Biomass fuel rod briquetting device

Abstract

The present invention proposes a biomass fuel rod briquetting forming device, which comprises: a base, a column is respectively arranged on the left and right sides of the base, a crossbeam is arranged on the top parts of the two columns, a briquetting forming device is arranged at the bottom of the center of the crossbeam, a forming mold is arranged in the middle of the base and below the briquetting forming device, the forming mold has a lower mold, a lower cavity is arranged on the top of the lower mold, an upper mold is arranged above the lower mold, an upper cavity is arranged at the bottom of the upper mold, the top of the upper mold is connected to the forming device, a demoulding spring is arranged at the bottom of the upper cavity, the upper mold comprises an upper mold lower half part and an upper mold upper half part, and a demoulding spring lifting and adjusting structure is arranged at the lower half part of the upper mold. The present invention can adjust the height of the demoulding spring, and when it is necessary to increase the force of the spring to bounce off the biomass fuel forming block, the demoulding spring can be moved down, otherwise, it is moved up.

Description

Technical Field

[0001] The invention relates to the field of biomass fuel molding equipment, in particular to a biomass fuel rod briquetting molding device. Background Art

[0002] The prior art discloses a biomass fuel briquetting machine, which includes a base, a column is respectively arranged on the left and right sides of the base, a crossbeam is arranged between the tops of the two columns, a briquetting forming device (hydraulic cylinder, etc.) is arranged at the bottom of the center of the crossbeam, and a forming mold is arranged in the middle of the base and below the briquetting forming device. The forming mold has a lower mold, a lower cavity is arranged on the top of the lower mold, an upper mold is arranged above the lower mold, an upper cavity is arranged at the bottom of the upper mold, and the top of the upper mold is connected to the briquetting forming device. After the briquetting forming device moves downward, the biomass raw materials in the upper and lower mold cavities are briquetized.

[0003] It is difficult to demould the biomass fuel briquette equipment after the biomass fuel briquette is formed. In the prior art, springs are used to perform later demoulding on the biomass fuel briquette. However, the disadvantages of this structure are also quite obvious: after the spring is installed in place, the position of the spring cannot be adjusted as needed later, resulting in the inability to adjust the elastic force of the spring to eject the biomass fuel briquette as needed. Summary of the invention

[0004] The object of the present invention is to provide a biomass fuel rod briquetting forming device, which can adjust the elastic force of a demoulding spring.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a biomass fuel rod briquetting forming device, which comprises: a base, a column is respectively arranged on the left and right sides of the base, a crossbeam is arranged on the top parts of the two columns, a briquetting forming device is arranged at the bottom of the center of the crossbeam, a forming mold is arranged in the middle of the base and below the briquetting forming device, the forming mold has a lower mold, a lower cavity is arranged on the top of the lower mold, an upper mold is arranged above the lower mold, an upper cavity is arranged at the bottom of the upper mold, the top of the upper mold is connected to the forming device, and a demoulding spring is arranged at the bottom of the upper cavity The spring is characterized in that the upper die comprises an upper die lower half and an upper die upper half, the upper die lower half is provided with an axial protrusion, the axial protrusion is provided with an external thread structure, the upper die lower half is provided with an internal thread hole matched with the axial protrusion, the bottom of the internal thread hole is provided with a vertical through hole leading to the upper cavity provided by the upper die, the upper part of the vertical through hole is provided with an internal thread structure, an adjusting screw that can move toward the upper cavity or move away from the upper cavity is provided in the vertical through hole, the lower end of the adjusting screw is provided with a spring mounting seat through a thread structure, and the spring is installed on the spring mounting seat;

[0006] The axial protrusion is provided with an adjusting screw lifting space located above the adjusting screw.

[0007] In the biomass fuel rod briquetting device of the present invention, an adjusting screw limiting structure is provided in the adjusting screw lifting space, and the adjusting screw limiting space can prevent the adjusting screw from moving upward after being installed in place, thereby improving the stability and reliability of the device.

[0008] In the biomass fuel rod briquetting device of the present invention, the adjusting screw limiting structure is a plurality of pads installed in the adjusting screw lifting space. The rigid pads can provide rigid support to the top of the adjusting screw. The number of pads is selected according to the displacement to be limited by the lifting space.

[0009] In the biomass fuel rod briquetting forming device of the present invention, a locking pin is provided between the axial protrusion and the lower plate portion of the upper mold, which can enhance the structural strength of the upper mold, avoid the problem of failure of the threaded connection structure after long-term use, and improve the service life of the device.

[0010] In the biomass fuel rod briquetting forming device of the present invention, the lower half of the upper mold is provided with an air hole leading to the vertical through hole. During the separation process of the forming block, the influence of negative pressure and the increased difficulty of separation are avoided. The air hole allows the top of the biomass fuel forming block to communicate with the outside atmosphere, thereby facilitating the spring to push the biomass fuel forming block away.

[0011] In the biomass fuel rod briquetting device of the present invention, the air hole is connected to a high-pressure gas source (the gas pressure can be 2.5-3.0 bar or 2.5-5 MPa), and the high-pressure gas source can provide instantaneous high pressure to demold the biomass fuel molding block. With the demolding spring, the demolding is more efficient.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. The height of the demoulding spring can be adjusted in the present invention. When the force of the spring to bounce off the biomass fuel forming block needs to be increased, the demoulding spring can be moved downward, otherwise, it can be moved upward.

[0014] 2. The upper die is divided into an upper part and a lower part to facilitate the installation and disassembly of the spring adjustment structure.

[0015] 3. By setting air holes in the upper mold, it is possible to prevent the biomass fuel molding block from being adsorbed due to negative pressure at the spring mounting hole, which increases the difficulty of spring demoulding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the biomass fuel rod briquetting molding device in Example 1 of the present invention.

[0017] Figure 2 for Figure 1 Enlarged view of point I in the middle.

[0018] Figure 3 This is a schematic structural diagram of a biomass fuel rod briquetting device provided with a locking pin in Example 2 of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the biomass fuel rod briquetting device in Example 3 of the present invention. DETAILED DESCRIPTION

[0020] The technical solution adopted by the present invention will be further described below in conjunction with the schematic diagram.

[0021] Example 1: See Figure 1 A biomass fuel rod briquetting device comprises: a base 1, a column 2 is respectively arranged on the left and right sides of the base, a crossbeam is arranged on the top parts of the two columns, a briquetting device is arranged at the bottom of the center of the crossbeam, a forming mold is arranged in the middle of the base and below the briquetting device, the forming mold has a lower mold 3, a lower cavity is arranged on the top of the lower mold, an upper mold 4 is arranged above the lower mold, an upper cavity is arranged at the bottom of the upper mold, the top of the upper mold is connected to the forming device, a demoulding spring 5 is arranged at the bottom of the upper cavity, and the upper mold 4 includes an upper mold lower half 4a and an upper mold upper half 4b The lower half of the upper mold is provided with an axial protrusion 4c, the axial protrusion is provided with an external thread structure, the lower half of the upper mold is provided with an internal thread hole matching the axial protrusion, the bottom of the internal thread hole is provided with a vertical through hole leading to the upper cavity provided by the upper mold, the upper part of the vertical through hole is provided with an internal thread structure, and the vertical through hole is provided with an adjusting screw 6 that can move toward the upper cavity or away from the upper cavity, the lower end of the adjusting screw 6 is installed with a spring mounting seat 7 through a thread structure, the spring 5 is installed on the spring mounting seat, and the axial protrusion 4c is provided with an adjusting screw lifting space located above the adjusting screw.

[0022] A columnar body for opening holes in the biomass fuel molding block is arranged in the upper mold cavity. The columnar body can facilitate the opening of holes inside the biomass fuel molding block and improve the combustion efficiency and burnout rate of the biomass fuel molding block.

[0023] See also Figure 2 , an adjusting screw limiting structure is arranged in the adjusting screw lifting space, through which the adjusting screw limiting space can prevent the adjusting screw from moving upward after being installed in place, thereby improving the stability and reliability of the device. For example, the adjusting screw limiting structure is a plurality of pads 8 installed in the adjusting screw lifting space, and the rigid pads can provide rigid support to the top of the adjusting screw, and the number of pads is selected according to the displacement to be limited by the lifting space. Here, four pads are arranged at the top of the adjusting screw for limiting, and the height of the pads can be set to 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm and other moduli, which is convenient for selection according to needs, and the material of the pads is iron material.

[0024] from Figure 2 It can be seen that the spring mounting seat is an inverted T-shaped seat. The iron spring mounting seat is arranged at the bottom of the adjusting screw. The detachable structure facilitates the later replacement of the spring. The vertical rod of the spring mounting seat is installed in the bottom threaded hole of the adjusting screw through a threaded structure, and the spring is welded and installed on the spring mounting seat.

[0025] It should be noted that the upper mold is made of metal, and the gasket can be provided with an annular groove in the circumferential direction of the raw surface, and an annular magnet is installed in the annular groove, so that the gasket can be conveniently adsorbed and installed in the lifting space of the adjusting screw. To facilitate the detachment of the gasket, an intermediate opening can be provided in the middle of the gasket, and a radially arranged hook holding hole can be provided on the hole wall of the intermediate opening. After the hook enters the intermediate opening, the hook enters the hook holding hole, thereby detaching the gasket from the lifting space of the adjusting screw.

[0026] The installation process of the present invention is as follows: after the demoulding spring is welded and installed on the spring mounting seat, the spring mounting seat is threadedly installed on the bottom of the adjusting screw, and then the adjusting screw is screwed into the vertical through hole provided in the lower half of the upper mold. The screwing depth is selected according to needs, and then a pad is installed in the adjusting screw lifting space above the adjusting screw, and finally the upper half of the upper mold is screwed into the internal thread structure of the lower part of the lower mold through the threaded structure, so that the demoulding spring adjustment structure is installed.

[0027] Example 2: This example is different from Example 1 in that, in the biomass fuel rod briquetting device of the present invention, see Figure 3 A locking pin 9 is provided between the axial protrusion and the lower plate portion of the upper die. This structure can strengthen the structural strength of the upper die, avoid the problem of failure of the threaded connection structure after long-term use, and improve the service life of the device.

[0028] After the demoulding spring structure is installed in place, the locking pin is inserted into the locking pin holes axially arranged in the two parts of the upper mold after the two parts of the upper mold are installed in place.

[0029] Example 3: This example is different from Example 1 in that, in the biomass fuel rod briquetting device of the present invention, see Figure 4 The lower part of the upper mold is provided with an air hole 10 leading to the vertical through hole. During the separation process of the molding block, the air hole can avoid the influence of negative pressure and increase the difficulty of separation. The air hole can allow the top of the biomass fuel molding block to communicate with the outside atmosphere, thereby facilitating the spring to push the biomass fuel molding block away.

[0030] Due to the existence of pores, when negative pressure is formed at the top of the upper cavity of the upper mold near the demolding spring mounting hole, the pores can be connected to the external atmospheric environment, so that the biomass fuel molding block will not be adsorbed in the molding cavity due to negative pressure. In addition, during the molding process, the pores can also quickly release the air in the upper mold cavity.

[0031] from Figure 4 It can be seen that a sealing ring is arranged between the upper half of the upper mold and the lower half of the upper mold, which can prevent the high-pressure gas from leaking from the gap between the upper half of the upper mold and the lower half of the lower mold after entering the air hole.

[0032] As a further improvement to this embodiment, the air hole is connected to a high-pressure air source, which can provide instantaneous high pressure to allow the biomass fuel molding block to be demolded, and with the demolding spring, the demolding is more efficient. The high-pressure air source is connected to the air hole through a pipeline, and a solenoid valve is installed in the pipeline. The solenoid valve is connected to the single-chip microcomputer. When the molding is completed and the mold needs to be demolded, the single-chip microcomputer opens the solenoid valve and connects the high-pressure air source, so that the high-pressure gas can enter, thereby promoting the biomass fuel molding block to be separated.

[0033] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the content of the technical solution of the present invention and still falls within the protection scope of the present invention.

Claims

1. A biomass fuel rod briquetting device, comprising: The base is provided with a column on the left and right sides of the base, a crossbeam is provided on the top parts of the two columns, a pressing block forming device is provided at the bottom of the center of the crossbeam, a forming mold is provided in the middle part of the base and below the pressing block forming device, the forming mold has a lower mold, a lower cavity is provided on the top of the lower mold, an upper mold is provided above the lower mold, an upper cavity is provided at the bottom of the upper mold, and a demoulding spring is provided at the bottom of the upper cavity, characterized in that the upper mold comprises an upper mold lower half part and an upper mold upper half part, the upper mold lower half part is provided with an axial protrusion, the axial protrusion is provided with an external thread structure, the upper mold lower half part is provided with an internal thread hole matching the axial protrusion, a vertical through hole leading to the upper cavity provided by the upper mold is provided at the bottom of the internal thread hole, an internal thread structure is provided at the upper part of the vertical through hole, an adjusting screw that can move toward the upper cavity or move away from the upper cavity is provided in the vertical through hole, a spring mounting seat is installed at the lower end of the adjusting screw through a thread structure, and the spring is installed on the spring mounting seat; The axial protrusion is provided with an adjusting screw lifting space located above the adjusting screw; An adjusting screw limiting structure is arranged in the adjusting screw lifting space; The adjusting screw limiting structure is a plurality of pads installed in the adjusting screw lifting space; A locking pin is provided between the axial protrusion and the lower plate portion of the upper die; The lower half of the upper mold is provided with air holes leading to the vertical through holes; The spring mounting seat is an inverted T-shaped seat; The upper die is made of metal, and a ring groove is arranged on the surface of the cushion block in the circumferential direction, in which a ring magnet is installed; a middle opening is arranged in the middle of the cushion block, and a radially arranged hook holding hole is arranged on the hole wall of the middle opening.

2. The biomass fuel rod briquetting device according to claim 1, characterized in that: The air hole is connected to a high-pressure air source.

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