Extruder for semi-dry method gypsum formula test
By designing the semi -dry gypsum formula test extrusion machine, using the combination of positive and reverse feed screws to solve the problem of high cost and inefficient problems caused by the huge volume of gypsum squeezing equipment. Improvement.
Patent Information
- Application Number
- CN202411541906.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-01-28
AI Technical Summary
The gypsum semi-dry extrusion equipment is huge in size, which leads to the need to use a large amount of raw materials and a long cycle during formulation debugging, resulting in high cost and low efficiency.
A semi -dry gypsum formula test extrusion machine is designed, including racks, tube and extruded drivers. It is driven by the combination of positive and reverse rotation screws to achieve efficient extrusion of water paste mixture.
By simulating the actual operating conditions, the amount of the auxiliary with less raw materials can be used to achieve the best material adaptation, saving raw materials, and improving the deployment efficiency.
Smart Images
Figure CN119369508A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of extrusion equipment, and in particular relates to a semi-dry gypsum formula test extruder. Background Art
[0002] Currently, most gypsum building materials are manufactured by the casting method, and the water-to-paste ratio is relatively large. The reaction of hemihydrate gypsum with water to produce dihydrate gypsum only requires 18% of the total weight of hemihydrate gypsum, while the water-to-paste ratio of the casting method is currently above 45%, which results in a large amount of free water and attached water in the newly made casting gypsum products, which require a long time of drying and drying. The water-to-paste ratio of the semi-dry method is below 30%, which reduces the drying and drying time and the use of a large number of storage yards. The free water and attached water quickly reach an absolutely dry state after medium-temperature drying and directly enter the sales link.
[0003] The semi-dry gypsum extrusion equipment is huge in size. When debugging the formula, a large amount of raw materials is required and the cycle is long, which leads to high formula debugging costs and low efficiency. Summary of the invention
[0004] The purpose of the present invention is to provide a semi-dry gypsum formula test extruder to solve the problem that the gypsum semi-dry extrusion equipment is huge in size, a large amount of raw materials are needed and the cycle is long when the formula is debugged, resulting in high formula debugging cost and low efficiency.
[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a semi-dry gypsum formula test extruder comprises a frame, a barrel and an extrusion drive device mounted on the frame, a feed port is provided on the upper side of the barrel, and the extrusion drive device and a discharge port are respectively provided on both sides of the barrel in the horizontal direction, and the discharge port is connected to a forming die; the feed port is used to add a water-paste mixture into the barrel; the extrusion drive device comprises a drive assembly, a forward-rotating feeding screw and a reverse-rotating feeding screw, the forward-rotating feeding screw and the reverse-rotating feeding screw are arranged side by side and rotatably connected in the barrel, and the forward-rotating feeding screw The length direction of the rod and the counter-rotating feed screw is the feeding direction of the barrel; the rotating assembly is used to drive the forward rotating feed screw and the counter-rotating feed screw to rotate in opposite directions; the rotating assembly includes a driving member, a first gear, a second gear and a supporting assembly; the supporting assembly is installed on the frame, and the supporting assembly is used to support the side of the forward rotating feed screw and the counter-rotating feed screw extending out of the barrel, the forward rotating feed screw and the counter-rotating feed screw are respectively fixed to the first gear and the second gear, the first gear and the second gear are meshed, and the driving member is used to drive the first gear or the second gear to rotate.
[0006] Furthermore, the support assembly includes an upper support seat and a lower support seat, the lower support seat is fixed on the frame, and the upper support seat is fixed above the lower support seat; the lower side of the upper support seat is provided with two upper arc holes corresponding to the forward rotating feeding screw and the reverse rotating feeding screw respectively, and the upper side of the lower support seat is provided with two lower arc holes corresponding to the forward rotating feeding screw and the reverse rotating feeding screw respectively, and the upper arc holes and the lower arc holes form circular holes for the forward rotating feeding screw and the reverse rotating feeding screw to rotate.
[0007] Furthermore, bearings are respectively installed in the two circular holes, and the inner rings of the two bearings are respectively fixed to the forward-rotating feeding screw and the reverse-rotating feeding screw.
[0008] Furthermore, a shield is installed on the frame, and the shield is used to cover the first gear and the second gear.
[0009] Furthermore, an electric box is installed at the bottom of the frame, and the electric box is connected to the driving member.
[0010] Furthermore, the feed port is connected to a hopper, and the hopper has a structure that is larger at the top and smaller at the bottom.
[0011] Furthermore, the surfaces of the forward-rotating feeding screw and the reverse-rotating feeding screw are plated with a chrome coating.
[0012] Furthermore, a ground plate is provided at the bottom of the frame, and the ground plate is fixed to the ground.
[0013] Furthermore, the circular hole is a trapezoidal hole, the small diameter hole of the circular hole can pass the forward rotating feed screw or the reverse rotating feed screw, and the large diameter hole of the circular hole is used to install the bearing; the large diameter hole of the circular hole is provided with an upper pressure ring and a lower pressure ring, and the upper pressure ring and the lower pressure ring are used to press and fix the bearing in the circular hole; the upper pressure ring and the lower pressure ring both include a pressing section and a fixing section, and the pressing section and the fixing section are both provided with arc pressure holes, and the arc pressure holes of the upper pressure ring and the lower pressure ring are opposite to and form a through hole for passing the forward rotating feed screw or the reverse rotating feed screw; the pressing section can extend into the large diameter hole of the circular hole and press the bearing against the end face of the large diameter end; the fixing sections of the upper pressure ring and the lower pressure ring are located outside the circular hole and are respectively connected to the support upper seat and the support lower seat.
[0014] Furthermore, the barrel or hopper is connected with a consistency measuring instrument.
[0015] The working principle of this technical solution is that the water-paste mixture with additives is injected into the hopper after being fully stirred and then enters the barrel, and is extruded through the forward-rotating feeding screw and the reverse-rotating feeding screw. The water-paste mixture extruded from the barrel outlet enters the molding die for molding.
[0016] The beneficial effect of the technical solution is that the extruder in the technical solution is used to simulate actual working conditions, and the amount of auxiliary agent is adjusted with less raw materials, so as to achieve the best material adaptation, thereby saving raw materials and improving the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a semi-dry gypsum formulation test extruder of the present invention;
[0018] Figure 2 for Figure 1 The main view of
[0019] Figure 3 for Figure 1 Left view of
[0020] Figure 4 for Figure 1 Right view of;
[0021] Figure 5 for Figure 1 A top view of
[0022] Figure 6 It is a schematic diagram of the structure of the rack;
[0023] Figure 7 It is a schematic diagram of the structure of the barrel;
[0024] Figure 8 This is the front view of the forward-rotating feeding screw;
[0025] Fig. 9 for Figure 8 It is a top view;
[0026] Fig.10 It is a schematic diagram of the structure of the counter-rotating feeding screw;
[0027] Fig.11 A schematic diagram of the structure supporting the upper seat;
[0028] Fig.12 A schematic diagram of the structure supporting the lower seat;
[0029] Fig.13 It is a schematic diagram of the structure of the upper pressure ring and the lower pressure ring;
[0030] Fig.14 for Fig.13 The main view of
[0031] Fig.15 for Fig.13 Side view of. DETAILED DESCRIPTION
[0032] The following is further described in detail through specific implementation methods:
[0033] The figure marks in the drawings of the specification include: frame 1, electrical box 2, drive part 3, coupling 4, barrel 5, hopper 6, forward rotating feed screw 7, reverse rotating feed screw 8, bearing 9, support lower seat 10, shield 11, first gear 12, second gear 13, anchor plate 14, discharge port 15, support upper seat 16, upper arc hole 17, lower arc hole 18, small diameter hole 19, large diameter hole 20, upper pressure ring 21, lower pressure ring 22, arc pressure hole 23, clamping section 24, fixing section 25, feed port 26, drive part mounting plate 27, barrel mounting plate 28.
[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0035] The embodiment is basically as shown in the attached Figure 1-15 As shown: Semi-dry gypsum formulation test extruder, such as Figure 1-6 As shown, the machine comprises a frame 1, a barrel 5 and an extrusion drive device mounted on the frame 1, and a base plate 14 is provided at the bottom of the frame 1, and the base plate 14 is fixed to the ground. The frame 1 is provided with a barrel mounting plate 28 for mounting the barrel 5, as shown in FIG. Figure 7 As shown, a feed port 26 is provided on the upper side of the barrel 5, and a hopper 6 is connected to the feed port 26, and the hopper 6 has a structure of being larger at the top and smaller at the bottom. A consistency measuring instrument is connected to the barrel 5 or the hopper 6. An extrusion drive device and a discharge port 15 are respectively provided on both sides of the barrel 5 in the horizontal direction, and the discharge port 15 is connected to the molding die. The feed port 26 is used to add the water paste mixture into the barrel 5.
[0036] The extrusion drive device includes a drive assembly, a forward-rotating feed screw 7 and a reverse-rotating feed screw 8. Figure 8 , 9As shown in Figures 10, the surfaces of the forward-rotating feeding screw 7 and the reverse-rotating feeding screw 8 are plated with a chrome coating. The forward-rotating feeding screw 7 and the reverse-rotating feeding screw 8 are arranged side by side and are rotatably connected in the barrel 5. The length direction of the forward-rotating feeding screw 7 and the reverse-rotating feeding screw 8 is the feeding direction of the barrel 5. The rotating assembly is used to drive the forward-rotating feeding screw 7 and the reverse-rotating feeding screw 8 to rotate in opposite directions; the rotating assembly includes a driving member 3, a first gear 12, a second gear 13 and a supporting assembly; the forward-rotating feeding screw 7 and the reverse-rotating feeding screw 8 are respectively fixed to the first gear 12 and the second gear 13, the first gear 12 and the second gear 13 are meshed, the driving member 3 is used to drive the first gear 12 or the second gear 13 to rotate, and in this embodiment, the driving end of the driving member 3 is connected to the forward-rotating feeding screw 7 through a coupling 4. An electric box 2 is installed at the bottom of the frame 1, and the electric box 2 is connected to the driving member 3. A driving member mounting plate 27 for mounting the driving member 3 is provided on the frame 1. The driving member 3 adopts a driving motor. A shield 11 is installed on the frame 1, and the shield 11 is used to cover the first gear 12 and the second gear 13.
[0037] The support assembly is mounted on the frame 1, and is used to support the forward-rotating feed screw 7 and the reverse-rotating feed screw 8 extending out of the barrel 5. The support assembly includes an upper support seat 16 and a lower support seat 10. The lower support seat 10 is fixed on the frame 1, and the upper support seat 16 is fixed above the lower support seat 10. Fig.11 , 12 As shown, the lower side of the support upper seat 16 is provided with two upper arc holes 17 corresponding to the forward-rotating feed screw 7 and the reverse-rotating feed screw 8 respectively, and the upper side of the support lower seat 10 is provided with two lower arc holes 18 corresponding to the forward-rotating feed screw 7 and the reverse-rotating feed screw 8 respectively. The upper arc holes 17 and the lower arc holes 18 form circular holes for the forward-rotating feed screw 7 and the reverse-rotating feed screw 8 to rotate. The circular holes are trapezoidal holes, and the small-diameter holes 19 of the circular holes can pass the forward-rotating feed screw 7 or the reverse-rotating feed screw 8. The large-diameter holes 20 of the circular holes are used to install the bearings 9, and the inner rings of the two bearings 9 are fixed to the forward-rotating feed screw 7 and the reverse-rotating feed screw 8 respectively. An upper pressure ring 21 and a lower pressure ring 22 are provided in the large-diameter holes 20 of the circular holes, and the upper pressure ring 21 and the lower pressure ring 22 are used to press and fix the bearings 9 in the circular holes. As shown Figure 13-15 As shown, the upper pressing ring 21 and the lower pressing ring 22 both include a clamping section 24 and a fixing section 25, and the clamping section 24 and the fixing section 25 are both provided with arc pressing holes 23, and the arc pressing holes 23 of the upper pressing ring 21 and the lower pressing ring 22 are directly opposite to and form a through hole for passing the forward-rotating feeding screw 7 or the reverse-rotating feeding screw 8; the clamping section 24 can extend into the large-diameter hole 20 of the circular hole and clamp the bearing 9 on the end surface of the large-diameter end; the fixing sections 25 of the upper pressing ring 21 and the lower pressing ring 22 are located outside the circular hole and are respectively connected to the support upper seat 16 and the support lower seat 10 by bolts. The upper pressing ring 21 and the lower pressing ring 22 are integrally processed and then cut from the middle.
[0038] In this solution, the volume of the entire extruder used for the preparation test is smaller than the volume of the extruder used for production, and the capacity of the barrel 5 is also much smaller than the capacity of the extruder used for production.
[0039] The specific implementation process is as follows:
[0040] The water paste mixture with additives is injected into the hopper 6 after being fully stirred and then enters the barrel 5, and is extruded through the forward-rotating feeding screw 7 and the reverse-rotating feeding screw 8. The water paste mixture extruded from the discharge port 15 of the barrel 5 enters the molding die for molding. The extruder is used to simulate the actual working conditions, and the amount of additives is adjusted with less raw materials to achieve the best material adaptation, thereby saving raw materials and improving the mixing efficiency.
[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0042] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. Semi-dry gypsum formula test extruder, characterized by: The invention comprises a frame (1), a barrel (5) and an extrusion drive device mounted on the frame (1); a feed port (26) is provided on the upper side of the barrel (5); the extrusion drive device and a discharge port (15) are respectively provided on both sides of the barrel (5) in the horizontal direction; the discharge port (15) is connected to a molding die; the feed port (26) is used to add a water-paste mixture into the barrel (5); the extrusion drive device comprises a drive assembly, a forward-rotating feeding screw (7) and a reverse-rotating feeding screw (8); the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) are arranged side by side and are rotatably connected in the barrel (5); the length direction of the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) is the feeding direction of the barrel (5); The rotating assembly is used to drive the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) to rotate in opposite directions; the rotating assembly comprises a driving member (3), a first gear (12), a second gear (13) and a supporting member; the supporting member is mounted on the frame (1), and is used to support the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) extending out of the barrel (5) on one side; the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) are respectively fixed to the first gear (12) and the second gear (13); the first gear (12) and the second gear (13) are meshed; the driving member (3) is used to drive the first gear (12) or the second gear (13) to rotate.
2. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: The support assembly comprises an upper support seat (16) and a lower support seat (10), wherein the lower support seat (10) is fixed on the frame (1), and the upper support seat (16) is fixed above the lower support seat (10); the lower side of the upper support seat (16) is provided with two upper arc holes (17) corresponding to the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8), respectively; the upper side of the lower support seat (10) is provided with two lower arc holes (18) corresponding to the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8), respectively; the upper arc holes (17) and the lower arc holes (18) form circular holes for the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) to rotate.
3. The semi-dry gypsum formulation test extruder according to claim 2, characterized in that: Bearings (9) are respectively installed in the two circular holes, and the inner rings of the two bearings (9) are respectively fixed to the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8).
4. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: A protective cover (11) is installed on the frame (1), and the protective cover (11) is used to cover the first gear (12) and the second gear (13).
5. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: An electric box (2) is installed at the bottom of the frame (1), and the electric box (2) is connected to the driving member (3).
6. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: The feed port (26) is connected to a hopper (6), and the hopper (6) has a structure that is larger at the top and smaller at the bottom.
7. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: The surfaces of the forward-rotating feeding screw (7) and the reverse-rotating feeding screw (8) are plated with a chrome coating.
8. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: A ground plate (14) is provided at the bottom of the frame (1), and the ground plate (14) is fixed to the ground.
9. The semi-dry gypsum formulation test extruder according to claim 3, characterized in that: The circular hole is a trapezoidal hole, the small diameter hole (19) of the circular hole can pass the forward-rotating feeding screw (7) or the reverse-rotating feeding screw (8), and the large diameter hole (20) of the circular hole is used to install the bearing (9); the large diameter hole (20) of the circular hole is provided with an upper pressing ring (21) and a lower pressing ring (22), and the upper pressing ring (21) and the lower pressing ring (22) are used to press and fix the bearing (9) in the circular hole; the upper pressing ring (21) and the lower pressing ring (22) both include a pressing section (24) and a fixing section (25), and the pressing section (24) and The fixing section (25) is provided with an arc pressure hole (23), and the arc pressure holes (23) of the upper pressure ring (21) and the lower pressure ring (22) are opposite to and form a through hole for passing the forward-rotating feeding screw (7) or the reverse-rotating feeding screw (8); the clamping section (24) can extend into the large-diameter hole (20) of the circular hole and clamp the bearing (9) on the end surface of the large-diameter end; the fixing sections (25) of the upper pressure ring (21) and the lower pressure ring (22) are located outside the circular hole and are respectively connected to the support upper seat (16) and the support lower seat (10).
10. The semi-dry gypsum formulation test extruder according to claim 1, characterized in that: The barrel (5) or the hopper (6) is connected with a consistency measuring instrument.