Lightweight partition board extruder

Abstract

The present invention relates to the field of partition board preparation equipment, and particularly to an extruder for preparing lightweight partition boards using fly ash, which includes a machine body. The machine body is provided with a first extrusion chamber, and the first extrusion chamber is connected to a feed hopper. The first extrusion chamber is provided with a first push plate, and a first grate plate is arranged on the side wall of the first extrusion chamber opposite to the first push plate. The first extrusion chamber communicates with a second extrusion chamber through the first grate plate. The second extrusion chamber is provided with a second push plate, and a second grate plate is arranged on the side wall of the second extrusion chamber opposite to the second push plate. The second extrusion chamber communicates with a third extrusion chamber through the second grate plate. The third extrusion chamber is provided with a third push plate, and a discharge channel is arranged at the position opposite to the third push plate. A telescopic stop block is arranged at the discharge channel, and a forming die is arranged at the discharge end of the discharge channel. The first push plate, the second push plate, the third push plate, and the telescopic stop block are all connected to driving oil cylinders, which can make the fly ash and water combine evenly, occupy a small area, and have high working stability.

Description

Technical Field

[0001] The present invention relates to the field of partition board preparation equipment, and particularly relates to a lightweight partition board extruder. Background Art

[0002] Fly ash is the fine ash captured from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. The main oxide components of fly ash in thermal power plants in China are: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2, etc. With the development of the power industry, the discharge of fly ash from coal-fired power plants increases year by year, becoming one of the industrial waste residues with a large discharge in China at present. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if discharged into the water system, it will cause river siltation, and the toxic chemical substances in it will also harm the human body and organisms. However, fly ash can be resourcefully utilized, such as being used as a admixture in concrete, etc.

[0003] In the prior art, there is equipment for preparing wallboards with fly ash as a wallboard raw material, including a composite extrusion system of a twin-screw extrusion system and a single-screw extrusion system. The twin-screw extrusion system includes a twin-screw extruder, a forced feeding screw, a solid raw material hopper, a metering pump, and a liquid barrel; the single-screw extrusion molding system includes a single-screw extruder and a wallboard mold, which can mix fly ash with other materials to achieve continuous processing. However, in the process of using fly ash to make wallboards, fly ash has poor water absorption, and it is easy to have uneven combination with water during the mixing process, thereby causing internal injuries in the extruded wallboards and affecting the product quality. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a lightweight partition board extruder that can make fly ash combine evenly with water, has a small floor area, and high working stability.

[0005] The present invention is realized through the following technical solutions: A lightweight partition board extruder includes a machine body. The machine body is provided with a first extrusion chamber, the first extrusion chamber is connected with a feeding hopper, the first extrusion chamber is provided with a first push plate, the side wall of the first extrusion chamber opposite to the first push plate is provided with a first sieve plate, the first extrusion chamber communicates with a second extrusion chamber through the first sieve plate, the second extrusion chamber is provided with a second push plate, the side wall of the second extrusion chamber opposite to the second push plate is provided with a second sieve plate, the second extrusion chamber communicates with a third extrusion chamber through the second sieve plate, the third extrusion chamber is provided with a third push plate, a discharge channel is provided at the position opposite to the third push plate in the third extrusion chamber, a telescopic stop block is provided at the discharge end of the discharge channel, a forming mold is provided at the discharge end of the discharge channel, and the first push plate, the second push plate, the third push plate, and the telescopic stop block are all connected with driving oil cylinders.

[0006] Further, the first extrusion chamber cavity is rectangular parallelepiped-shaped, the first extrusion chamber is arranged horizontally, and the third push plate is arranged at one end of the first extrusion chamber.

[0007] Further, the second extrusion chamber cavity is rectangular parallelepiped-shaped, the second extrusion chamber is arranged vertically, the second push plate is arranged at the upper end of the second extrusion chamber, and a baffle plate matching the first grate plate is arranged on the side wall of the second push plate.

[0008] Further, the second grate plate is a telescopic grate plate, the second grate plate is connected with a telescopic driving device, the second grate plate is connected with a baffle plate matching the second extrusion chamber, and a guiding opening matching the second grate plate is arranged at the lower end of the second extrusion chamber.

[0009] Further, the third extrusion chamber cavity is rectangular parallelepiped-shaped, and the third extrusion chamber is parallel to the first extrusion chamber.

[0010] Further, there are two driving oil cylinders for the telescopic stop block, the piston rods of the two driving oil cylinders are parallel to each other, a connecting plate is fixed between the piston rods of the two driving oil cylinders, and a guiding plate for guiding the piston rods of the two driving oil cylinders is arranged on the machine body.

[0011] Further, the forming die includes a die box and a die core. The die box includes an upper end cover and a lower end cover buckled together, a die cavity is formed between the upper end cover and the lower end cover, the die core includes an orifice plate arranged at the inlet of the die cavity, a forming pressing plate is arranged at the outlet of the die cavity, and the forming pressing plate includes two side plates and two top plates.

[0012] Further, a guiding channel is arranged between the orifice plate and the forming pressing plate, and the area of the feeding end of the guiding channel is larger than that of the discharging end.

[0013] Further, a plurality of forming columns are arranged in rows on the orifice plate, and the forming columns extend to the outlet of the die cavity.

[0014] The beneficial effects of the present invention are as follows: For the lightweight partition board extruder, fly ash mixture is put into the first extrusion chamber through the feed inlet. The first push plate acts to extrude the material, further mixing water and fly ash. The material enters the second extrusion chamber through the first sieve plate. Through the dispersion of the first sieve plate, water and fly ash are further mixed. After being extruded and dispersed by the second extrusion chamber and the third extrusion chamber, water and fly ash can be fully and evenly mixed, and at the same time, the density of the mixed material can be increased. Through the forming die for forming, a lightweight partition board with uniform texture and high density can be obtained. The cavities of the first extrusion chamber, the second extrusion chamber, and the third extrusion chamber are all cuboid-shaped, with high structural stability and convenient manufacturing. The first extrusion chamber and the third extrusion chamber are horizontally arranged, and the second extrusion chamber is vertically arranged, enabling the first extrusion chamber, the second extrusion chamber, and the third extrusion chamber to be located on the same vertical plane, with a small floor area. The setting of the shielding plate, the baffle plate, and the stop block can cooperate with the corresponding push plate to increase the extrusion pressure, thereby improving the mixing uniformity between fly ash and water. At the same time, it can increase the density of the material and reduce the porosity of the lightweight partition board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of Embodiment 1;

[0016] Figure 2 It is a schematic diagram of the front sectional view of Embodiment 1;

[0017] Figure 3 For Figure 2 It is a schematic diagram of the sectional view in the A direction in

[0018] Figure 4 It is a schematic diagram of the disassembled view of the second extrusion chamber;

[0019] Figure 5 It is a schematic diagram of the left sectional view of the telescopic stop block;

[0020] Figure 6 It is a schematic diagram of the structure of the forming die;

[0021] Figure 7 It is a schematic diagram of the disassembled view of the forming die;

[0022] Figure 8 It is a schematic diagram of the front sectional view of the forming die;

[0023] Figure 9 It is a schematic diagram of the connection relationship between the side pressing plate and the first sieve plate;

[0024] Wherein: 1 - feed hopper, 2 - first extrusion chamber, 201 - first push plate, 202 - first grate plate, 3 - drive oil cylinder, 4 - oil cylinder support, 5 - lifting ring, 6 - second extrusion chamber, 601 - second push plate, 602 - baffle plate, 603 - second grate plate, 604 - retaining plate, 605 - notch, 606 - guiding opening, 607 - side pressing plate, 608 - side groove, 7 - third extrusion chamber, 701 - third push plate, 702 - reinforcing rib, 8 - telescopic stop block, 801 - stop block body, 802 - connecting plate, 803 - guiding plate, 9 - forming die, 901 - upper end cover, 902 - lower end cover, 903 - mounting plate, 904 - positioning pin hole, 905 - side plate, 906 - top plate, 907 - forming column, 908 - perforated plate, 909 - guiding channel. Detailed implementation manners

[0025] In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, the terms "arranged", "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1

[0028] As Figures 1-9As shown, a lightweight partition board pushing machine includes a machine body, which is equipped with a horizontal first extrusion chamber 2, the first extrusion chamber is surrounded by steel plates, the cavity of the first extrusion chamber is a rectangular parallelepiped, the upper end of the feed end of the first extrusion chamber is connected to a feed hopper 1, the feed end of the first extrusion chamber is equipped with a driving cylinder 3 through a cylinder bracket 4, and the end of the piston rod of the driving cylinder is equipped with a first push plate 201, the first push plate and the side wall of the first extrusion chamber are gap-matched, the side wall of the first extrusion chamber opposite to the first push plate is a first grate plate 202, the first extrusion chamber is connected to a vertical second extrusion chamber 6 through the first grate plate, the second extrusion chamber is surrounded by steel plates, the cavity is a rectangular parallelepiped, and the side pressure plate 607 of the second extrusion chamber is processed with side grooves 908 matching the first grate plate, and the two side ends of the first grate plate are clamped in the side grooves for convenient fixing. For fixing and positioning, a downward driving cylinder is installed at the upper end of the second extrusion bin through the cylinder bracket, and a horizontal second push plate 601 is installed at the lower end of the piston rod of the driving cylinder. The second push plate is matched with the gap between the side wall of the second extrusion bin cavity. To ensure working stability, a guide plate is fixed to the side end of the second push plate, and the guide plate corresponding to the first grate plate extends downward to form a baffle 602 matching the first grate plate. A horizontal second grate plate 603 is installed at the lower end of the second extrusion bin, and a driving cylinder is installed on the second grate plate through the cylinder bracket. A baffle 604 is integrally formed at the end of the second grate plate away from the driving cylinder, and a guide opening 606 matching the second grate plate and the baffle is provided at the lower end of the second extrusion bin. For convenience of processing, the guide opening is processed at the lower end of the side pressure plate, and a notch 605 matching the baffle is processed on the side of the second grate plate.

[0029] The second extrusion chamber is connected to the third extrusion chamber 7 through the second grate plate. The cavity of the third extrusion chamber is a rectangular parallelepiped. The third extrusion chamber is parallel to the first extrusion chamber. The third extrusion chamber is located below the first extrusion chamber and the second extrusion chamber, which can effectively reduce the floor space and the overall volume of the extruder. Two horizontal driving cylinders are installed at the end of the third extrusion chamber opposite to the first extrusion chamber through the cylinder bracket. A vertical third push plate 701 is installed at the end of the piston rod of the driving cylinder. The third push plate is matched with the side wall clearance of the third extrusion chamber. There is a discharge channel at the opposite position of the third extrusion chamber and the third push plate, and a telescopic block is installed at the discharge channel. Block 8, specifically, the telescopic block includes a rectangular block body 801, both ends of the block body are gap-matched with the inner wall of the discharge channel, the upper side wall of the discharge channel is processed with a rectangular opening matching with the block body, and a driving cylinder is installed at the rectangular opening on the upper side of the discharge channel through a cylinder bracket. There are two driving cylinders, and the piston rods of the two driving cylinders are parallel to each other. A connecting plate 802 is fixed between the piston rods of the two driving cylinders, and push columns are installed between both ends of the connecting plate and the block body. The two push columns are round steel and parallel to each other. A guide plate 803 for guiding the two push columns is installed on the cylinder bracket.

[0030] The discharging end of the discharging channel is installed with a forming die 9. The forming die includes a die box and a die core. The die box includes an upper end cover 901 and a lower end cover 902 that are buckled together. There are reinforcing ribs on the outer walls of the upper pressing cover and the lower pressing cover. Both the upper pressing cover and the lower pressing cover are formed by casting and then machined, which is convenient for preparation and has high structural strength. A die cavity is formed between the upper end cover and the lower end cover. The die core includes an orifice plate 908 installed at the inlet of the die cavity. An orifice plate installation opening corresponding to the orifice plate is machined at the feeding end of the die box. In this embodiment, the orifice plate is a rectangular plate, and through holes with a square cross-section are machined in rows and columns on the rectangular plate. For the convenience of processing, the orifice plate is formed by casting. A forming pressing plate is installed at the outlet of the die cavity. The inner end of the forming pressing plate extends into the die cavity. The forming pressing plate includes two side plates 905 and two top plates 906. Convex ribs and grooves are respectively machined on the two side plates. Grooves and convex ribs can be respectively formed on the two side surfaces of the lightweight partition board. The cooperation between the convex ribs and the grooves can make the connection between adjacent two lightweight partition boards more neat. For the convenience of production, the lower top plate of the forming pressing plate is integrally formed with the side plates. There is a guiding channel 909 between the orifice plate and the forming pressing plate. The feeding end area of the guiding channel is larger than the discharging end area. The guiding channel is formed by buckling two U-shaped guiding blocks together, which is convenient for processing. The cross-section of the guiding channel is rectangular, which can further extrude the material to make the lightweight partition board dense and uniform in texture.

[0031] A plurality of forming columns 907 are welded and fixed in rows on the orifice plate. The cross-section of the forming column is circular, and the end of the forming column is cylindrical. The forming column extends to the outlet of the die cavity. An installation plate 903 is integrally formed at the installation end of the die box. A positioning pin hole 904 is machined on the end surface of the installation plate. Through the positioning pin hole, it is convenient to position when the forming die is fixed to the machine body. Reinforcing ribs 702 are fixed on the outer walls of the discharging channel and the third extrusion bin. A lifting ring 5 is also installed on the machine body, which is convenient for hoisting.

[0032] The working principle of the lightweight partition board extruder provided by the present invention is as follows: Grind fly ash, cement, gypsum, and rice husks to 15 mesh. After grinding fly ash, cement, gypsum, and rice husks, add water and put them into a mixer for stirring to obtain a mixed material. The weight ratio between gypsum, cement, rice husks, fly ash, and water is 30:20:15:35:30. Put the mixed material into the first extrusion chamber through the feeding hopper. The first push plate acts, and after the mixed extrusion, it is dispersed into the second extrusion chamber through the first screen plate to promote the mixing of water and fly ash. The second screen plate acts to make the second screen plate face the second extrusion chamber. The second push plate acts. During the action of the second push plate, the baffle first blocks the holes of the first screen plate, and then the second push plate continues to push down to extrude the mixed material and disperse it into the third extrusion chamber through the second screen plate to promote the mixing of water and fly ash. The second push plate resets, the second screen plate acts to make the baffle face the second extrusion chamber, the telescopic stop block acts, and the block body blocks the discharge channel. The third push plate acts to increase the pressure on the mixed material, improve the density of the mixed material, and at the same time promote the mixing of water and fly ash. After the driving oil cylinder corresponding to the third push plate extends 5 - 10 cm, it stops acting. The telescopic stop block acts, and the discharge channel is opened. The driving oil cylinder corresponding to the third push plate continues to act to push the mixed material to the molding die, and after extrusion through the molding die, a lightweight partition board blank is obtained. After drying and curing, a finished lightweight partition board is obtained.

[0033] It should be noted that while the third extrusion chamber is working, the first extrusion chamber can act to improve the working continuity and thus achieve continuous production.

[0034] Furthermore, by replacing different molding pressing plates, lightweight partition boards with corresponding cross-sectional shapes can be obtained, with strong adaptability.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightweight partition board extruder, characterized in that: It includes a machine body. The machine body is provided with a first extrusion chamber, the first extrusion chamber is connected with a feeding hopper, the first extrusion chamber is provided with a first push plate, the side wall of the first extrusion chamber opposite to the first push plate is provided with a first grate plate, the first extrusion chamber is communicated with a second extrusion chamber through the first grate plate, the second extrusion chamber is provided with a second push plate, the side wall of the second extrusion chamber opposite to the second push plate is provided with a second grate plate, the second extrusion chamber is communicated with a third extrusion chamber through the second grate plate, the third extrusion chamber is provided with a third push plate, an outlet channel is arranged at the position of the third extrusion chamber opposite to the third push plate, a telescopic stop block is arranged at the outlet end of the outlet channel, a forming die is arranged at the outlet end of the outlet channel, and the first push plate, the second push plate, the third push plate and the telescopic stop block are all connected with driving oil cylinders. The cavity of the first extrusion chamber is cuboid-shaped, the first extrusion chamber is arranged horizontally, and the third push plate is arranged at one end of the first extrusion chamber. The cavity of the second extrusion chamber is cuboid-shaped, the second extrusion chamber is arranged vertically, the second push plate is arranged at the upper end of the second extrusion chamber, and a shielding plate matching the first grate plate is arranged on the side wall of the second push plate. The second grate plate is a telescopic grate plate, the second grate plate is connected with a telescopic driving device, the second grate plate is connected with a baffle plate matching the second extrusion chamber, and a guiding opening matching the second grate plate is arranged at the lower end of the second extrusion chamber. The mixed material is put into the first extrusion chamber through the feeding hopper. The first push plate acts to disperse the mixed material into the second extrusion chamber through the first grate plate after extrusion. The second grate plate acts to make the second grate plate face the second extrusion chamber. The second push plate acts. During the action of the second push plate, the shielding plate first blocks the holes of the first grate plate, and then the second push plate continues to push down to extrude the mixed material and disperse it into the third extrusion chamber through the second grate plate to promote the mixing of water and fly ash. The second push plate resets, the second grate plate acts to make the baffle plate face the second extrusion chamber, the telescopic stop block acts, the block body blocks the outlet channel, the third push plate acts to increase the pressure on the mixed material. After the driving oil cylinder corresponding to the third push plate extends 5 - 10 cm, it stops acting. The telescopic stop block acts, the outlet channel is opened, and the driving oil cylinder corresponding to the third push plate continues to act to push the mixed material to the forming die and extrude it through the forming die.

2. The lightweight partition board extruder according to claim 1, characterized in that: The cavity of the third extrusion chamber is cuboid-shaped, and the third extrusion chamber is parallel to the first extrusion chamber.

3. The lightweight partition board extruder according to claim 1, characterized in that: The telescopic stop block includes a stop block body. Both ends of the stop block body are in clearance fit with the inner side walls of the discharge channel. An opening matching the stop block body is machined on the upper side wall of the discharge channel. A driving oil cylinder is installed at the upper side of the discharge channel at the rectangular opening through an oil cylinder bracket. There are two driving oil cylinders. The piston rods of the two driving oil cylinders are parallel to each other. A connecting plate is fixed between the piston rods of the two driving oil cylinders. Push columns are installed between both ends of the connecting plate and the stop block body. The two push columns are parallel to each other. A guide plate for guiding the two push columns is installed on the oil cylinder bracket.

4. The lightweight partition board extruding machine according to claim 1, characterized in that: The forming die includes a die box and a die core. The die box includes an upper end cover and a lower end cover that are buckled together. A die cavity is formed between the upper end cover and the lower end cover. The die core includes an orifice plate arranged at the inlet of the die cavity. A forming pressing plate is arranged at the outlet of the die cavity. The forming pressing plate includes two side plates and two top plates.

5. The lightweight partition board extruding machine according to claim 4, characterized in that: A guiding channel is arranged between the orifice plate and the forming pressing plate. The area of the feeding end of the guiding channel is larger than that of the discharging end.

6. The lightweight partition board extruding machine according to claim 4, characterized in that: A plurality of forming columns are arranged in rows on the orifice plate. The forming columns extend to the outlet of the die cavity.

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