Calcium silicate / fiber cement board multi-process parameter simulation forming device

Abstract

The utility model discloses a calcium silicate / fiber cement board multi-process parameter simulation forming device, which comprises a support base, a pressurizing platform, a pressure head platform, a filter mold combination, a pressurizing module and a suction filtration module, the pressure head platform is fixedly connected with the support base, the pressurizing platform is connected between the pressure head platform and the support base in a limiting manner, and the filter mold combination is connected with the pressurizing module. The pressurizing module is arranged on one side of the supporting bottom plate, and the suction filtration module is arranged on the other side of the supporting bottom plate. The calcium silicate / fiber cement board multi-process parameter simulation forming device provided by the utility model is simple in equipment operation and low in investment cost, and can simulate the forming process of industrial production of calcium silicate / fiber cement boards by a reduction flow slurry / beater-addition method; and single or superposed change simulation of formula slurry feeding system parameters, forming process parameters and the like can be realized, and the influence of a material system on the performance of the plate can be explored by adjusting the formula and additives.

Description

Technical Field

[0001] The utility model relates to the technical field of preparation of calcium silicate / fiber cement boards, in particular to a multi-process parameter simulation molding device for calcium silicate / fiber cement boards. Background Art

[0002] Calcium silicate / fiber cement board is a green and environmentally friendly inorganic building material made of siliceous and calcium materials as the main binder, inorganic mineral fibers or cellulose fibers as reinforcement materials, and is prepared through molding, pressurization / non-pressurization, steam curing / non-steam curing and other processes. Calcium silicate / fiber cement board has gradually developed into one of the important materials in the construction field due to its excellent properties such as moisture resistance, mildew resistance, fire resistance, and good dimensional stability.

[0003] At present, the main industrial molding methods for calcium silicate / fiber cement board are the copying method and the slurry method, but molding equipment with high process parameter simulation and simple operation is rare. The invention patent CN108481542B provides a laboratory simulation equipment and method for producing calcium silicate board by slurry and copying method, but there is no description on the operability of simulation of copying rate and molding cylinder pressure parameters, and the number of molding equipment is large and the operation is complicated; the utility model CN205152728U provides a device for preparing calcium silicate board. This utility model only broadens the molding method, but ignores the simulation of process parameters and the simulation of vacuum dehydration method. Utility Model Content

[0004] The utility model aims to provide a multi-process parameter simulation molding device for calcium silicate / fiber cement board in view of the problems of complicated equipment, complex operation, few simulation parameters and the like in the prior art.

[0005] The technical solution adopted to achieve the purpose of this utility model is:

[0006] A multi-process parameter simulation molding device for calcium silicate / fiber cement board, comprising a support base, a pressurizing platform, a pressure head platform, a filter mold assembly, a pressurizing module and a filtration module, wherein the pressure head platform is fixedly connected to the support base, the pressurizing platform is limitedly connected between the pressure head platform and the support base, the pressurizing module is arranged on one side of the support base, and the filtration module is arranged on the other side of the support base;

[0007] The pressurizing module comprises a jack arranged on the supporting base, a pressurizing head fixed to the bottom of the pressurizing head platform, and a pressurizing slot arranged on the pressurizing platform, wherein the pressurizing slot is located directly below the pressurizing head, the pressurizing slot and the pressurizing head are nested, the bottom of the jack is fixedly connected to the supporting base, and the top of the jack is fixedly connected to the bottom surface of the pressurizing slot;

[0008] The filtration module comprises a circulating water vacuum pump and a filtration module slot arranged on the pressure head platform.

[0009] In the above technical solution, the support base and the pressure head platform are fixedly connected by four support connecting columns, each of the support connecting columns is provided with a limiting bolt, the four limiting bolts are located in the same horizontal plane, and the pressure platform moves between the limiting bolts and the pressure head platform.

[0010] In the above technical solution, a buffer spring is sleeved on the supporting connecting column between the pressurizing platform and the pressure head platform.

[0011] In the above technical solution, a displacement scale is fixed on the pressure head platform, the top end of the displacement scale is fixed on the side of the pressure head platform, and the displacement scale is parallel to any supporting connecting column.

[0012] In the above technical solution, each of the supporting connecting columns is provided with a sleeve, the upper end of the sleeve passes through the pressurizing platform and is fixed, the lower end of the sleeve is located above the limiting nut, and the sleeve is thick at the top and thin at the bottom.

[0013] In the above technical solution, the filtration module also includes a filtration bottle, and the circulating water vacuum pump, the filtration bottle and the filtration module slot are connected in sequence.

[0014] In the above technical solution, the support base, the pressurizing platform and the pressure head platform are of equal width, the support base and the pressurizing platform are of equal length, and the length of the pressure head platform is 1 / 2-2 / 3 of the length of the pressurizing platform.

[0015] In the above technical solution, the filter module combination includes a metal filter module and one or two layers of filter cloth. The filter hole spacing of the metal filter module is 30-40 mm, the filter hole diameter is 2-3 mm, and the filter cloth is diamond gauze or fiber fabric wool cloth.

[0016] In the above technical scheme, a 30-50mm wide rubber layer is installed around the suction filter module slot, the pressurized slot is a "U"-shaped slot, the middle area between the two "mouth" shapes is an annular guide groove, and the internal "mouth" shape is provided with multiple parallel vertical strip guide grooves and two horizontal corner guide grooves.

[0017] In the above technical solution, the internal "mouth"-shaped vertical strip guide groove is 3-5mm wide and 2-3mm deep. The width and depth of the two horizontal corner guide grooves and the annular guide groove are consistent with the vertical parallel strip guide grooves. Drainage outlets are left at the ends of the two horizontal corner guide grooves and the annular guide groove.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model provides a calcium silicate / fiber cement board multi-process parameter simulation molding device. The equipment is simple to operate and has low investment cost. It can not only simulate the molding process of industrial production of calcium silicate / fiber cement board by reduction slurry / copying method, but also realize single or superimposed change simulation of formula slurry feeding system parameters and molding process parameters. Through the adjustment of formula and admixture, the influence of material system on the performance of board can be explored; through the adjustment of parameters of filtration system, the influence of process parameters such as vacuum degree and copying rate on the performance of board can be explored; through the preparation and pressing of small material layers one by one, the influence of material layer thickness and molding cylinder pressure on the performance of board can be explored; at the same time, the pressure device can realize the exploration of press system process parameters and the simulated preparation of ultra-high or ultra-light board products, and has comprehensive and multi-level process simulation research and development attributes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Axonometric diagram of the multi-process parameter simulation molding device for calcium silicate / fiber cement board;

[0021] Figure 2 A half-section diagram of the pressurizing module of the multi-process parameter simulation molding device for calcium silicate / fiber cement board;

[0022] Figure 3 It is a filter mold combination diagram of the multi-process parameter simulation molding device of calcium silicate / fiber cement board;

[0023] Figure 4 This is a diagram of the combination of the filtration mold slot of the multi-process parameter simulation molding device of calcium silicate / fiber cement board.

[0024] The numbers in the figure are: 1-support base, 2-pressure platform, 3-pressure head platform, 4-support connecting column, 5-buffer spring, 6-limit bolt, 7-displacement scale, 8-pressure head, 9-pressure slot, 10-filter mold assembly, 11-circulating water vacuum pump, 12-filter bottle, 13-pointer digital display hydraulic jack, 14-filter cloth, 15-plate wet blank, 16-filter hole, 17-sleeve, 18-filter mold slot, 19-rubber layer. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Example 1

[0027] A multi-process parameter simulation molding device for calcium silicate / fiber cement board, such as Figure 1As shown, it includes a support base 1, a pressurizing platform 2, a pressure head platform 3, a filter mold assembly 10, a pressurizing module and a filtration module, the pressure head platform 3 and the support base 1 are fixedly connected, the pressurizing platform 2 is limitedly connected between the pressure head platform 3 and the support base 1, the support base 1 and the pressure head platform 3 are fixedly connected by four supporting connecting columns 4, each of the supporting connecting columns 4 is provided with a limiting bolt 6, the four limiting bolts 6 are located in the same horizontal plane, the pressurizing platform 2 moves between the limiting bolt 6 and the pressure head platform 3, and the supporting connecting columns 4 between the pressurizing platform 2 and the pressure head platform 3 are provided with a buffer spring 5. Each of the supporting connecting columns 4 is provided with a sleeve 17, the upper end of the sleeve 17 passes through the pressurizing platform 2 and is fixed, and the lower end is located above the limiting nut. The sleeve 17 is thick at the top and thin at the bottom. The upper ends of the four sleeves 17 are fixedly connected to the pressurizing platform 2. The pressurizing platform 2 is forced to rise, driving the four sleeves 17 to rise synchronously. The upper diameter of the sleeve 17 is large, the supporting area is large, the force is uniform, and the stability is good. At the same time, after the pressure is completely released, the lower diameter of the sleeve 17 contacts and supports the limiting nut, and the diameter is basically equivalent to the limiting nut. At the same time, due to the design of the larger diameter of the sleeve, the level of the pressurizing platform 2 can be guaranteed, and the long-term horizontal stability can be increased. A displacement scale 7 is fixed on the pressure head platform 3, and the top of the displacement scale 7 is fixed on the side of the pressure head platform 3. The displacement scale 7 is parallel to any supporting connecting column 4.

[0028] The support base 1, the pressurizing platform 2 and the pressure head platform 3 are of equal width, the support base 1 and the pressurizing platform 2 are of equal length, the length of the pressure head platform 3 is 1 / 2-2 / 3 of the length of the pressurizing platform 2, the pressurizing module is arranged on one side of the support base, and the filtration module is arranged on the other side of the support base. Figure 2-3 As shown, the filter module assembly 10 includes a metal filter module and one or two layers of filter cloth 14. The filter holes 16 of the metal filter module have a spacing of 30-40 mm and a diameter of 2-3 mm. The filter cloth 14 is a diamond yarn mesh or a fiber fabric felt cloth.

[0029] The pressurizing module includes a jack (in this embodiment, a pointer digital display hydraulic jack 13) disposed on the support base, a pressure head 8 fixed to the bottom of the pressure head platform 3, and a pressure slot 9 disposed on the pressure platform 2. The pressure slot 9 is located directly below the pressure head 8, and the pressure slot 9 and the pressure head 8 are nested. The bottom of the pointer digital display hydraulic jack 13 is fixedly connected to the support base 1, and the top of the pointer digital display hydraulic jack 13 is fixedly connected to the bottom surface of the pressure slot 9. The pressure slot 9 is a "return" shaped slot. The middle area between the two "square" shapes is an annular diversion groove. Multiple parallel vertical strip-shaped diversion grooves and two horizontal corner diversion grooves are provided inside the "square" shape. The width of the vertical strip-shaped diversion grooves inside the "square" shape is 3-5 mm, and the depth is 2-3 mm. The width and depth of the two horizontal corner diversion grooves and the annular diversion groove are the same as those of the vertical parallel strip-shaped diversion grooves. Drainage ports are provided at the ends of the two horizontal corner diversion grooves and the annular diversion groove.

[0030] The suction filtration module includes a circulating water vacuum pump 11, a suction filtration bottle 12, and a suction filtration filter mold slot 18 disposed on the pressure head platform 3. The circulating water vacuum pump 11, the suction filtration bottle 12, and the suction filtration filter mold slot 18 are connected in sequence. As Figure 4 shown, a rubber layer 19 with a width of 30-50 mm is installed around the suction filtration filter mold slot 18.

[0031] During use, during the preparation of the formulated slurry, any combination of powder raw materials and fiber materials can be achieved, and additives can also be introduced. The slurry can be quantitatively prepared, and the concentration can be adjusted according to test requirements. Different mesh numbers of the filter cloth 14 can also be selected. By simulating the forming process of the slurry flow / copier wire layer through the vacuum suction filtration system, the dehydration rate, effect, etc. of the formulated slurry can be monitored and compared by adjusting the mesh number of the filter cloth 14, controlling the vacuum of the circulating water vacuum pump 11, and adjusting the particle size of the formulated materials. At the same time, the suction filtration rate of the slurry can be calculated using the suction filtration water in the suction filtration bottle 12. On the one hand, it can explore the effects of formulation design, raw material particles, vacuum size, etc. on the layer copier, and the filter cloth 14 for production can also be optimized by fixing process parameters, so as to realize the multi-parameter optimization exploration in the preparation process of calcium silicate / fiber cement board.

[0032] At the same time, the multi-layer gradual forming can truly simulate the forming process of the slurry flow / copier wire forming cylinder. Due to the presence of the pointer digital display hydraulic jack 13 and the displacement scale 7, the extrusion effect of constant pressure, variable pressure, etc. on a single layer can be achieved by the simulated forming cylinder. During this process, by controlling the change of the single layer thickness and the selection of the pressurization mode between single layers, the influence of the layer change and the pressurization method of the forming cylinder on the performance of the board can be explored. Especially, it has important practical significance for exploring aspects such as improving the interfacial bonding force of the board and reducing the delamination and bulging of the board.

[0033] Embodiment 2

[0034] Based on Example 1, the simulation molding steps of the calcium silicate / fiber cement board are as follows:

[0035] Step 1: Prepare the ideal concentration slurry according to the designed formula, stir evenly and set aside.

[0036] Step 2, placing the filter module assembly 10 in the filtration module slot 18, and the filter cloth 14 in the filter module assembly 10 is made of fiber fabric wool cloth.

[0037] Step 3, evenly place the slurry to be used on the filter cloth 14, start the circulating water vacuum pump 11 to filter and dehydrate, and the slurry collection rate can be calculated using the filtered water in the filter bottle 12.

[0038] Step 4: After the slurry is filtered, a wet plate blank 15 with a certain moisture content is formed, and a layer of filter cloth 14 is laid on the top of the wet plate blank, and the wet plate blank is transferred to the pressurizing module as a whole.

[0039] Step 5, placing the filter mold assembly 10 with the wet plate blank 15 in the pressurizing slot 9, and pressurizing at a uniform speed using the pointer digital display hydraulic jack 13.

[0040] Step 6, after the pressure molding is completed according to the pressure parameters, the pressure is released, and the filter mold assembly 10 with the pressurized plate wet blank 15 is taken out as a whole for demoulding, and then enters the next process. After the filter mold and the felt are cleaned, the above simulation molding steps are repeated.

[0041] This process can also be achieved by gradually forming multiple material layers. First, a certain concentration of slurry is prepared according to the weight of a single material layer, and a small material layer is formed by suction filtration according to the forming steps. Then, the wet blank of the small material layer of the plate is removed from the filter mold and placed in another filter mold with a filter cloth 14 on the bottom in the pressurized card slot 9. The top layer of filter cloth 14 is laid for pressurization and pressure relief. The second single material layer is prepared by suction filtration according to the steps, and the top layer of filter cloth 14 in the pressurized area filter mold is removed. The second single material layer is covered on the first single material layer, and the top layer of filter cloth 14 is laid for pressurization and pressure relief again. This process is repeated until the preparation of the wet blank 15 of the plate is completed, and then the wet blank is pressurized and formed according to the pressurization process parameters.

[0042] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0043] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-process parameter simulation molding device for calcium silicate / fiber cement board, characterized in that: It includes a support base, a pressurizing platform, a pressure head platform, a filter module combination, a pressurizing module, and a suction filtration module. The pressure head platform is fixedly connected to the support base. The pressurizing platform is connected in a limited way between the pressure head platform and the support base. The pressurizing module is arranged on one side of the support base, and the suction filtration module is arranged on the other side of the support base. The pressurizing module includes a jack arranged on the support base, a pressure head fixed to the bottom of the pressure head platform, and a pressurizing slot arranged on the pressurizing platform. The pressurizing slot is directly below the pressure head, and the pressurizing slot and the pressure head are nested. The bottom of the jack is fixedly connected to the support base, and the top of the jack is fixedly connected to the bottom surface of the pressurizing slot. The suction filtration module includes a circulating water vacuum pump and a suction filtration filter slot arranged on the pressure head platform.

2. The calcium silicate / fiber cement board multi-process parameter simulation molding device according to claim 1, characterized in that: The support base and the pressure head platform are fixedly connected by four support connecting columns. Each support connecting column is provided with a limit bolt, and the four limit bolts are on the same horizontal plane. The pressurizing platform moves between the limit bolts and the pressure head platform.

3. The multi-process parameter simulation molding device of calcium silicate / fiber cement board according to claim 2, characterized in that: A buffer spring is sleeved on the support connecting column between the pressurizing platform and the pressure head platform.

4. The multi-process parameter simulation molding device of calcium silicate / fiber cement board according to claim 2, characterized in that: A displacement scale is fixed on the pressure head platform. The top end of the displacement scale is fixed on the side edge of the pressure head platform, and the displacement scale is parallel to any one of the support connecting columns.

5. The calcium silicate / fiber cement board multi-process parameter simulation molding device according to claim 2, characterized in that: Each support connecting column is provided with a sleeve. The upper end of the sleeve passes through the pressurizing platform and is fixed, and the lower end is above the limit nut. The sleeve is thick at the top and thin at the bottom.

6. The calcium silicate / fiber cement board multi-process parameter simulation molding device according to claim 1, characterized in that: The suction filtration module further includes a suction filtration bottle, and the circulating water vacuum pump, the suction filtration bottle, and the suction filtration filter slot are connected in sequence.

7. The calcium silicate / fiber cement board multi-process parameter simulation molding device according to claim 1, characterized in that: The support base, the pressurizing platform, and the pressure head platform are of the same width. The support base and the pressurizing platform are of the same length. The length of the pressure head platform is 1 / 2 - 2 / 3 of the length of the pressurizing platform.

8. The multi-process parameter simulation molding device of calcium silicate / fiber cement board according to claim 1, characterized in that: The filter module combination includes a metal filter and one or two layers of filter cloth. The pore spacing of the metal filter is 30 - 40 mm, and the pore diameter is 2 - 3 mm. The filter cloth is a diamond wire mesh or a fiber fabric felt.

9. The multi-process parameter simulation molding device for calcium silicate / fiber cement board according to any one of claims 1 to 8, characterized in that: A rubber layer with a width of 30 - 50 mm is installed around the suction filtration filter slot. The pressurizing slot is a "return" - shaped slot. The middle area between the two "mouth" - shaped parts is an annular diversion groove, and multiple parallel vertical strip - shaped diversion grooves and two horizontal corner diversion grooves are arranged in the inner "mouth" - shaped part.

10. The calcium silicate / fiber cement board multi-process parameter simulation molding device according to claim 9, characterized in that: The width of the vertical strip - shaped diversion grooves in the inner "mouth" - shaped part is 3 - 5 mm, and the depth is 2 - 3 mm. The width and depth of the two horizontal corner diversion grooves and the annular diversion groove are the same as those of the vertical parallel strip - shaped diversion grooves. Drainage ports are left at the ends of the two horizontal corner diversion grooves and the annular diversion groove.

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