Layered sodium disilicate preparation equipment

Abstract

The utility model relates to the technical field of chemical equipment, and provides layered sodium disilicate preparation equipment which comprises a machine frame, a sintering furnace, a pressing machine, a heat preservation cover and a roller kiln, and the sintering furnace, the pressing machine, the heat preservation cover and the roller kiln are sequentially connected. The convex blocks on the shaping rolling shaft can leave holes in the molten raw materials and push the raw materials to move on the shaping plate, and the molten raw materials can be extruded into a thin plate shape under the action of the limiting strips on the two sides; when the shaping rolling shaft rotates to a certain angle, the cutting tool cuts off the thin plate, the cut-off thin plate is driven by the driving rolling shaft to continuously move on the shaping plate, when the thin plate passes through the heat preservation cover and the roller kiln, thin plate raw materials can be crystallized at a certain temperature, and flaky sodium disilicate is obtained after crystallization and cooling. A user can directly use the flaky sodium disilicate according to use requirements, and the flaky sodium disilicate can also be crushed to obtain powdery sodium disilicate with a proper particle size for use.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical processing equipment technical field especially relates to a layered sodium disilicate preparation equipment. BACKGROUND

[0002] Sodium disilicate is a kind of basic chemical raw material, mainly used in washing industry, as sodium silicate, and water glass, sodium silicate (Na2SiO3·5H2O) or sodium silicate (Na2SiO3·9H2O) compared to sodium disilicate, there is no extra water in the transportation process, obviously can save freight;Compared with anhydrous sodium silicate, the cost of sodium disilicate is cheaper, so sodium disilicate is a kind of promising new chemical material.

[0003] The Chinese patent with the application number CN200410035813.0 provides a layered crystalline sodium disilicate production method, first make water glass into water glass, then spray dry into powder, and then rotary furnace crystallization treatment, this process is more complicated and has a lot of energy consumption.

[0004] Since the conventional sodium disilicate is in powder form, the existing preparation equipment mostly directly outputs the powder-shaped sodium disilicate;When changing the processing formula to produce block-shaped sodium disilicate, the existing equipment is difficult to be compatible. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a layered sodium disilicate preparation equipment, which aims to solve the problem that the existing equipment cannot be compatible with block-shaped sodium disilicate production and processing.

[0006] In order to achieve the above purpose, the utility model provides a layered sodium disilicate preparation equipment, which comprises a rack and a sintering furnace, a press, a heat preservation cover and a roller kiln connected in sequence, the sintering furnace is used for melting raw materials, the press is used for pressing the molten raw materials into blocks, the heat preservation cover is used for temperature insulation, and the roller kiln is used for temperature control crystallization of the block-shaped raw materials;

[0007] The press and the heat preservation cover are both arranged on the rack, the press comprises a roller shaft driving part, a shaping roller shaft and a driving roller shaft, a heat preservation seat is arranged on the rack, a shaping plate is arranged on the heat preservation seat, an adjustable limiting strip is installed on the shaping plate, the shaping roller shaft and the driving roller shaft are both installed on the heat preservation seat through a roller shaft seat, the roller shaft driving part is used for driving the shaping roller shaft and the driving roller shaft to rotate, a cutting tool is arranged on the shaping roller shaft, the cutting tool is used for cutting off the raw materials in molten state, a plurality of groups of protrusions are uniformly arranged on the shaping roller shaft and the driving roller shaft, and the protrusions are used for driving the molten raw materials to slide on the shaping plate.

[0008] Further, the heat preservation seat is provided with a plurality of groups of heat preservation covers, each group of heat preservation covers is provided with a group of driving rollers, the heat preservation cover comprises a heat preservation inner cover and a protective outer cover, the heat preservation inner cover is installed on the shaping plate, the driving roller is arranged in the heat preservation inner cover, and the protective outer cover is sleeved outside the heat preservation inner cover; handles are arranged on the heat preservation inner cover and the protective outer cover; and air outlets 45 are further arranged on the top of the heat preservation inner cover 40 and the protective outer cover 41.

[0009] Further, a plurality of limiting seats are arranged on the shaping plate, a limiting clamping convex is arranged at the bottom of the heat preservation inner cover, and the limiting clamping convex is matched with the limiting seat; a limiting block is arranged on the heat preservation seat, a limiting groove is arranged on the protective outer cover, and the limiting block is matched with the limiting groove.

[0010] Further, a cutter groove is arranged on the shaping roller, and a cutting tool is slidably arranged in the cutter groove; locking holes are arranged on the cutting tool and the cutter groove, and the locking holes are used for installing locking screws.

[0011] Further, the roller kiln comprises a support, a protective layer, heating rods, supporting rollers and crystallization driving members, the protective layer is installed on the support, the protective layer is provided with heating grooves, a plurality of groups of supporting rollers and heating rods are installed in the heating grooves, and the heating rods are arranged above the supporting rollers; the crystallization driving members are installed on the support, and the crystallization driving members are used for driving the plurality of groups of supporting rollers to rotate.

[0012] Further, the protective layer comprises a refractory brick layer and a refractory cotton layer, the refractory cotton layer is located outside the refractory brick layer, the refractory brick layer is provided with a supporting seat, and the two ends of the supporting roller penetrate through and extend out of the supporting seat; the supporting seat is used for supporting the refractory brick layer.

[0013] Further, ball bearings are arranged on the two sides of the supporting roller, supports are arranged on the two sides of the support, and the supporting roller is installed on the support through the ball bearings; an inclined gear is further arranged on the supporting roller, a gear roller is arranged on the support, a gear on the gear roller is engaged with the inclined gear, and the crystallization driving members drive the supporting roller to rotate through the gear roller and the inclined gear.

[0014] Further, the upper cutting surface of the supporting roller and the upper surface of the shaping plate are located in the same plane; at least six groups of heating rods and forty supporting rollers are arranged in the heating groove, and the supporting rollers and the heating rods are uniformly installed in the heating groove.

[0015] Compared with the prior art, the molten raw material output after the mixed raw material is sintered by the sintering furnace flows to the shaping plate, the protrusions on the shaping roller can leave holes on the molten raw material and push the raw material to move on the shaping plate, under the action of the limiting strips on the two sides, the molten raw material will be extruded into a thin plate shape; when the shaping roller is rotated to a certain angle, the cutting tool cuts the thin plate, the cut thin plate continues to move on the shaping plate under the driving of the driving roller, when passing through the heat preservation cover and the roller kiln, the thin plate raw material will crystallize in a certain temperature, and the crystallized and cooled thin plate raw material is sheet-shaped sodium disilicate. The user can directly use the sheet-shaped sodium disilicate according to the use requirement, and in the occasion that the powder-shaped sodium disilicate is needed, the sheet-shaped sodium disilicate can also be crushed to obtain the powder-shaped sodium disilicate with a suitable particle size for use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a plane schematic view of the utility model;

[0017] Figure 2 is a top view of the utility model;

[0018] Figure 3 is a perspective view of the sintering furnace in the utility model;

[0019] Figure 4 is a perspective view of the press and the heat preservation cover in the utility model;

[0020] Figure 5 is a perspective view of the rack in the utility model;

[0021] Figure 6 is a top view of the rack in the utility model;

[0022] Figure 7 is a perspective view of the press in the utility model;

[0023] Figure 8 is a perspective view of the shaping roller in the utility model;

[0024] Figure 9 is a sectional view of the shaping roller in the utility model;

[0025] Figure 10 is a perspective sectional view of the driving roller in the utility model;

[0026] Figure 11 is a perspective sectional view of the heat preservation cover in the utility model;

[0027] Figure 12 is a perspective view of the second embodiment of the heat preservation cover in the utility model;

[0028] Figure 13is the perspective view of the roller kiln in the utility model;

[0029] Figure 14 is the front view of the roller kiln in the utility model;

[0030] Figure 15 is the sectional view of the roller kiln in the utility model.

[0031] Mark explanation:

[0032] Among them;

[0033] 1, sintering furnace;

[0034] 2, rack;20, heat preservation seat;200, limiting block;21, shaping plate;210, limiting seat;22, limiting strip;23, roller shaft seat;

[0035] 3, press;30, roller drive;31, shaping roller;32, drive roller;33, protruding block;34, cutting tool;35, tool groove;

[0036] 4, heat preservation cover;40, heat preservation inner cover;41, protective outer cover;42, handle;43, limiting card convex;44, limiting groove;45, air outlet;46, fault handling window;

[0037] 5, roller kiln;50, support;500, support seat;51, refractory brick layer;52, refractory cotton layer;53, heating groove;54, supporting roller;55, heating rod;56, crystallization drive;57, support seat. Specific implementation

[0038] The utility model will be explained in detail below in combination with specific embodiments.

[0039] In the utility model, except for another explicit provision and limitation, when the terms such as " set in " " connect " " connection " appear, these terms should be understood broadly, for example, can be fixedly connected, detachably connected or integrally connected;It can be directly connected or connected through one or more intermediate media. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances. For the direction words appearing in the utility model, it is to better explain the characteristics of features and the relationship between features. It should be understood that when the display direction of the utility model changes, the direction of the characteristics of features and the relationship between features also changes accordingly. Therefore, the direction word does not constitute the absolute limitation of the characteristics of features and the relationship between features in space, and only plays a relative limiting role.

[0040] For example, Figures 1 to 15The utility model provides a kind of layered sodium disilicate preparation equipment, including rack 2 and sequentially connected sintering furnace 1, press 3, heat shield 4 and roller hearth kiln 5, sintering furnace 1 is used to melt raw material, press 3 is used to press into block with molten raw material, heat shield 4 is used to temperature insulation, roller hearth kiln 5 is used to control temperature crystallization to block raw material;

[0041] Press 3 and heat shield 4 are all arranged on rack 2, and press 3 includes roller shaft driving part 30, shaping roller shaft 31 and driving roller shaft 32, rack 2 is provided with heat preservation seat 20, heat preservation seat 20 is provided with shaping plate 21, adjustable limiting strip 22 is installed on shaping plate 21, shaping roller shaft 31 and driving roller shaft 32 are both installed on heat preservation seat 20 through roller shaft seat 23, roller shaft driving part 30 is used to drive shaping roller shaft 31 and driving roller shaft 32 to rotate, cutting tool 34 is arranged on shaping roller shaft 31, cutting tool 34 is used to cut off raw material in molten state, and a plurality of groups of protrusions 33 are uniformly arranged on shaping roller shaft 31 and driving roller shaft 32, and the protrusions 33 are used to drive molten raw material to slide on shaping plate 21.

[0042] Through the above design scheme, the raw material quartz sand is mixed and stirred at a ratio of n = 2:1, and then the moisture content is controlled to be less than or equal to 7%, and then the molten raw material is obtained by burning at a temperature of 1150°C in the sintering furnace 1. Then, the molten raw material is poured onto the shaping plate 21. As the shaping roller shaft 31 rotates, the molten raw material is extruded into blocky sodium disilicate with a thickness of 8-12 mm. The width of the blocky sodium disilicate is limited by the limiting strip 22. In this embodiment, the limiting strip 22 is provided with a sliding groove, and the shaping plate 21 is provided with a threaded hole corresponding to the sliding groove. A locking screw is installed in the threaded hole to lock the limiting strip 22 on the shaping plate 21. When it is necessary to adjust the width of the blocky sodium disilicate, the worker can loosen the locking screw to allow the limiting strip 22 to slide on the shaping plate 21. After adjusting to the appropriate position, the locking screw is rotated to lock it. The cutting tool 34 on the shaping roller shaft 31 can cut the extruded blocky sodium disilicate to control the length of each blocky sodium disilicate. The cut blocky sodium disilicate slowly slides on the shaping plate 21 under the drive of the driving roller shaft 32. The temperature of the cut blocky sodium disilicate slowly decreases to about 800°C when it passes through the heat shield 4. Then, the blocky sodium disilicate enters the roller hearth kiln 5. After being crystallized and cooled at 800°C for 3-5 hours, layered sodium disilicate is obtained.

[0043] The layered sodium disilicate product obtained after crystallization can be directly stored in a warehouse, and can be directly used or used after being crushed into powder according to the application occasion. Compared with the preparation process of the traditional sodium disilicate powder, the layered sodium disilicate is prepared without preparing water glass, and the process of spraying water glass to prepare powder is also omitted, so that the redundant links and unnecessary energy consumption in the preparation process are reduced. In addition, compared with the previous powder form, the layered product becomes a thin flat plate, and the adjustment of the product shape further increases the flexibility of controlling the particle size. When a block is needed, it can be directly applied, and when powder is needed, the finished product can be broken down to the required particle size.

[0044] In the embodiment, a plurality of heat preservation covers 4 are arranged on the heat preservation seat 20, and each group of heat preservation covers 4 is provided with a group of driving rollers 32. The heat preservation cover 4 includes a heat preservation inner cover 40 and a protective outer cover 41. The heat preservation inner cover 40 is installed on the shaping plate 21, and the driving roller 32 is arranged in the heat preservation inner cover 40. The protective outer cover 41 is sleeved outside the heat preservation inner cover 40. The heat preservation inner cover 40 and the protective outer cover 41 are provided with handles 42. The top of the heat preservation inner cover 40 and the protective outer cover 41 is also provided with an air outlet 45.

[0045] In the embodiment, a plurality of limiting seats 210 are arranged on the shaping plate 21, and the heat preservation inner cover 40 is provided with a limiting protrusion 43. The limiting protrusion 43 is matched with the limiting seat 210. The heat preservation seat 20 is provided with a limiting block 200, and the protective outer cover 41 is provided with a limiting groove 44. The limiting block 200 is matched with the limiting groove 44.

[0046] Through the above design scheme, the heat preservation cover 4 can block high temperature to allow workers to approach the production equipment for production operation, avoiding the high temperature of the blocky sodium disilicate to cause the temperature in the factory building to rise, affecting the work of the workers. In the embodiment, the heat preservation inner cover 40 is made of high-temperature-resistant heat preservation material, such as using high-temperature-resistant alloy sheet on the surface of the heat preservation inner cover 40 and filling heat insulation cotton in the alloy sheet. Similarly, the protective outer cover 41 is made of heat insulation material. Since the shaping plate 21 is provided with a plurality of heat preservation covers 4, when it is necessary to check the blocky sodium disilicate at different stages or production failures occur (usually a plurality of small holes with a diameter of about 3 cm are arranged on the side wall of the heat preservation cover 4 for observing the situation in the heat preservation cover 4, and the small holes are usually sealed with refractory bricks), the workers can individually take up the corresponding protective outer cover 41 and heat preservation inner cover 40 to individually investigate a certain blocky sodium disilicate. When it is necessary to take up the heat preservation cover 4, the user can take up the protective outer cover 41 through the handle 42 and then take off the heat preservation inner cover 40 through the handle 42. The limiting seat 210 on the shaping plate 21 can clamp the limiting protrusion 43, so that the heat preservation inner cover 40 can be clamped on the shaping plate 21, and the limiting block 200 on the heat preservation seat 20 can conveniently position the protective outer cover 41.

[0047] The air outlet 45 at the top of the heat preservation inner cover 40 and the protective outer cover 41 is used to cooperate with the air circulation system of the factory building to cool the blocky sodium disilicate in the heat preservation cover 4. Specifically, an air suction pipeline is arranged above the heat preservation cover 4, and a fan is used to suck the high-temperature airflow in the heat preservation cover 4, so as to avoid that the temperature in the heat preservation cover 4 is too high to affect the subsequent processing. Since the air circulation device is usually arranged in the factory building, when in use, the air suction pipeline only needs to be installed in the air circulation device, and then the air suction pipeline is arranged close to the air outlet 45, so that the temperature in the heat preservation cover 4 can be controlled.

[0048] It should be noted that the utility model also provides a second embodiment of the heat preservation cover 4, as shown in the figure, the heat preservation cover 4 is a whole, and a plurality of fault handling windows 46 are arranged at intervals on the side surface of the heat preservation cover 4. The fault handling window 46 is installed on the heat preservation cover 4 through a hinge or a sliding seat, and the fault handling window 46 can be manually or automatically opened. The fault handling window 46 is made of the same fireproof and high-temperature-resistant material as the heat preservation cover 4, which facilitates the staff to check or solve the fault in the production of the blocky sodium disilicate when necessary. In this embodiment, the air outlet 45 is also arranged on the heat preservation cover 4. Figure 12

[0049] In this embodiment, the cutting tool slot 35 is arranged on the sizing roller 31, and the cutting tool 34 is slidingly arranged in the cutting tool slot 35, so that the cutting tool 34 can slide in the cutting tool slot 35. Locking holes are arranged on the cutting tool 34 and the cutting tool slot 35, and the locking holes are used to install locking screws.

[0050] Through the above design scheme, the replaceable cutting tool 34 can adapt to different cutting requirements of different widths. When it is necessary to replace the cutting tool 34 of different lengths, the user can first turn the side of the sizing roller 31 provided with the cutting tool slot 35 upward, then loosen the locking screw, so that the cutting tool 34 can slide in the cutting tool slot 35. After the cutting tool 34 of the required length is replaced, the locking screw is tightened to fix the cutting tool 34.

[0051] In this embodiment, the roller kiln 5 includes a support 50, a protective layer, a heating rod 55, a supporting roller 54 and a crystallization driving member 56. The protective layer is installed on the support 50, and the protective layer is provided with a heating groove 53. A plurality of groups of supporting rollers 54 and heating rods 55 are installed in the heating groove 53, and the heating rod 55 is arranged above the supporting roller 54. The crystallization driving member 56 is installed on the support 50, and the crystallization driving member 56 is used to drive the plurality of groups of supporting rollers 54 to rotate.

[0052] ​In the embodiment, the protective layer comprises a refractory brick layer 51 and a refractory cotton layer 52, the refractory cotton layer 52 is outside the refractory brick layer 51, the refractory brick layer 51 is provided with a support seat 57, both ends of the support roller 54 penetrate through and extend out of the support seat 57, the support seat 57 is used for the support roller 54 to penetrate through, and the support seat 57 is used for supporting the refractory brick layer 51.

[0053] In the embodiment, the support roller 54 is provided with a ball bearing on both sides, the support frame 50 is provided with a support seat 500 on both sides, and the support roller 54 is installed on the support seat 500 through the ball bearing; the support roller 54 is further provided with a helical gear, the support seat 500 is provided with a gear roller, the gear on the gear roller is engaged with the helical gear, and the crystallization driving piece 56 drives the support roller 54 to rotate through the gear roller and the helical gear.

[0054] In the embodiment, the upper cutting surface of the support roller 54 and the upper surface of the shaping plate 21 are in the same plane; at least six groups of heating rods 55 and forty support rollers 54 are arranged in the heating groove 53, and the support rollers 54 and the heating rods 55 are uniformly arranged in the heating groove 53.

[0055] Through the above design scheme, the six groups of heating rods 55 uniformly distributed in the heating groove 53 can maintain the temperature in the heating groove 53 at 800 DEG C uniformly, so that the crystallization process is more smooth; and the support roller 54 in the heating groove 53 can provide support for the blocky sodium disilicate in the crystallization process, so that the deformation of the raw material plate is avoided.

[0056] Compared with the prior art, the molten raw material output after the mixed raw material is sintered by the sintering furnace 1 flows onto the shaping plate 21, the protrusions 33 on the shaping roller 31 can leave holes on the molten raw material and push the raw material to move on the shaping plate 21, under the action of the limiting strips 22 on the two sides, the molten raw material will be extruded into a thin plate shape; when the shaping roller 31 rotates to a certain angle, the cutting tool 34 cuts the thin plate, and the cut thin plate is driven to continue to move on the shaping plate 21 by the driving roller 32, when passing through the heat preservation cover 4 and the roller kiln 5, the thin plate raw material will be crystallized in a certain temperature, and the sheet-shaped sodium disilicate is obtained after crystallization and cooling. The user can directly use the sheet-shaped sodium disilicate according to the use requirement, or can use the sheet-shaped sodium disilicate to obtain the powder-shaped sodium disilicate with a suitable particle size by crushing.

[0057] In the case of no conflict, the above-mentioned embodiments and the features in the embodiments can be combined with each other.

[0058] It should be explained finally that the above embodiment is only used to illustrate the technical scheme of the utility model, and is not the limit of the protection scope of the utility model, although the utility model is explained in detail with reference to the preferred embodiment, the ordinary skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently, and does not deviate from the essence and scope of the technical scheme of the utility model.

Claims

1. An apparatus for the preparation of layered sodium disilicate, characterized in that: The machine frame (2) is provided with a sintering furnace (1), a press (3), a heat preservation cover (4) and a roller kiln (5) connected in sequence, the sintering furnace (1) is used for melting raw materials, the press (3) is used for pressing the molten raw materials into blocks, the heat preservation cover (4) is used for heat insulation, and the roller kiln (5) is used for temperature control crystallization of the block-shaped raw materials. The press (3) and the heat preservation cover (4) are arranged on the machine frame (2), the press (3) comprises a roller driving part (30), a shaping roller (31) and a driving roller (32), the machine frame (2) is provided with a heat preservation seat (20), the heat preservation seat (20) is provided with a shaping plate (21), the shaping plate (21) is provided with an adjustable limiting strip (22), the shaping roller (31) and the driving roller (32) are arranged on the heat preservation seat (20) through a roller seat (23), the roller driving part (30) is used for driving the shaping roller (31) and the driving roller (32) to rotate, the shaping roller (31) is provided with a cutting tool (34), the cutting tool (34) is used for cutting off the molten raw materials, and a plurality of protrusions (33) are uniformly arranged on the shaping roller (31) and the driving roller (32), and the protrusions (33) are used for driving the molten raw materials to slide on the shaping plate (21).

2. A layered sodium disilicate preparation apparatus according to claim 1, characterized in that: A plurality of heat preservation covers (4) are arranged on the heat preservation seat (20), each group of heat preservation covers (4) is provided with a group of driving rollers (32), the heat preservation cover (4) comprises a heat preservation inner cover (40) and a protective outer cover (41), the heat preservation inner cover (40) is arranged on the shaping plate (21), the heat preservation inner cover (40) is provided with the driving roller (32), and the protective outer cover (41) is arranged outside the heat preservation inner cover (40); the heat preservation inner cover (40) and the protective outer cover (41) are provided with handles (42), and the top of the heat preservation inner cover (40) and the protective outer cover (41) is provided with an air outlet (45).

3. A layered sodium disilicate preparation apparatus according to claim 2, characterised in that: A plurality of limiting seats (210) are arranged on the shaping plate (21), the heat preservation inner cover (40) is provided with a limiting clamping protrusion (43), the limiting clamping protrusion (43) is matched with the limiting seat (210), the heat preservation seat (20) is provided with a limiting block (200), the protective outer cover (41) is provided with a limiting groove (44), and the limiting block (200) is matched with the limiting groove (44).

4. The apparatus for preparing layered sodium disilicate according to claim 1, wherein: The shaping roller (31) is provided with a tool groove (35), and the cutting tool (34) is arranged in the tool groove (35); the cutting tool (34) and the tool groove (35) are provided with locking holes, and the locking holes are used for mounting locking screws.

5. The apparatus for preparing layered sodium disilicate according to claim 1, wherein: The roller kiln (5) comprises a support (50), a protective layer, a heating rod (55), a supporting roller (54) and a crystallization driving part (56), the protective layer is arranged on the support (50), the protective layer is provided with a heating groove (53), a plurality of supporting rollers (54) and heating rods (55) are arranged in the heating groove (53), and the heating rod (55) is arranged above the supporting roller (54); the crystallization driving part (56) is arranged on the support (50), and the crystallization driving part (56) is used for driving the plurality of supporting rollers (54) to rotate.

6. A layered sodium disilicate preparation apparatus according to claim 5, characterized in that: The protective layer comprises a refractory brick layer (51) and a refractory cotton layer (52), the refractory cotton layer (52) is outside the refractory brick layer (51), the refractory brick layer (51) is provided with a support seat (57), both ends of the support roller (54) penetrate through and extend out of the support seat (57), and the support seat (57) is used for supporting the refractory brick layer (51).

7. A layered sodium disilicate preparation apparatus according to claim 5, characterized in that: Both sides of the support roller (54) are provided with ball bearings, both sides of the support frame (50) are provided with support seats (500), and the support roller (54) is installed on the support seats (500) through the ball bearings; the support roller (54) is further provided with a helical gear, the support seats (500) are provided with gear rollers, gears on the gear rollers are engaged with the helical gear, and the crystallization driving element (56) drives the support roller (54) to rotate through the gear rollers and the helical gear.

8. A layered sodium disilicate preparation apparatus according to claim 5, characterized in that: The upper section of the support roller (54) is in the same plane as the upper surface of the shaping plate (21); the heating groove (53) is provided with at least six groups of heating rods (55) and forty support rollers (54), and the support rollers (54) and the heating rods (55) are uniformly installed in the heating groove (53).

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