CN221717286U - Double-spiral wallboard vacuum extruder - Google Patents

Abstract

The utility model provides a double-screw wall panel vacuum extruder, which relates to the technical field of building material equipment. The extruder comprises an upper vacuum stirring part and a lower stirring extrusion part, and a vacuum baffle is arranged between the upper vacuum stirring part and the lower stirring extrusion part; the upper vacuum stirring part is connected with the lower stirring extrusion part by bolts and is installed on the same base, wherein: the structure of the upper vacuum stirring part comprises: a variable frequency speed regulating motor reducer, a fixed box body, a split stirring box body assembly, a stirring main shaft, a vacuum chamber assembly, a vacuum grate assembly, and a rotating support assembly; the utility model has a reasonable structural design, and the upper and lower levels are driven by their own motors to uniformly cooperate to complete the stirring and extrusion of raw materials, cooperate with the rear-end automatic cutting and milling to realize the high-efficiency production of the plate, and are directly operated through the control device, which is simple and convenient, saves time and labor, and greatly improves the work efficiency.

Description

Double spiral wall panel vacuum extruder

Technical Field

The utility model relates to the technical field of building material equipment, and specifically provides a double-screw wallboard vacuum extruder.

Background Art

With the rapid development of industrial manufacturing, the amount of industrial solid waste generated has also expanded rapidly. In the national efforts to save energy and arable land resources and promote green industrial development, we will vigorously promote the comprehensive utilization of industrial solid waste. Focusing on high-value, large-scale and intensive utilization, we will promote a number of currently applicable technologies and equipment around industrial solid wastes such as tailings, waste rock, coal gangue, fly ash, smelting slag, smelting dust mud, red mud, industrial by-product gypsum, and chemical waste residues, and promote deep resource utilization.

Especially in the context of the industry's comprehensive "ban on solid materials", vigorously promoting the innovation of wall materials has prompted more and more brick and tile companies to vigorously develop new wall materials that save energy, save land, and utilize waste, and gradually replace traditional soft mud materials. They use coal gangue, shale, slag, river silt and other solid waste as raw materials for products, which poses a challenge to traditional production processes and equipment.

At present, the products extruded by single-shaft screw extruders in the industry are small in specifications, diverse in variety, and have low product uniformity, which creates difficulties for prefabricated buildings after extrusion molding.

Utility Model Content

According to the physical and chemical properties of existing solid waste, the quality requirements for prefabricated building products, the process requirements of equipment, and the manufacturing and installation requirements of mechanical equipment, a high-efficiency, high-quality vacuum wall panel extruder suitable for assembly has been designed based on the existing technology.

The technical task of the utility model is to provide a double-screw wallboard vacuum extruder in view of the above-mentioned problems.

A double-screw wall panel vacuum extruder, the extruder comprises an upper vacuum stirring part and a lower stirring extrusion part, a vacuum baffle is arranged between the upper vacuum stirring part and the lower stirring extrusion part;

The upper vacuum stirring part is connected to the lower stirring extrusion part by bolts and is installed on the same base, wherein:

The structure of the upper vacuum stirring part includes: a variable frequency speed regulating motor reducer, a fixed box, a split stirring box assembly, a stirring spindle, a vacuum chamber assembly, a vacuum grate assembly, and a rotating support assembly;

The variable frequency speed regulating motor reducer is directly connected to the stirring main shaft;

The components of the lower-level stirring and extruding part are a power unit, a speed reduction unit, an extrusion unit and an extrusion die unit.

Furthermore, the structure of the stirring main shaft includes a stirring shaft, a thrust spherical roller bearing, a spherical roller bearing, a bearing chamber, stirring blades I and II, and an extrusion screw;

The extruded spiral includes a left spiral and a right spiral.

Furthermore, the structure of the split mixing box assembly includes an ordinary carbon steel outer box, a corrosion-resistant inner lining plate and a spoiler rod.

Furthermore, the structure of the power unit includes a permanent magnet synchronous motor, a driving pulley, a banding belt and a shield;

The structure of the reduction unit includes a pneumatic clutch assembly and a double helical planetary reducer;

The structure of the extrusion unit includes a lower material receiving box, a split mud cylinder assembly, and a mud basin assembly.

Furthermore, the upper part of the vacuum chamber assembly is connected to the fixed box, and the lower part is connected to the lower material receiving box, forming a vacuum section with the split mixing box assembly and the split mud cylinder assembly;

The structure of the vacuum chamber assembly includes a vacuum box body, an inspection door assembly, two high and low observation windows, a vacuum pump connection assembly, and a vacuum gauge.

Furthermore, the structure of the vacuum grate assembly includes: a fixed support seat, an adjustable support seat, and a grate plate, which is arranged between the upper vacuum stirring part and the lower stirring and extruding part.

Furthermore, the rotating support assembly mainly functions to support the vacuum grate assembly, and its main components include a self-lubricating copper sleeve, a rotating support I and a rotating support II, and a handheld jack;

Furthermore, the structure of the extruder also includes a hoisting assembly for hoisting the vacuum grate assembly and the upper vacuum stirring part to facilitate the maintenance of the equipment and replacement of wear-resistant parts. Its structure includes a rotating assembly and an intelligent electric hoist.

Furthermore, the structure of the extruder also includes a mud pressing plate assembly.

Compared with the prior art, the double-screw wall panel vacuum extruder of the utility model has the following outstanding beneficial effects:

The utility model has a reasonable structural design. The upper and lower levels are driven by their own motors to cooperate in completing the mixing and extrusion of raw materials. The rear-end automatic cutting and milling can be used to achieve high-efficiency production of plates. It is directly operated through the control device, which is simple and convenient, saves time and effort, and greatly improves work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the extruder of the utility model;

Fig. 2 is a left side view of the extruder of the utility model;

Explanation of the reference numerals: 1. variable frequency speed regulating motor reducer; 2. fixed box; 3. split mixing box assembly; 4. mixing main shaft; 5. vacuum chamber assembly; 6. lower-level receiving box; 7. split mud cylinder assembly; 8. lifting assembly; 9. mud pressing plate assembly; 10. rotating support assembly; 11. dual-axis bearing chamber assembly; 12. double-helix planetary reducer; 13. permanent magnet synchronous motor; 14. pneumatic clutch assembly; 15. machine base; 16. mud basin assembly; 17. extrusion die unit; 21. upper-level vacuum mixing part; 22. lower-level mixing and extrusion part.

DETAILED DESCRIPTION

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 1 and Fig. 2, a double-screw wall panel vacuum extruder, the extruder comprises an upper vacuum stirring part 21 and a lower stirring extrusion part 22, and a vacuum baffle is arranged between the upper vacuum stirring part 21 and the lower stirring extrusion part 22;

The upper vacuum stirring part 21 is connected to the lower stirring extrusion part by bolts and is installed on the same base 15 to facilitate the installation of the equipment, wherein:

The structure of the upper vacuum stirring part includes: a variable frequency speed regulating motor reducer 1, a fixed box 2, a split stirring box assembly 3, a stirring spindle 4, a vacuum chamber assembly 5, a vacuum grate assembly, and a rotating support assembly 10;

The variable frequency speed regulating motor reducer 1 is directly connected to the stirring main shaft 4. This direct connection method reduces power loss and increases transmission efficiency.

The function of the lower-level stirring and extruding part 22 is mainly to stir the raw materials of the upper level, extract excess air, and extrude them through the mud cylinder and the mold to form a high-density, high-vacuum wall panel. Its components include a power unit, a deceleration unit, an extrusion unit and an extrusion mold unit 17.

The structure of the stirring main shaft 4 includes a stirring shaft, a thrust spherical roller bearing, a spherical roller bearing, a bearing chamber, stirring blades I and II, and an extrusion screw;

The extruded spiral includes a left spiral and a right spiral.

The structure of the split mixing box assembly 3 includes an ordinary carbon steel outer box, a corrosion-resistant inner lining plate and a disturbance rod.

The structure of the power unit includes a permanent magnet synchronous motor 13, a driving pulley, a combined belt and a shield;

The structure of the reduction unit includes a pneumatic clutch assembly 14 and a double helical planetary reducer 12;

The structure of the extrusion unit includes a lower material receiving box 6, a split mud cylinder assembly 7, a mud basin assembly 16, etc.;

The vacuum chamber assembly 5 is connected to the fixed box 2 at the top and the lower material receiving box 6 at the bottom. Its main function is to provide space for extracting air from the raw materials and to provide sufficient raw materials for the extrusion of the lower board. It forms a vacuum section with the split mixing box assembly 3 and the split mud cylinder assembly 7, which provides an important guarantee for the density of the board. The structure of the vacuum chamber assembly 5 includes a vacuum box, an inspection door assembly, two high and low observation windows, a vacuum pump connection assembly, and a vacuum gauge.

The structure of the vacuum grate assembly includes: a fixed support seat, an adjustable support seat, and a grate plate;

The main function is to screen the raw materials and prevent the large particles of hard raw materials from entering the lower level, thus providing a basis for forming a vacuum section.

The main function of the rotating support assembly 10 is to support the vacuum grate assembly, and to facilitate the cleaning of raw materials, maintenance, and replacement of wear-resistant parts. Its main components include a self-lubricating copper sleeve, a rotating support I and a rotating support II, and a handheld jack;

The structure of the extruder also includes a hoisting assembly 8, which is used to hoist the vacuum grate assembly and the upper vacuum stirring part 21 to facilitate the maintenance of the equipment and the replacement of wear-resistant parts. Its structure includes a rotating assembly and an intelligent electric hoist.

The structure of the extruder also includes a mud pressing plate assembly 9. The bulk raw material enters the vacuum chamber. After the bulk raw material is squeezed and dispersed by the mud pressing plate assembly 9, the excess air is extracted by an external rotary vane vacuum pump to maximize the density of the bulk raw material.

The working process of the extruder is as follows

The pre-treated raw materials are conveyed to the upper vacuum stirring part 21 by the conveyor, and are fed to the vacuum baffle for filtering and sealing the vacuum evenly with the same pressure through the stirring main shaft 4 and the double-leaf spiral reamer. The loose raw materials are squeezed into blocks or strips with a preliminary shape. At this time, the block raw materials enter the vacuum chamber. After the block raw materials are squeezed and dispersed by the mud pressing plate assembly, the excess air is extracted by the external rotary vane vacuum pump to maximize the density of the block raw materials.

The lower driving machine is a permanent magnet synchronous motor 13, using a double helical planetary reducer 12, and the start and stop of the lower stirring extruder 22 double helix is controlled by controlling the pneumatic clutch assembly 14 installed on the double helical planetary reducer 12.

After the air source is connected, the bulk raw material that has been vacuumed by the upper stage enters the conveying screw position and is continuously conveyed to the extrusion screw (the lead of the extrusion screw is generally smaller than the lead of the conveying screw and needs to be adjusted according to the characteristics of the raw material). The extrusion screw cooperates with the split mud cylinder assembly 7 to extrude the bulk raw material into a denser and more continuous mud material, and then extrude the required hollow wall panel through the extrusion die unit 17.

The embodiments described above are only preferred specific implementations of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The double-spiral wallboard vacuum extruder is characterized by comprising an upper-stage vacuum stirring part (21) and a lower-stage stirring extrusion part (22), wherein a vacuum baffle is arranged between the upper-stage vacuum stirring part (21) and the lower-stage stirring extrusion part (22);

The upper vacuum stirring part (21) is connected with the lower stirring extrusion part through bolts and is arranged on the same base (15), wherein:

The structure of the upper vacuum stirring part comprises: the variable-frequency speed-regulating motor speed reducer (1), a fixed box body (2), a split stirring box body component (3), a stirring main shaft (4), a vacuum chamber component (5), a vacuum grid plate component and a rotary supporting component (10);

The variable-frequency speed-regulating motor speed reducer (1) is directly connected with the stirring main shaft (4);

The lower stirring extrusion part (22) comprises a power unit, a speed reduction unit, an extrusion unit and an extrusion die unit (17).

2. A twin-screw wallboard vacuum extruder according to claim 1, wherein the structure of the stirring main shaft (4) comprises a stirring shaft, a thrust self-aligning roller bearing, a bearing chamber, stirring blades i and ii, and an extrusion screw;

The extrusion screw includes a left screw and a right screw.

3. A twin screw wallboard vacuum extruder according to claim 1, wherein the structure of the split agitator tank assembly (3) comprises an outer tank of plain carbon steel, a corrosion resistant inner liner and a tamper bar.

4. A double-screw wallboard vacuum extruder according to claim 1, wherein the power unit structure comprises a permanent magnet synchronous motor (13), a drive pulley, a gang belt and a shroud;

The structure of the speed reduction unit comprises a pneumatic clutch assembly (14) and a double-spiral planetary speed reducer (12);

the structure of the extrusion unit comprises a lower-stage material receiving box (6), a split mud cylinder assembly (7) and a mud basin assembly (16).

5. The double-spiral wall plate vacuum extruder according to claim 1, wherein the upper part of the vacuum chamber assembly (5) is connected with a fixed box body (2), the lower part is connected with a lower-stage receiving box (6), and a vacuum section is formed by the vacuum chamber assembly, the split stirring box body assembly (3) and the split mud cylinder assembly (7);

the structure of the vacuum chamber assembly (5) comprises a vacuum box body, an inspection door body assembly, two high-low observation windows, a vacuum pump connecting assembly and a vacuum gauge.

6. The twin screw wallboard vacuum extruder of claim 1, wherein the structure of the vacuum grate assembly comprises: the fixed supporting seat, the adjustable supporting seat and the grate plate are arranged between the upper-stage vacuum stirring part (21) and the lower-stage stirring extrusion part (22).

7. A double-screw wallboard vacuum extruder according to claim 1, wherein the rotary support assembly (10) is mainly used for supporting a vacuum grate assembly, and the rotary support assembly (10) comprises a self-lubricating copper sleeve, a rotary support i, a rotary support ii and a hand-held jack.

8. The double-spiral wallboard vacuum extruder of claim 1, wherein the extruder further comprises a lifting assembly (8) for lifting the vacuum grate assembly and the upper vacuum stirring part (21), and the structure comprises a rotating assembly and an intelligent electric hoist, wherein the wear-resisting parts are convenient to overhaul and replace.

9. A twin-screw wallboard vacuum extruder according to claim 1, wherein the extruder structure further comprises a mud-pressing plate assembly (9).