03-29 | Production method and production equipment of double-density rock wool board |
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| CN (1) | CN114750443A (en) |
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