Briquetting forming ring die equipment and ring die block used on briquetting forming ring die equipment

Abstract

The utility model discloses briquetting forming circular mould equipment and a circular mould block used on the briquetting forming circular mould equipment, and relates to the technical field of biomass fuel processing, the briquetting forming circular mould equipment provided by the utility model comprises an annular circular mould body, the circular mould body is formed by arranging and splicing a plurality of circular mould blocks along the circumferential direction, the circular mold body is provided with a plurality of circular mold layers in the axial direction of the circular mold body, each circular mold layer is provided with a plurality of mold holes distributed in the circumferential direction, and the mold holes in every two adjacent circular mold layers are arranged in a staggered mode in the circumferential direction. And the section shapes of the ring die blocks in the assembled ring die body in the circumferential direction of the ring die body are consistent. According to the pressing block forming circular mold equipment, the structural stability of the circular mold structure and the stress uniformity of the pressing rollers are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass fuel processing, in particular to a briquetting ring die device and a ring die block for the briquetting ring die device. Background Art

[0002] The application of biomass straw resources has broad prospects and potential, and can solve some resource and environmental problems. At present, in the application of straw resources, there are many fields that can utilize its high calorific value and fiber characteristics, such as biomass energy (direct combustion, solidified molding fuel, liquefaction, gasification, fermentation, etc.), farmland improvement, animal feed, as industrial raw materials, and edible mushroom growing beds, etc. Therefore, when using biomass straw, in order to facilitate the transportation and storage of straw, it is necessary to crush the dried straw and then compress it into solid molding fuel.

[0003] At present, an existing biomass fuel briquetting device is a briquetting device with a single-layer ring die structure. However, the device with a single-layer ring die structure not only has low production efficiency and high unit energy consumption, but also when increasing the number of die holes to improve production efficiency, it will cause the die plate size of the single-layer ring die to be too large, resulting in an oversized transportation size and an excessive force arm, thus leading to poor equipment stability and further increasing energy consumption. Another biomass fuel briquetting device is a briquetting device with a double-layer ring die structure, and the double-layer ring die structure is formed by combining multiple modules. Although the production efficiency is improved by increasing the number of layers of die holes without increasing the diameter size of the die plate, in the prior art, when the module of the double-layer ring die structure cooperates with the pressure roller, the extrusion force between the die holes of the upper and lower layers and the pressure roller is uneven, which easily leads to poor stability of the double-layer ring die structure, and the uneven force on the pressure roller results in high energy consumption of the equipment unit.

[0004] Therefore, how to improve the structural stability of the ring die structure and the uniformity of the force on the pressure roller is a technical problem that those skilled in the art need to solve at present. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a briquetting ring die device and a ring die block for the briquetting ring die device, so as to improve the structural stability of the ring die structure and the uniformity of the force on the pressure roller.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] In a first aspect, the present utility model provides a briquetting forming ring die device, which includes an annular ring die body. The ring die body is formed by splicing a plurality of ring die blocks arranged circumferentially. The ring die body has a plurality of ring die layers along its axial direction. Each ring die layer has a plurality of die holes arranged circumferentially. The die holes in two adjacent ring die layers are arranged staggeredly in the circumferential direction; the cross-sectional shapes of the plurality of ring die blocks in the ring die body are the same in the circumferential direction of the ring die body.

[0008] The so-called staggering specifically means that the axial center planes of the die holes in two adjacent ring die layers are not coplanar in the circumferential direction.

[0009] In the case of adopting the above technical solution, the ring die body is formed by splicing a plurality of identical ring die blocks arranged circumferentially. The formed ring die body has a plurality of ring die layers. Each ring die layer has a plurality of die holes arranged circumferentially. And the die holes in two adjacent ring die layers are arranged staggeredly in the circumferential direction. Therefore, during the extrusion of the material by the pressure roller, as the pressure roller rotates and advances along the circumferential direction, the die holes in adjacent ring die layers can extrude and discharge the material simultaneously. And the pressure roller and the die holes arranged staggeredly in the circumferential direction of the plurality of ring die layers are alternately extruded and matched. This makes the force on the ring die body in the circumferential direction continuous and uninterrupted, improves the uniformity of the force on the inner wall of the ring die body, the die hole feeding port and the pressure roller, enhances the stability and consistency of the equipment operation, prevents large working condition fluctuations during the operation process, and thus reduces the energy consumption during the operation process. And when the ring die body is formed by splicing a plurality of ring die blocks, the continuous and uniform force can improve the structural stability of the ring die body. In addition, since the ring die body is formed by splicing a plurality of identical ring die blocks, only one processing die is needed to complete the processing of all ring die blocks, reducing the production and maintenance costs, and the assembly of the same kind of ring die blocks is simpler and more convenient.

[0010] Optionally, in the above briquetting forming ring die device, the plurality of ring die layers include a first ring die layer and a second ring die layer. In this way, a ring die body with double-layer die holes is formed. The die holes of the first ring die layer and the die holes of the second ring die layer are arranged staggeredly in the circumferential direction, making the force on the ring die body in the circumferential direction continuous, improving the uniformity of the force on the inner wall of the ring die body, the die hole feeding port and the pressure roller, enhancing the stability and consistency of the equipment operation, preventing large working condition fluctuations during the operation process, and thus reducing the energy consumption during the operation process. And the continuous and uniform force can improve the structural stability of the ring die body.

[0011] Optionally, in the above-mentioned briquetting ring die equipment, the included angle between the axial center line of a die hole and the radial line of the ring die body passing through the center point of the inlet end of the die hole is the die hole angle, and the angle range of the die hole angle is 3° to 6°. In this way, by setting the die hole angle within the preset range, the smoothness of the process of the material entering the die hole and being extruded and formed is improved, which is beneficial to the briquetting of biomass, making the density of the briquette higher and further improving the efficiency of biomass briquetting.

[0012] The axial direction of the die hole is the central axis direction penetrating through the die hole, and the axial center line is the axial central axis of the die hole.

[0013] Optionally, in the above-mentioned briquetting ring die equipment, in the direction from the inner circle to the outer circle of the ring die body, the axial center line of the die hole inclines towards the rotational advancing direction of the pressure roller. In this way, it is beneficial to improve the smoothness of the material entering the die hole in the inner circle of the ring die body and improve the efficiency of the material flowing into the die hole and being pressed.

[0014] Optionally, in the above-mentioned briquetting ring die equipment, it further includes a driving motor, a pressure roller, a pressure roller bracket, a pressure roller shaft and a main shaft; the pressure roller is arranged in the inner ring of the ring die body, there is an extrusion gap between the pressure roller and the inner wall of the inner ring of the ring die body, the pressure roller is rotatably connected to the pressure roller bracket through the pressure roller shaft around its own axis, the main shaft is connected to the pressure roller bracket, and the driving motor drives the main shaft to rotate around its own axis, and the main shaft is located on the axis of the ring die body. In this way, by driving the main shaft to rotate through the driving motor, the main shaft drives the pressure roller bracket to rotate, the pressure roller bracket drives the pressure roller shaft and the pressure roller to travel in the inner ring of the ring die body in the circumferential direction, and with the rotation of the pressure roller itself, the material in the extrusion gap is extruded into the die hole of the ring die body to complete briquetting. This briquetting ring die equipment has the advantages of high forming efficiency, stable structure and uniform stress.

[0015] Optionally, in the above-mentioned briquetting ring die equipment, it further includes an upper pressure plate and a feeding protective cover. The feeding protective cover is connected to the ring die body through the upper pressure plate, and along the direction from the feeding port of the feeding protective cover to the ring die body, the aperture of the feeding protective cover gradually increases. In this way, through the feeding protective cover, not only is it ensured that the material smoothly enters the inner ring of the ring die body for extrusion, but also when the material is input through the feeding port, if the input amount of the material is large, there will be more materials that cannot be extruded into blocks in time, resulting in excessive materials accumulating in the extrusion working area of the pressure roller and the ring die body, thus affecting the extrusion work. Therefore, the aperture size of the feeding protective cover is smaller at the feeding port, preventing a large amount of materials from being input during feeding, while the aperture size near the inner ring of the ring die body is larger, having a larger material buffer space and reducing the adverse impact of material accumulation on the extrusion work.

[0016] In a second aspect, the present utility model further provides an annular module for a briquetting ring die device. The annular module includes at least a first sub-module and a second sub-module connected in a stacked manner, and the first sub-module and the second sub-module have an I-shaped cross-section;

[0017] The first sub-module includes a first top plate, a first connecting plate, and a first bottom plate connected in sequence. The second sub-module includes a second top plate, a second connecting plate, and a second bottom plate connected in sequence. The first bottom plate is connected to the second top plate, and the central planes of the first connecting plate and the second connecting plate in the direction perpendicular to the I-shaped cross-section of the first sub-module and the second sub-module are not coplanar;

[0018] Both sides of the first connecting plate jointly form grooves with the first top plate and the first bottom plate, and both sides of the second connecting plate also jointly form grooves with the second top plate and the second bottom plate;

[0019] The groove of one annular module and the groove of another adjacent annular module are joined together to form a die hole.

[0020] In the case of adopting the above technical solution, the die holes of the first annular die layer formed by splicing and the die holes of the second annular die layer are arranged staggeredly in the circumferential direction. The staggeredly arranged die holes on the annular die body make the force on the annular die body continuous in the circumferential direction, improving the uniformity of the force on the inner wall of the annular die body, the die hole feeding port, and the pressure roller, enhancing the stability and consistency of the equipment operation, preventing large working condition fluctuations during the operation process, thereby reducing the energy consumption during the operation process, and the continuous and uniform force can improve the structural stability of the annular die body.

[0021] Optionally, in the above annular module, fixing holes are provided at the positions on the top surface of the first top plate corresponding to the first connecting plate and at the positions on the bottom surface of the second bottom plate corresponding to the second connecting plate. In this way, the annular module is fastened and limited axially along the annular die body through the cooperation of the fixing holes and bolts, ensuring the stability of each annular module during the material extrusion process and preventing the annular module from falling off.

[0022] Optionally, in the above annular module, along the circumferential direction of the annular die body, the width of at least one of the first top plate, the first bottom plate, the second top plate, and the second bottom plate is L, and the stagger distance in the circumferential direction between the axial centerlines of one die hole formed by the groove of the first sub-module and another die hole formed by the groove of the second sub-module is D, and the value range of D is In this way, the stagger distance between the die holes of the first annular die layer and the die holes of the second annular die layer is set within a preset range to ensure the uniformity of the force on each die hole and the good continuity of the alternating discharging of adjacent annular die layers.

[0023] Optionally, in the above ring module, along the axis direction of the ring die body, the axial distance between the axial centerlines of one die hole formed by the groove of the first sub-module and the axial centerline of the other die hole formed by the groove of the second sub-module is H, and the value range of H is Thus, if the axial distance between the die holes in the first ring die layer and the die holes in the second ring die layer in the axial direction of the ring die body is too small, the axial arrangement of the die holes is too dense, which is not conducive to the timely supply of materials, resulting in some die holes not being filled with materials, and the forming density of the briquette is not high. If the axial distance is too large, the axial arrangement of the die holes is too sparse, and the forming efficiency of the briquette is reduced. Considering the forming quality and forming efficiency of the briquette, the value range of the axial distance is selected as Description of the Drawings

[0024] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0025] Figure 1 It is a schematic structural diagram of the ring die body of the briquetting ring die device disclosed in the embodiment of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the ring module used on the briquetting ring die device disclosed in the embodiment of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the die hole angle disclosed in the embodiment of the present invention;

[0028] Figure 4 It is a schematic structural diagram of the distance between two staggered die holes disclosed in the embodiment of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the briquetting ring die device disclosed in the embodiment of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the assembly of a ring module disclosed in the embodiment of the present invention.

[0031] Reference Signs:

[0032] 100 is the ring die body, 110 is the die hole, 111 is the pre-pressing area, 112 is the extrusion area, 113 is the shape-holding area, 114 is the discharging area, 120 is the ring die block, 121 is the first sub-module, 1211 is the first top plate, 1212 is the first connecting plate, 1213 is the first bottom plate, 122 is the second sub-module, 1221 is the second top plate, 1222 is the second connecting plate, 1223 is the second bottom plate, 123 is the fixing hole, 124 is the common plate, 130 is the die hole angle;

[0033] 10 is the driving motor, 20 is the pressing roller, 21 is the pressing roller bracket, 22 is the pressing roller shaft, 30 is the main shaft, 40 is the speed reducer, 50 is the frame, 60 is the base, 70 is the upper pressing plate, 80 is the feeding protective cover. Detailed implementation manners

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined. The meaning of "several" is one or more unless otherwise specifically defined.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall 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 a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] As Figure 1 , Figure 2 , Figures 4 - 6 shown, an embodiment of the present utility model provides a briquetting ring die device, which includes an annular ring die body 100. The ring die body 100 is formed by splicing a plurality of ring die blocks 120 arranged in a circumferential direction. The ring die body 100 has a plurality of ring die layers along its axial direction. Each ring die layer has a plurality of die holes 110 arranged in a circumferential direction, and the die holes 110 on each ring die layer are evenly spaced. The cross-sectional shapes of each ring die block in the circumferential direction of the ring die body are the same. The die holes 110 penetrate through the inner and outer rings of the ring die body 100. The material inlet of the die holes 110 is located in the inner ring of the ring die body 100, and the material outlet of the die holes 110 is located in the outer ring of the ring die body 100. Biomass is extruded in the inner ring of the ring die body 100, enters the die holes 110 from the material inlets of the die holes 110, and the formed briquettes then break away from the material outlets of the die holes 110. The die holes 110 in two adjacent ring die layers are arranged staggeredly in the circumferential direction, and the staggering distance can be equal or unequal. It should be noted that the same ring die blocks 120 refer to the ring die blocks with the same shape structure and size.

[0040] Since the ring die body 100 is formed by splicing a plurality of identical ring die blocks 120 arranged in a circumferential direction, the formed ring die body 100 has a plurality of ring die layers, each ring die layer has a plurality of die holes 110 arranged in a circumferential direction, and the die holes 110 in two adjacent ring die layers are staggered in the circumferential direction. Therefore, during the extrusion of materials by the pressing roller 20, as the pressing roller 20 rotates and advances in the circumferential direction, the die holes 110 in adjacent ring die layers can simultaneously extrude and discharge materials, and the pressing roller 20 and the die holes 110 of the plurality of ring die layers arranged in a staggered manner in the circumferential direction are alternately extruded and matched, so that the force on the ring die body 100 in the circumferential direction is continuous and almost uninterrupted, improving the uniformity of the force on the inner wall of the ring die body 100, the feeding port of the die holes 110, and the pressing roller 20, enhancing the stability and consistency of the equipment operation, preventing large operating condition fluctuations during the operation process, and thus reducing the energy consumption during the operation process. And when the ring die body 100 is formed by splicing a plurality of ring die blocks 120, the continuous and uniform force can improve the structural stability of the ring die body 100. In addition, since the ring die body 100 is formed by splicing a plurality of identical ring die blocks 120, only one processing die is needed to complete the processing of all ring die blocks 120, reducing the production and maintenance costs, and the assembly of the same ring die blocks 120 is simpler and more convenient, without the need to select different ring die blocks for assembly.

[0041] Exemplarily, the plurality of ring die layers include a first ring die layer and a second ring die layer. The first ring die layer and the second ring die layer are stacked in sequence from top to bottom along the axial direction of the ring die body 100. The first ring die layer has a plurality of die holes 110 arranged in the circumferential direction of the ring die body 100, and the second ring die layer has a plurality of die holes 110 arranged in the circumferential direction of the ring die body 100. In this way, a ring die body 100 with double-layer die holes is formed. The die holes 110 of the first ring die layer and the die holes 110 of the second ring die layer are staggered in the circumferential direction, so that the force on the ring die body in the circumferential direction is continuous, improving the uniformity of the force on the inner wall of the ring die body 100, the feeding port of the die holes 110, and the pressing roller 20, enhancing the stability and consistency of the equipment operation, preventing large operating condition fluctuations during the operation process, and thus reducing the energy consumption during the operation process. And the continuous and uniform force can improve the structural stability of the ring die body 100.

[0042] Of course, the number of ring die layers can also be three layers, four layers or more layers. According to the actual requirements of briquetting, an appropriate number of ring die layers can be selected and set.

[0043] Such as Figure 1 and Figure 3As shown in the figure, the included angle between the axial center line of a die hole 110 and the radial line of the ring die body 100 passing through the center point of the inlet end of the die hole 110 is the die hole angle 130. This radial line is the line from the center of the ring die body 100 in the same plane as the axial center line of the die hole 110 to the center point of the inlet end of the die hole 110. And in this embodiment, the value range of the die hole angle 130 of the ring die body 100 is set to 3° to 6°. If the value of the die hole angle 130 is relatively large, it may cause insufficient extrusion pressure on the material, resulting in insufficient density of the formed briquette or even difficulty in forming. If the value of the die hole angle 130 is relatively small, it may cause the material in the inner ring of the ring die body 100 to be difficult to enter the die hole 110. Therefore, whether the value of the die hole angle 130 is relatively large or small, it is not conducive to the production of biomass briquettes. Thus, when the value range of the die hole angle 130 is set to 3° to 6°, the smoothness of the process of the material entering the die hole 110 and being extruded and formed is improved, which is beneficial to the briquetting of biomass, making the density of the briquette relatively high and further improving the efficiency of biomass briquetting. In a specific embodiment, when using the briquetting ring die equipment provided in this embodiment, compared with the briquetting equipment of the ring die in the prior art, the motor power is reduced from 280 kw to 220 kw (a decrease of 22%).

[0044] In a specific embodiment, the angle value of the die hole angle 130 can be 3°, 4.2°, 4.3°, 4.5°, 4.6°, 5°, 5.5°, 6°, etc., and it can be preferably set to 4.5° to ensure good smoothness of the material during the extrusion forming process, thereby improving the working efficiency of briquetting. At the same time, when the die hole angle 130 of the briquetting ring die equipment provided in this embodiment is set to 4.5°, compared with the briquetting equipment of the ring die in the prior art, the energy consumption can be further reduced, and the energy consumption can be reduced by 23%.

[0045] In a specific embodiment, the ring die body 100 is formed by splicing and combining 100 ring die blocks 120. And there are 100 die holes 110 in each of the first ring die layer and the second ring die layer of the ring die body 100 and they are arranged staggeredly, while the die holes 110 on each ring die layer are evenly distributed. The die holes 110 formed by splicing and combining are square holes, or those skilled in the art can set the die holes 110 to other shapes according to actual needs, such as circular or rectangular, etc.

[0046] Furthermore, in order to improve the efficiency of the material in the inner circle of the ring die body 100 entering the die hole 110, in the direction from the inner circle to the outer circle of the ring die body 100, the axial center line of the die hole 110 is inclined towards the rotational forward direction of the pressure roller 20, thereby improving the smoothness of the material being extruded into the die hole 110 and further improving the production efficiency of the biomass fuel briquetting equipment.

[0047] Such as Figure 2As shown, along the direction from the feed inlet to the discharge outlet of the die hole 110, the die hole 110 is sequentially divided into a pre-pressing area 111, an extrusion area 112, a shape-holding area 113, and a discharge area 114. Biomass is pressed into the die hole 110 through the feed inlet and sequentially undergoes pre-pressing in the pre-pressing area 111, extrusion and compression in the extrusion area 112, further shaping and holding of the outer shape in the shape-holding area 113, and finally discharges through the discharge area 114. Moreover, the pre-pressing area 111, the extrusion area 112, the shape-holding area 113, and the discharge area 114 are smoothly transitionally connected, thereby improving the smoothness of extrusion and discharge and further enhancing the production efficiency.

[0048] As Figure 5 shown, in this embodiment, the briquetting ring die device further includes a driving motor 10, a pressure roller 20, a pressure roller bracket 21, a pressure roller shaft 22, and a main shaft 30. Among them, multiple pressure rollers 20 are provided, and each pressure roller 20 is arranged in the inner ring of the ring die body 100. There is an extrusion gap between the circumferential surface of each pressure roller 20 and the inner wall of the inner ring of the ring die body 100, so that each pressure roller 20 can rotate smoothly in the inner ring of the ring die body 100. Each pressure roller 20 is rotatably connected to the pressure roller bracket 21 through the pressure roller shaft 22 around its own axis. The main shaft 30 is connected to the pressure roller bracket 21, and the driving motor 10 drives the main shaft 30 to rotate around its own axis through a speed reducer 40, while the ring die body 100 is installed and fixed on the base 60 of the frame 50. In a specific embodiment, the distance of the extrusion gap between the circumferential surface of each pressure roller 20 and the inner wall of the inner ring of the ring die body 100 is 1 mm.

[0049] In this way, when the briquetting ring die device works, the driving motor 10 drives the main shaft 30 to rotate, the main shaft 30 drives the pressure roller bracket 21 to rotate, the pressure roller bracket 21 drives the pressure roller shaft 22 and the pressure roller 20 to travel in the inner ring of the ring die body 100 along the circumferential direction, and with the rotation of each pressure roller 20 itself, the material in the extrusion gap is extruded into the die hole 110 of the ring die body 100 to complete briquetting. The briquetting ring die device has the advantages of high forming efficiency, stable structure, and uniform stress.

[0050] Furthermore, the briquetting ring die equipment provided in this embodiment further includes an upper pressure plate 70 and a feeding protective cover 80. The feeding protective cover 80 is installed on the ring die body 100 through the upper pressure plate 70, and the aperture of the feeding protective cover 80 gradually increases along the direction from the feeding port of the feeding protective cover 80 to the ring die body 100, so that the diameter of the feeding port of the feeding protective cover 80 is relatively small. During the process of feeding materials through the feeding port, if the amount of fed materials is large, there will be a lot of materials that cannot be extruded into blocks in time, resulting in excessive materials accumulating in the extrusion working area of the pressure roller 20 and the ring die body 100, thus affecting the extrusion work. Therefore, the aperture of the feeding port in the feeding protective cover 80 is relatively small, preventing a large amount of materials from being fed during feeding. And the aperture size near the inner ring of the ring die body 100 is relatively large, providing a large material buffer space and reducing the adverse impact of material accumulation on the extrusion work.

[0051] Such as Figure 1 and Figure 2As shown, optionally, an embodiment of the present utility model also discloses a ring module for a briquetting ring die device, hereinafter referred to as the ring module 120. The ring module 120 can be used in the briquetting ring die device in the above embodiment. A plurality of such ring modules 120 are used to be arranged and spliced in a circumferential direction to form an annular ring die body 100. Among them, the ring module 120 at least includes a first sub-module 121 and a second sub-module 122. The first sub-module 121 and the second sub-module 122 are arranged in a stacked manner along the axial direction of the ring die body 100 and are connected. The first sub-module 121 and the second sub-module 122 are connected as a whole, which can be an integrally formed structure, or a bonded or welded fixed structure. Specifically, the first sub-module 121 includes a first top plate 1211, a first connecting plate 1212, and a first bottom plate 1213 that are sequentially connected along the axial direction (i.e., the stacking direction) of the ring die body 100, forming an I-shaped structure with an I-shaped cross-section; the second sub-module 122 includes a second top plate 1221, a second connecting plate 1222, and a second bottom plate 1223 that are sequentially connected along the axial direction of the ring die body 100, forming an I-shaped structure with an I-shaped cross-section. The first bottom plate 1213 is connected to the second top plate 1221. In the circumferential direction of the ring die body 100, grooves are formed between the first connecting plate 1212 and the first top plate 1211 and the first bottom plate 1213 on both sides, that is, grooves are formed on both sides of the first sub-module 121. Grooves are formed between the second connecting plate 1222 and the second top plate 1221 and the second bottom plate 1223 on both sides, that is, grooves are formed on both sides of the second sub-module 122. The central planes of the first connecting plate and the second connecting plate in the direction perpendicular to the I-shaped cross-section of the first sub-module and the second sub-module are not coplanar. The non-coplanar situation can be arranged to be staggered in the circumferential direction of the ring die body 100, and the first connecting plate 1212 and the second connecting plate 1222 are parallel to each other and parallel to the axial direction of the ring die body 100, or the first connecting plate 1212 and the second connecting plate 1222 are parallel to each other but inclined to the axial direction of the ring die body 100, or the first connecting plate 1212 and the second connecting plate 1222 are not parallel, and at least one of the first connecting plate 1212 and the second connecting plate 1222 is inclined to the axial direction of the ring die body 100, and the first connecting plate 1212 and the second connecting plate 1222 are arranged to be staggered in the circumferential direction of the ring die body 100. All of the above situations can achieve non-coplanar setting;

[0052] In one embodiment, the above-mentioned plurality of ring modules 120 can be arranged and spliced in the circumferential direction to form a ring die body. The grooves of one ring module 120 are combined with the grooves of an adjacent ring module 120 to form a die hole 110. That is, the groove on one side of the first sub-module 121 of one ring module 120 is combined with the groove on the opposite side of the first sub-module 121 of an adjacent ring module 120 to form a die hole 110. The grooves on both sides of one first sub-module 121 can form two die holes 110 with the corresponding grooves of the first sub-modules 121 adjacent to both sides. Similarly, the groove on one side of the second sub-module 122 of one ring module 120 is combined with the groove on the opposite side of the second sub-module 122 of an adjacent ring module 120 to form a die hole 110. The grooves on both sides of one second sub-module 122 can form two die holes 110 with the corresponding grooves of the second sub-modules 122 adjacent to both sides. That is, each die hole 110 is composed of the grooves on two adjacent ring modules 120.

[0053] In the case of adopting the above technical solution, one ring module 120 at least includes a first sub-module 121 and a second sub-module 122 that are stacked and connected. The groove of the first sub-module 121 is used to be spliced with the groove of an adjacent first sub-module 121 to form a die hole 110 in the first ring die layer. The groove of the second sub-module 122 is used to be spliced with the groove of an adjacent second sub-module 122 to form a die hole in the second ring die layer. Since the first connecting plate 1212 of the first sub-module 121 and the second connecting plate 1222 of the second sub-module 122 are not coplanar in the circumferential direction of the ring die body 100, the die holes 110 of the first ring die layer and the die holes 110 of the second ring die layer formed by splicing are staggered in the circumferential direction. The staggered die holes 110 on the ring die body 100 make the forces at each position on the inner circle of the ring die body 100 continuous, improving the uniformity of the forces on the inner wall of the ring die body 100, the feeding port of the die hole 110, and the pressure roller 20, enhancing the stability and consistency of the equipment operation, preventing large working condition fluctuations during operation, thereby reducing the energy consumption during operation, and the continuous and uniform force can improve the structural stability of the ring die body 100.

[0054] Of course, in addition to the first sub-module 121 and the second sub-module 122, the ring die body 100 may further include a plurality of sub-modules having the same structure as the first sub-module 121 and / or the second sub-module 122. The plurality of sub-modules are stacked. Each sub-module is used to form a ring die layer after being combined. The die holes 110 on two adjacent ring die layers are staggered in the circumferential direction.

[0055] Exemplarily, such as Figure 1 、 Figure 2 and Figure 4As shown, in the circumferential direction of the ring die body 100, the sizes of the first top plate 1211 and the first bottom plate 1213 can be the same, the sizes of the second top plate 1221 and the second bottom plate 1223 can be the same, and the sizes of the first top plate 1211 and the second top plate 1221 can be the same. The first connecting plates 1212 are perpendicularly connected to the middle positions between the first top plate 1211 and the first bottom plate 1213, and the second connecting plates 1222 are perpendicularly connected to the middle positions between the second top plate 1221 and the second bottom plate 1223. Then, the grooves on both sides of the first sub-module 121 are symmetrical, the grooves on both sides of the second sub-module 122 are symmetrical, and the flow cross-sectional sizes of the die holes 110 formed after splicing are the same, so that the sizes of the briquettes formed by extrusion are the same. At the same time, the first connecting plates 1212 and the second connecting plates 1222 are parallel to each other and are arranged staggeredly in the circumferential direction of the ring die body 100, and the first bottom plate 1213 and the second top plate 1221 are connected in a staggered manner in the circumferential direction of the ring die body 100.

[0056] Thus, when two adjacent ring die modules 120 cooperate with each other, the first sub-module 121 of one ring die module 120 is used to overlap on the second sub-module 122 of another ring die module 120, that is, the lower surface of the first bottom plate 1213 of the first sub-module 121 of one ring die module 120 overlaps on the upper surface of the second top plate 1221 of the second sub-module 122 of another ring die module 120. At the same time, the grooves of one ring die module 120 and the grooves of another ring die module 120 are combined to form the die hole 110. Thus, multiple ring die modules 120 can be spliced and combined by the first sub-module 121 and the second sub-module 122, and the materials can be extruded and formed simultaneously through the die holes 110 in the upper and lower layers, improving the production efficiency of the briquette forming ring die equipment. Moreover, when the first sub-module 121 and the second sub-module 122 realize the splicing and combination of two ring die modules 120, the mutual cooperation between the first sub-module 121 and the second sub-module 122 also plays a role in preventing errors, avoiding errors in the combination of the ring die modules 120, improving the efficiency of the combination work. In addition, the first sub-module 121 of one ring die module 120 is used to overlap on the second sub-module 122 of another ring die module 120, realizing the limit in the stacking direction of two adjacent ring die modules 120, not easily shaking or misaligning in the stacking direction, improving the stability of the mutual assembly of each ring die module 120, and further improving the stability of the overall structure of the ring die body 100.

[0057] In another example, as Figure 6 shown, the first bottom plate 1213 and the second top plate 1221 can also be non-staggered, that is, the first bottom plate 1213 and the second top plate 1221 are the same plate, that is Figure 6The shared plate 124 shown, and the first top plate 1211, the shared plate 124, and the second bottom plate 1223 have the same dimensions in the circumferential direction of the ring die body 100. The first connecting plate 1212 is not arranged at the middle position of the first top plate 1211, and the second connecting plate 1222 is not arranged at the middle position of the second bottom plate 1223. Then, the grooves on both sides of the first sub-module 121 are asymmetric, and the grooves on both sides of the second sub-module 122 are also asymmetric. However, after adjacent two ring modules 120 are assembled, the flow cross-sectional dimensions of the formed die holes 110 can be the same, as long as the ring modules 120 can be assembled to form the die holes 110 for briquetting, and a ring die body 100 can be formed by assembling this type of ring module 120, and it is not limited to the structural forms of the ring modules 120 listed above.

[0058] As Figure 1 shown, fixing holes 123 are provided on the top surface of the first top plate 1211 of the first sub-module 121 and on the bottom surface of the second bottom plate 1223 of the second sub-module 122. In this way, the ring module 120 is fixed to other components, such as the upper pressure plate 70 and the lower pressure plate, through the cooperation of bolts and the fixing holes 123 to prevent the ring module 120 from falling off.

[0059] Furthermore, the fixing holes 123 are provided at positions on the top surface of the first top plate 1211 corresponding to the first connecting plate 1212 and at positions on the bottom surface of the second bottom plate 1223 corresponding to the second connecting plate 1222. In this way, the fixing holes 123 can extend into the first connecting plate 1212 and the second connecting plate 1222, increasing the connection depth between the fixing holes 123 and the bolts and improving the fastening strength.

[0060] As Figure 3 and Figure 4 shown, along the circumferential direction of the ring die body 100, the width of at least one of the first top plate, the first bottom plate, the second top plate, and the second bottom plate is L. The axial center line of a die hole 110 formed by the groove of the first sub-module 121 and the axial center line of another die hole 110 formed by the groove of the second sub-module 122 are staggered by a distance D in the circumferential direction, that is, the axial center line of a die hole 110 in the first ring die layer and the axial center line of an adjacent another die hole 110 in the second ring die layer are staggered by a distance D in the circumferential direction of the ring die body 100, and the value range of D is Specifically, D can take values such as etc. In this way, setting the stagger distance between the die holes 110 of the first ring die layer and the die holes 110 of the second ring die layer within the above range can ensure the uniformity of the force on each die hole 110 and the good continuity of the alternate discharging of adjacent ring die layers.

[0061] As Figure 4As shown, in some embodiments, along the axial direction of the ring die body 100, the axial distance H between the axial centerlines of one die hole 110 in the first ring die layer and another adjacent die hole 110 in the second ring die layer, and the value range of H is Specifically, H can take a value of etc. If the axial distance between the die holes 110 in the first ring die layer and the die holes 110 in the second ring die layer in the axial direction of the ring die body 100 is too small, the die holes 110 are axially arranged too densely on the ring die body 100, which is not conducive to the timely supply of materials, resulting in some die holes 110 not being filled with materials and the compaction molding density being not high. If the axial distance is too large, the die holes 110 are axially arranged too sparsely, and the compaction molding efficiency is reduced. If the die hole size remains normal, a larger axial distance H will cause an increase in the overall axial size of the ring die body 100. Considering the compaction molding quality, compaction molding efficiency, and the overall size of the ring die body 100, the value range of the axial distance is selected as

[0062] In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0063] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A briquetting forming ring die equipment, characterized in that: The invention comprises an annular ring die body, wherein the ring die body is formed by arranging and splicing a plurality of ring modules in a circumferential direction, the ring die body has at least two ring die layers in its axial direction, each of the ring die layers has a plurality of die holes arranged in the circumferential direction, and the die holes in two adjacent ring die layers are staggered in the circumferential direction; wherein the cross-sectional shapes of the plurality of ring modules in the ring die body in the circumferential direction of the ring die body are consistent.

2. The briquetting ring die equipment according to claim 1, characterized in that: The at least two ring mold layers include a first ring mold layer and a second ring mold layer.

3. The briquetting ring die equipment according to claim 1, characterized in that: The angle between the axial center line of each die hole and the radial line of the ring die body passing through the center point of the inlet end of the die hole is the die hole angle, and the angle range of the die hole angle is 3° to 6°.

4. The briquetting ring die equipment according to any one of claims 1 to 3, characterized in that: It also includes a driving motor, a pressure roller, a pressure roller support, a pressure roller shaft and a main shaft; The pressure roller is arranged in the inner ring of the ring die body, and an extrusion gap is provided between the pressure roller and the inner wall of the inner ring of the ring die body. The pressure roller is rotatably connected to the pressure roller bracket through the pressure roller shaft, the main shaft is connected to the pressure roller bracket, the driving motor is connected to the main shaft, and the main shaft is located on the central axis of the ring die body.

5. The briquetting ring die equipment according to claim 4, characterized in that: In the direction from the inner ring to the outer ring of the ring die body, the axial center line of the die hole is inclined toward the rotational forward direction of the pressure roller.

6. The briquetting ring die equipment according to claim 4, characterized in that: It also includes an upper pressing plate and a feeding protective cover, wherein the feeding protective cover is connected to the ring die body through the upper pressing plate, and the aperture of the feeding protective cover gradually increases along the direction from the feeding port of the feeding protective cover to the ring die body.

7. A ring module for a briquetting ring die device, characterized in that: The ring module comprises at least a first submodule and a second submodule connected in a stacked manner, wherein the first submodule and the second submodule have an I-shaped cross section; The first submodule comprises a first top plate, a first connecting plate and a first bottom plate connected in sequence, the second submodule comprises a second top plate, a second connecting plate and a second bottom plate connected in sequence, the first bottom plate is connected to the second top plate, and the center planes of the first connecting plate and the second connecting plate in a direction perpendicular to the I-shaped sections of the first submodule and the second submodule are not coplanar; Both sides of the first connecting plate form grooves together with the first top plate and the first bottom plate, and both sides of the second connecting plate form grooves together with the second top plate and the second bottom plate.

8. The ring module according to claim 7, characterized in that The top surface of the first top plate and the bottom surface of the second bottom plate are both provided with fixing holes.

9. A briquetting ring die, characterized in that: A ring die body is formed by arranging and splicing a plurality of ring modules as described in claim 7 or 8 in a circumferential direction, and the groove of one ring module is spliced ​​with the groove of another adjacent ring module to form a die hole.

10. The briquetting ring die according to claim 9, characterized in that: Along the circumferential direction of the ring die body, the width of at least one of the first top plate, the first bottom plate, the second top plate, and the second bottom plate is L, and the axial center line of one die hole formed by the groove of the first submodule and the axial center line of another die hole formed by the groove of the second submodule in the circumferential direction are staggered by D, and the value range of D is 11. The briquetting ring die according to claim 9, characterized in that: Along the circumferential direction of the ring die body, the width of at least one of the first top plate, the first bottom plate, the second top plate, and the second bottom plate is L; along the axial direction of the ring die body, the axial distance between the axial center line of one of the die holes formed by the groove of the first submodule and the axial center line of another die hole formed by the groove of the second submodule is H, and the value range of H is

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