A cement batch bin unloading device and a method of designing an unloading device

Abstract

The application discloses a cement ingredient bin unloading device and a method for designing the unloading device. The unloading device comprises multiple cone hoppers located below the silo and multiple discharge ports. The cone hoppers are enclosed by a conical surface, an interpolation inclined surface and a trapezoidal surface. A reinforcing beam is arranged between two adjacent cone hoppers. The lower port is located at the lower end of the cone hopper and is polygonal. The lower edge of the interpolation inclined surface is coincident with the edge of the lower port. The vertex of the interpolation inclined surface is located at the outer edge of the silo. The upper bottom edge of the conical surface is located at the outer edge of the silo. The vertex of the lower end of the conical surface is located at the corner of the lower port. The plane where the reinforcing beam is located intersects with the outer surface of the cone hopper to form a reinforcing beam plane. The reinforcing beam evenly divides the reinforcing beam plane into multiple areas corresponding to the cone hoppers. The upper bottom edges of all the conical surfaces enclose the outer edge of the silo. The unloading device can evenly distribute the materials in the silo, can realize the scattering of the materials, can reduce the frequency of blockage accidents, and can also reduce the construction difficulty of the unloading device.

Description

Technical Field

[0001] This invention relates to the field of cement production, and more specifically, to a discharge device for a cement batching silo and a method for designing such a device. Background Technology

[0002] The raw materials used in cement production are diverse in type and properties, and in recent years, to improve resource utilization, some materials such as desulfurized gypsum, iron tailings, and clay, which are sticky and wet, are also used as ingredients. These materials have high plasticity and are prone to sticking, clumping, and arching during storage and transportation. Currently used unloading devices are generally cone-shaped hoppers installed below the silos of the batching bins. Material in the silo falls through the cone. If multiple outlets are needed, multiple square holes are made on the side wall of the cone, leading vertically downwards to the outer feed ports. These feed ports correspond to different production lines, with material falling from the cone entering different feed ports and then different production lines depending on its landing position. However, due to the inertia of the falling material, this method of distributing material through square holes on the side wall easily leads to uneven powder distribution. The discharge port located directly below the silo typically receives more material, while the outer discharge ports on the side wall of the cone receive less material. This uneven distribution of material over a long period will affect the normal operation of production.

[0003] Furthermore, because the ingredients include materials that are prone to sticking together, these materials adhere and clump together to form large pieces. These large pieces also fall directly from the silo into the conical hopper and then into the production line through the discharge port. If the diameter of these large clumps is larger than the diameter of the discharge port, it can cause the material to get stuck at the discharge port, leading to poor discharge or even blockage, ultimately causing fluctuations in product quality during production. Moreover, once poor discharge or blockage occurs, a large amount of manpower is required to clean the discharge port, and the cleaning process also poses safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a discharge device for a cement batching silo. This discharge device can evenly distribute the material in the silo and disperse the material to reduce the frequency of material blockage accidents. At the same time, it can also reduce the construction difficulty of the discharge device.

[0005] To achieve the above objectives, the present invention provides a discharge device for a cement batching silo, the discharge device comprising a plurality of cone hoppers located below the silo, and a plurality of discharge ports corresponding one-to-one with the cone hoppers and located below the cone hoppers;

[0006] The conical hopper is formed by a conical surface, an interpolation slope, and a trapezoidal surface. A reinforcing beam is provided between two adjacent conical hoppers. The lower port is located at the lower end of the conical hopper and is polygonal. The upper base of the trapezoidal surface coincides with the reinforcing beam, and the lower base of the trapezoidal surface coincides with the side of the lower port closest to the reinforcing beam. The lower side of the interpolation slope coincides with the remaining sides of the lower port. The top vertex of the interpolation slope is located at the outer edge of the silo, the upper base of the conical surface is located at the outer edge of the silo, and the lower vertex of the conical surface is located at the corner of the lower port.

[0007] The plane of the reinforcing beam intersects with the outer surface of the cone to form a reinforcing beam plane, and the reinforcing beam divides the reinforcing beam plane into multiple regions that correspond one-to-one with the cone.

[0008] The upper base edges of all the conical surfaces form the outer edge of the silo.

[0009] Preferably, a reinforcing plate is provided above the reinforcing beam to cover the connection between the reinforcing beam and the trapezoidal surface.

[0010] Preferably, the reinforcing plate is configured as a V-shaped structure, and the opening of the V-shaped structure engages with the upper end of the reinforcing beam.

[0011] Preferably, the diameter of the discharge port cross-section increases with the increase of the height of the discharge port;

[0012] The lower port of the cone hopper is located inside the discharge port.

[0013] Preferably, a resin liner is provided on the inner side of the cone.

[0014] The present invention also provides a method for designing the unloading device, the method comprising:

[0015] Step 1: Set the plane below the silo where the lower port is located, and draw the outer contour of the lower port. The outer contour of the lower port is a polygon, and the center of the outer contour of the lower port coincides with the center of the silo. Multiple lower ports 14 are located within the outer contour of the lower port.

[0016] Step 2: Create a conical surface between the outer contour of the silo and the lower port.

[0017] Step 3: Create a reinforcing beam plane and draw the reinforcing beam within the reinforcing beam plane;

[0018] Step 4: Form the interpolation inclined surface and trapezoidal surface based on the reinforcing beam and the lower port;

[0019] Step 5: Delete the redundant conical surfaces and design a discharge port for each of the lower ports.

[0020] Preferably, the cones are arranged side-by-side or in a matrix, and the lower port is rectangular.

[0021] Preferably, the outer contour of the lower port located on the same side of two adjacent lower ports is a straight line.

[0022] The intersection of the vertical plane of the reinforcing beam and the silo forms two dividing points, and a first triangle is formed by connecting the dividing points to the far ends of the two adjacent lower ports on the same side.

[0023] The two hypotenuses of the trapezoidal surface are located on the two first triangles respectively. The two opposite trapezoidal surfaces and the base of the first triangle form a second triangle. The second triangle is deleted from the first triangle to form the interpolation hypotenuse.

[0024] Preferably, the vertex of the interpolation slope that is not adjacent to the trapezoidal surface is set as the intersection of a vertical surface passing through the midpoint of the bottom edge of the interpolation slope and the silo.

[0025] Preferably, two cone-shaped hoppers are provided.

[0026] According to the above technical solution, the present invention divides the plane of the reinforcing beam into several regions by means of a reinforcing beam. By evenly distributing the area of ​​the reinforcing beam plane, the material in the silo is evenly distributed. Different regions within the reinforcing beam plane correspond one-to-one with the cones below, ensuring that the material in the silo is evenly distributed into multiple cones. This achieves the goal of evenly distributing material from the silo to the cones, thus enabling the production lines corresponding to these discharge ports to operate more efficiently.

[0027] Adjacent cones in the multiple cone hoppers are connected by reinforcing beams. These beams break up the falling material, effectively dispersing it so that it falls into the cones below and flows out through their respective discharge ports. During this process, large clumps of material are broken up by the impact of the reinforcing beams, thus preventing large pieces from clogging the discharge ports.

[0028] Setting the lower end of the cone bucket as a polygon enables the silo to be transformed from a circle to a square. This transformation allows the outer surface of the cone bucket to have more planar shapes, thereby reducing the proportion of the cone surface on the outer surface of the cone bucket and effectively reducing the construction difficulty of the unloading device.

[0029] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of a discharge device consisting of two cone buckets connected to a silo;

[0032] Figure 2 This is a front view of a discharge device containing two cone buckets, with the reinforcing beam connected to the silo positioned at a low position.

[0033] Figure 3 This is a front view of a discharge device containing two cone buckets, with the reinforcing beam connected to the silo positioned at a high position.

[0034] Figure 4 This is a left view of a discharge device containing two cone buckets connected to a silo;

[0035] Figure 5 It is a three-dimensional view of an unloading device with a reinforcing beam.

[0036] Figure 6 yes Figure 5 The left view;

[0037] Figure 7 It is a three-dimensional view of the unloading device including the interpolation ramp and the trapezoidal surface;

[0038] Figure 8 This is a top view of the unloading device with four cone-shaped buckets arranged in a matrix.

[0039] Figure 9 This is a top view of a discharge device with three cone-shaped buckets arranged side by side;

[0040] Figure 10 This is a top view of a discharge device with two conical buckets arranged side by side;

[0041] Figure 11 This is a top view of a discharge device with three cone hoppers and two reinforcing beams;

[0042] Figure 12 yes Figure 11 The view after the port is improved;

[0043] Figure 13 This is a top view of a discharge device with three cone hoppers and three reinforcing beams;

[0044] Figure 14 yes Figure 13 The view after the port is improved;

[0045] Figure 15 It is a top view of a discharge device with three randomly distributed cone hoppers and three reinforcing beams;

[0046] Figure 16 yes Figure 15 The view after the port is improved;

[0047] Figure 17 It is a top view of a discharge device with four randomly distributed cone buckets and two reinforcing beams;

[0048] Figure 18 yes Figure 17 The view after the port is improved;

[0049] Figure 19 It is a perspective view of a discharge device with two conical hoppers having a different interpolation ramp;

[0050] Figure 20 This is a comparison chart of weld lengths for different interpolation inclined planes and conical surfaces.

[0051] Explanation of reference numerals in the attached figures

[0052] 2. Feed port 11 cone surface

[0053] 12 Inclined surface 13 Trapezoidal surface

[0054] 31 Reinforcing beam 32 Reinforcing plate

[0055] 14 lower port 10 silos

[0056] 4. Lower port outer contour; 5. Reinforcing beam plane

[0057] 6. First triangle 7. Second triangle

[0058] 81 First weld 811 Second weld

[0059] 121 First interpolation bevel 82 Third weld

[0060] 821 Fourth weld, 122 Second interpolation bevel

[0061] 83 Fifth weld, 831 Sixth weld

[0062] 123 Third interpolation inclined plane 41 Bottom edge

[0063] 9-silo deployment line Detailed Implementation

[0064] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0065] In this invention, unless otherwise stated, directional terms such as "below," "outer edge," "inner," "inner side," "upper end," "lower end," "same side," and "far end" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0066] refer to Figure 1-20 A discharge device for a cement batching silo, the discharge device comprising a plurality of cone hoppers located below the silo 10, and a plurality of discharge ports 2 corresponding one-to-one with the cone hoppers and located below the cone hoppers;

[0067] The cone-shaped hopper is formed by a cone surface 11, an interpolation inclined surface 12, and a trapezoidal surface 13. A reinforcing beam 31 is provided between two adjacent cone-shaped hoppers. The lower port 14 is located at the lower end of the cone-shaped hopper and is set as a polygon. The upper base of the trapezoidal surface 13 coincides with the reinforcing beam 31, and the lower base of the trapezoidal surface 13 coincides with the side of the lower port 14 closest to the reinforcing beam 31. The lower side of the interpolation inclined surface 12 coincides with the other sides of the lower port 14. The top vertex of the interpolation inclined surface 12 is located at the outer edge of the silo 10. The upper base of the cone surface 11 is located at the outer edge of the silo 10, and the lower vertex of the cone surface 11 is located at the corner of the lower port 14.

[0068] The plane containing the reinforcing beam 31 intersects with the outer surface of the cone to form the reinforcing beam plane 5. The reinforcing beam 31 divides the reinforcing beam plane 5 into multiple regions that correspond one-to-one with the cone.

[0069] The upper bottom edges of all the conical surfaces 11 form the outer edge of the silo 10.

[0070] Through the implementation of the above technical solution, the material in the silo 10 is distributed to different cone hoppers in the reinforcing beam plane 5 by the reinforcing beam 31. The reinforcing beam 31 divides the reinforcing beam plane 5 into several areas, and each area is the receiving port of the cone hopper below it. The material falling from the silo 10 falls into the corresponding cone hopper through the receiving port.

[0071] By distributing the material inlet area in this way, the material in the silo 10 on the same cross section can be evenly distributed, thereby achieving the goal of evenly distributing the material in the silo 10.

[0072] Setting the lower port 14 as a polygon allows for the transformation of the conical hopper from square to round. Since the lower end of the silo 10 is circular and the outer perimeter of the lower port 14 is polygonal, a triangular interpolation slope 12 can be extended from the edge of the lower port 14 to a point on the outer edge of the silo 10. This interpolation slope 12 can replace the conical surface 11 located at that position, reducing the area ratio of the conical surface 11 on the outer surface of the hopper. This avoids the need for manufacturing a large-area conical hopper 11 and also reduces the installation difficulty of the unloading device.

[0073] A reinforcing beam 31 is provided between two adjacent cone buckets. Multiple reinforcing beams 31 are provided in the unloading device of multiple cone buckets. After the material falls from the silo 10, large pieces of material will be broken into smaller pieces by impact from these reinforcing beams 31 and fall into different cone buckets.

[0074] Setting these reinforcing beams 31 as high-strength I-beams can also improve the strength of the cones on both sides and increase the stability of the cones during use.

[0075] Therefore, this application transforms the cone hopper from a round shape to a square shape, reducing the construction difficulty of the unloading device. By appropriately setting the reinforcing beam 31 within the plane 5 of the reinforcing beam, materials can be evenly distributed into multiple cone hoppers; the reinforcing beam 31 can also break up and disperse large pieces of material, and by setting the reinforcing beam 31 with greater strength, the structural strength of the two cone hoppers can also be improved.

[0076] In this embodiment, preferably, a reinforcing plate 32 is provided above the reinforcing beam 31 to cover the connection between the reinforcing beam 31 and the trapezoidal surface 13.

[0077] In the actual manufacturing process, the reinforcing beam 31 is connected to the trapezoidal surfaces 13 on both sides by welding. Therefore, there will be welds between the reinforcing beam 31 and the trapezoidal surfaces 13 on both sides. The welds are placed inside the cone hopper, and materials will continuously come into contact with and rub against the welds during the falling process. Over the years, the strength and reliability of the welds will be affected. Therefore, a reinforcing plate 32 is designed to cover the reinforcing beam 31. While covering the reinforcing beam 31, the welds between the reinforcing beam 31 and the trapezoidal surfaces 13 must also be covered. In this way, the welds on both sides of the reinforcing beam 31 are protected.

[0078] In this embodiment, preferably, the reinforcing plate 32 is configured as a V-shaped structure, and the opening of the V-shaped structure engages with the upper end of the reinforcing beam 31.

[0079] By setting the reinforcing plate 32 as a V-shaped structure, when a large piece of material falls, because its top is relatively pointed and its surface area is smaller than that of the reinforcing beam 31, the reinforcing plate 32 can provide a greater impact force at the moment the large piece of material hits the top of the reinforcing plate 32, thereby achieving a better effect of breaking up the large piece of material.

[0080] In this embodiment, preferably, the diameter of the discharge port 2 cross-section increases with the increase of the height of the discharge port 2;

[0081] The lower port 14 of the cone hopper is located inside the discharge port 2.

[0082] The discharge port 2 is a funnel-shaped structure. The lower end of the cone extends into the interior of the discharge port 2. The cross-sectional diameter of the discharge port 2 at the same height as the cone will be larger than that of the cone. That is, after the material leaves the cone, it will fall into a larger space. During this process, the materials that were originally stuck together are crowded together in the cone. The suddenly expanded space after leaving the cone will give the materials that are stuck together some room to expand. Then they will enter the discharge port 2 and be impacted by the side wall of the discharge port 2. This causes the materials that are stuck together to be broken up by the impact force of the discharge port 2.

[0083] Therefore, this configuration allows the unloading device to better disperse materials.

[0084] In this embodiment, preferably, a resin liner is provided on the inner side of the cone.

[0085] The resin liner inside the cone hopper can further reduce the risk of material sticking and clumping.

[0086] A method for designing a discharge device, the method comprising:

[0087] Step 1: Set the plane where the lower port 14 is located below the silo 10, and draw the outer contour 4 of the lower port. The outer contour 4 of the lower port is a polygon, and multiple lower ports 14 are located within the outer contour 4 of the lower port.

[0088] Step 2: Shape a conical surface 11 between the silo 10 and the outer contour 4 of the lower port.

[0089] Step 3: Create the reinforcing beam plane 5 and draw the reinforcing beam 31 within the reinforcing beam plane 5;

[0090] Step 4: Based on the reinforcing beam 31 and the lower port 14, form the interpolation inclined surface 12 and the trapezoidal surface 13;

[0091] Step 5: Delete the redundant conical surfaces 11 and design a discharge port 2 for each lower port.

[0092] When designing a discharge device using 3D drawing software, the silo 10 needs to be drawn first, and multiple lower ports 14 need to be arranged below the silo 10 according to actual needs. At this time, the height position of the lower ports 14 relative to the silo 10 needs to be considered. At a suitable height position for the lower ports 14, a horizontal plane is created by translation to draw the lower ports 14.

[0093] Draw the lower port 14 in the plane containing it. At this point, the shape of the lower port 14 is only for designing the outer contour 4 of the lower port, and is not the final shape of the lower port 14. Preferably, the shape of the lower port 14 is designed as a rectangle. The center position of the lower port 14 corresponds to the center position of the conveyor line below the lower port 14. Setting the center position of the lower port 14 as the center of the rectangle ensures that the center position of the lower port 14 will always be within the shape of the lower port 14 when the shape of the lower port 14 is modified later, so as to avoid the actual position of the lower port 14 deviating from the conveyor line below when the shape of the lower port 14 is modified later. After all the lower ports 14 are drawn, the outer contour 4 of the lower port can be outlined according to the outer edges of these lower ports 14. Preferably, the outer contour 4 of the lower port has as few sides as possible, while including as many lower ports 14 as possible within the outer contour 4 of the lower port.

[0094] A conical surface 11 is formed between the silo 10 and the outer contour 4 of the lower port. This conical surface 11 can transform the round shape of the silo 10 into a square shape. This conical surface 11 is also the basis for the outer contour of multiple cone-shaped hoppers.

[0095] Because of the different characteristics of materials, their degree of agglomeration is also different. Therefore, the height of the reinforcing beam 31 can be adjusted to accommodate materials with different characteristics. When the material is highly viscous, the height of the reinforcing beam 31 relative to the discharge port 2 can be increased to reduce the probability of material sticking to the partition plates of the two discharge ports. When the material flow is good, the height of the reinforcing beam at the fork can be reduced to improve the uniformity of material dispersion in the two cones and to appropriately increase the material storage capacity.

[0096] Based on the characteristics of the material used in the unloading device, the height of the reinforcing beam 31 relative to the lower port 14 is determined, and a reinforcing beam plane 5 is created in the file. That is, the horizontal plane is translated to the height corresponding to the reinforcing beam 31, and the translated horizontal plane intersects with the conical surface 11 to form the reinforcing beam plane 5. The reinforcing beam 31 is located within this reinforcing beam plane 5.

[0097] like Figure 8 As shown, taking a discharge device with four cones arranged in a matrix as an example, after the plane 5 of the reinforcing beam is determined, the center of the four cones coincides with the center of the silo 10. Two reinforcing beams 31 perpendicular to each other are made through this center position. In order to ensure that the discharge device can distribute materials equally to each cone, the reinforcing beams 31 are set in the middle position of the two cones.

[0098] like Figure 9-10 As shown, the unloading device is equipped with multiple cone buckets arranged side by side. At this time, the reinforcing beam 31 is set between two adjacent cone buckets and is located in the middle of the two adjacent cone buckets.

[0099] like Figure 17As shown, the unloading device has four randomly distributed cone hoppers. The lower port 14 is rectangular, and the four outermost vertices are connected sequentially to form a quadrilateral, which is the outer contour 4 of the lower port. Connecting the center points of the two opposite sides of the outer contour 4 of the lower port yields two line segments. The intersection of these two line segments can be approximated as the center point of the outer contour 4 of the lower port. This center point needs to coincide with the center point of the silo 10. Extending the two line segments to both ends to intersect the boundary of the reinforcing beam plane 5 yields two reinforcing beams 31. The two intersecting reinforcing beams 31 divide the upper surface of the reinforcing beam plane 5 into four receiving ports, with each cone hopper corresponding to one receiving port. The areas of the four receiving ports are approximately equal, thus enabling nearly even distribution of the material in the silo 10 on the reinforcing beam plane 5.

[0100] Typically, the number of cone hoppers in the unloading device will not exceed four.

[0101] like Figure 11 and 15 As shown, the unloading device has three cones that are not distributed in a straight line, so the centers of the three cones can form a triangle. In this case, the shape of the lower port 14 can be set as a polygon, making it easier to change the shape of the cones from round to square. Preferably, the shape of the lower port 14 is set as a rectangle or a triangle, and the outer contour 4 of the lower port is preferably set as a triangle.

[0102] In this way, the silo 10 is shaped into a conical surface 11 facing the outer contour 4 of the lower port, and then the reinforcing beam plane 5 is created by translation.

[0103] like Figure 11 As shown, two reinforcing beams 31 can be set within the reinforcing beam plane 5. The two reinforcing beams 31 divide the reinforcing beam plane 5 into three areas as evenly as possible, so that the material in the silo can be evenly distributed into the three cone hoppers below.

[0104] After the reinforcing beam 31 is installed, the shape of the lower port 14 needs to be redesigned, such as... Figure 12 As shown. Since two sides at different heights must be parallel to ensure they are in the same plane, the side of the lower port 14 closest to the reinforcing beam 31 needs to be parallel to the reinforcing beam 31. This facilitates the setting of the trapezoidal surface 13 and ensures that the trapezoidal surface 13 is planar. The trapezoidal surface 13 can be drawn by correspondingly connecting the reinforcing beam 31 and the two ends of the side of the lower port 1 closest to the reinforcing beam 31. By doing so, setting the side of all lower ports 14 closest to a certain reinforcing beam 31 to be parallel to the reinforcing beam 31, a total of four trapezoidal surfaces 13 can be drawn.

[0105] The portion between two adjacent trapezoidal surfaces 13 and conical surfaces 11 can be deleted, thus completing the initial shape of the three conical hoppers.

[0106] At this point, the outer surface of the cone still has many conical surfaces 11. Due to the difficulty in manufacturing these conical surfaces and the inability to guarantee manufacturing precision, the area ratio of the conical surfaces 11 is relatively large, making the construction of the unloading device very difficult. Next, the area ratio of the conical surfaces 11 on the outer surface of the cone can be further reduced by setting interpolation ramps 12. At any point on the outer edge of the silo 10, triangular interpolation ramps 12 are constructed along the remaining side of the downward port 14. These interpolation ramps 12 replace the conical surfaces 11 at the corresponding positions, thereby reducing the area ratio of the conical surfaces 11 on the outer surface of the cone.

[0107] As can be seen from the above steps, when designing the shape of the lower port 14, the side of the lower port 14 can be designed to be as large as possible according to actual production needs, so as to obtain a larger interpolation slope 12 and minimize the area ratio of the cone surface 11 on the outer surface of the cone bucket.

[0108] like Figure 13 and 15 As shown, the three lower ports 14 of the unloading device are randomly distributed to form a random triangle. Besides dividing the reinforcing beam plane 5 into three regions by setting two reinforcing beams 31, it is also possible to divide the reinforcing beam plane 5 into three regions by setting three reinforcing beams 31. Similarly, the three reinforcing beams 31 are designed based on the premise of dividing the reinforcing beam plane 5 into three regions as much as possible. Then the shape of the lower ports 14 is modified, as follows... Figure 14 and 16 The side opposite to the reinforcing beam 31 is parallel to the reinforcing beam 31. Finally, a triangular interpolation slope 12 is formed on the outer surface of the cone using the lower port 14, thus completing the transformation of the cone from square to round and minimizing the area ratio of the cone surface 11 on the outer surface of the cone.

[0109] When multiple cones are randomly distributed, the lower port 14 can be designed as a rectangle. By connecting the outer vertices of multiple lower ports 14, an irregular polygonal lower port outer contour 4 is formed. After the lower port outer contour 4 is formed, the outer periphery of the silo 12 can be shaped into a cone surface 11 from the lower port outer contour 4. The reinforcing beam plane 5 can be obtained by translation. The reinforcing beam 31 is designed based on the premise of dividing the reinforcing beam plane 5 into regions with the same number of cones as possible.

[0110] like Figure 18 As shown, the unloading device includes four randomly distributed lower ports 14. After the position of the reinforcing beam 31 is determined, the edges of the lower ports 14 opposite to the reinforcing beam 31 are modified to make them parallel to the lower ports 14. The edges that are not parallel to the reinforcing beam 31 are modified to be consistent with the outer contour 4 of the lower ports. After all the edges of the lower ports 14 are modified, the trapezoidal surface 13 and the interpolation inclined surface 12 are drawn. The redundant conical surfaces 11 are deleted, and the design of the conical hopper of the unloading device is completed.

[0111] It is worth mentioning that when the unloading device includes four randomly distributed lower ports 14, in addition to designing two reinforcing beams 31 to divide the area of ​​the reinforcing beam plane 5 equally, it is also preferable to design four reinforcing beams 31 to divide the area of ​​the reinforcing beam plane 5 equally.

[0112] Based on the distribution status of lower port 14, such as Figure 8 , 13 As shown in Figures 15 and 17, the multiple reinforcing beams 31 can intersect at a point inside the silo 10 near the center of the silo 10, or they can be arranged as follows: Figure 12 As shown, multiple reinforcing beams 31 intersect at a point on the outer edge of the reinforcing beam plane 5, or even as... Figure 9 As shown, the multiple reinforcing beams 31 do not intersect. Therefore, there are no fixed requirements for the positional relationship of the multiple reinforcing beams 31. However, the multiple reinforcing beams 31 need to distribute the area of ​​the reinforcing beam plane 5 evenly and correspond to different cones.

[0113] Corresponding to the shape of the lower port 14, the feed port 2 is designed.

[0114] In this embodiment, preferably, the cones are arranged side by side or in a matrix, and the lower port 14 is rectangular.

[0115] like Figure 8-10 As shown, when the cones are set to be evenly distributed side by side or in a matrix, the lower port 14 is set to a rectangle, which is advantageous for drawing the shape of the outer contour 4 of the lower port. Moreover, compared with the case of random distribution of the lower port 14, the cones that are evenly distributed side by side or in a matrix are more convenient for designing the position of the reinforcing beam 31, and the shapes of the cone surface 11, trapezoidal surface 13 and interpolation inclined surface 12 are also more regular.

[0116] Setting the cones to be arranged side by side or in a matrix distribution is beneficial for the uniform distribution of materials in the silo 10 to different cones.

[0117] When the lower port 14 is designed as a rectangle, the shape of the feed port 2 will also be easier to design and manufacture.

[0118] In this embodiment, preferably, the outer contour 4 of the lower port located on the same side of two adjacent lower ports 14 is a straight line.

[0119] Two dividing points are formed by the intersection of the vertical plane of the centerline of the reinforcing beam 31 and the silo. A first triangle 6 is formed by connecting the dividing points to the far ends of the two adjacent lower ports 14 on the same side.

[0120] The two hypotenuses of the trapezoidal surface 13 are located on the two first triangles 6 respectively. The two opposite trapezoidal surfaces 13 and the base of the first triangle 6 form a second triangle 7. The second triangle 7 is deleted from the first triangle 6 to form the interpolation hypotenuse 12.

[0121] The outer contour 4 of the lower port located on the same side of the two adjacent lower ports 14 is a straight line. Thus, a triangle can be drawn from any point on the silo 10 to the straight line. Preferably, the point selected on the silo 10 is the intersection of the vertical plane of the reinforcing beam 31 and the silo 10, because this point is usually easy to locate and obtain, and this point is usually located near the center of the lower straight line, so that the second triangle 7 must be located within the first triangle 6, which facilitates the subsequent design work.

[0122] The interpolation ramps 12 obtained in this way are located in the two cones, avoiding the need to make two separate interpolation ramps 12 for each cone. If two interpolation ramps 12 were designed for each cone, they would need to be made separately, and a total of four 2×2 welds would need to be formed between them and the cone surface 11, which would increase the amount of construction work. However, with the current solution, it is only necessary to weld to the two cone surfaces of the two cones in a total of 1×2, which greatly reduces the construction difficulty.

[0123] Preferably, the vertex of the interpolation slope 12, which is not adjacent to the trapezoidal surface 13, is set as the intersection of a vertical surface passing through the midpoint of the bottom edge of the interpolation slope 12 and the silo.

[0124] This design minimizes the weld length between the interpolation slope 12 and the conical surface 11.

[0125] Assuming the outer edge of silo 10 unfolds into a straight line called silo unfolding line 9, then the height between silo unfolding line 9 and the bottom edge 41 of interpolation slope 12 remains constant. Figure 20 As shown, the first weld 81 and the second weld 811 form an isosceles triangle, specifically the first interpolation slope 121, formed by the intersection of a vertical plane passing through the midpoint of the base 41 and the silo 10, with the vertex of the interpolation slope 12. The third weld 82 and the fourth weld 821 form a second interpolation slope 122, with its vertex slightly beyond the aforementioned intersection point. The fifth weld 83 and the sixth weld 831 form a third interpolation slope 123, with its vertex more than a certain distance beyond the aforementioned intersection point.

[0126] exist Figure 20 In the diagram, a circle is drawn with the vertex of the first interpolation slope 121 as the center and the second weld 811 as the radius. Extending this circle in the opposite direction, the first weld 81 intersects this circle to form a straight line. The length of this straight line is equal to the sum of the lengths of the first and second welds 811, which is the weld length between the first interpolation slope 121 and the conical surface 11. Similarly, we can obtain the weld lengths between the second and third interpolation slopes 122 and the conical surface 11 in the diagram. It is easy to see from the diagram that the weld length of the first interpolation slope 121 is the shortest. Furthermore, according to... Figure 20 It can also be easily proven that the weld length of the first interpolation slope 121 is the shortest.

[0127] In this embodiment, preferably, two cone-shaped hoppers are provided.

[0128] The two conical buckets arranged side by side represent the most common configuration in practice.

[0129] This application has been used in a cement plant. After applying this technology, the material unloading rate in the silo is high, basically reaching 90%. That is, 90% of the material in the entire silo can be unloaded to the production line. At the same time, it reduces the risk of material accumulation and blockage at the discharge port during the production process. Since the plant was put into operation in August 2022, there has been no problem with material unloading or accumulation at the discharge port. It has greatly reduced the labor intensity of personnel, and the feedback from the field is good.

[0130] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0131] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0132] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A discharge device for a cement batching silo, characterized in that, The unloading device includes multiple cone buckets located below the silo (10), and multiple discharge ports (2) corresponding to each cone bucket and located below the cone bucket. The cone-shaped hopper is formed by a cone surface (11), an interpolation inclined surface (12), and a trapezoidal surface (13). A reinforcing beam (31) is provided between two adjacent cone-shaped hoppers. The lower port (14) is located at the lower end of the cone-shaped hopper and is set as a polygon. The upper base of the trapezoidal surface (13) coincides with the reinforcing beam (31). The lower base of the trapezoidal surface (13) coincides with the side of the lower port (14) that is close to the reinforcing beam (31). The lower side of the interpolation inclined surface (12) coincides with the remaining side of the lower port (14). The vertex of the top of the interpolation inclined surface (12) is located at the outer edge of the silo (10). The upper base of the cone surface (11) is located at the outer edge of the silo (10). The vertex of the lower end of the cone surface (11) is located at the corner of the lower port (14). The plane where the reinforcing beam (31) is located intersects with the outer surface of the cone to form a reinforcing beam plane (5). The reinforcing beam (31) divides the reinforcing beam plane (5) into multiple regions that correspond one-to-one with the cone. The upper bottom edges of all the conical surfaces (11) form the outer edge of the silo (10).

2. The unloading device according to claim 1, characterized in that, A reinforcing plate (32) is provided above the reinforcing beam (31) to cover the connection between the reinforcing beam (31) and the trapezoidal surface (13).

3. The unloading device according to claim 2, characterized in that, The reinforcing plate (32) is configured as a V-shaped structure, and the opening of the V-shaped structure is engaged with the upper end of the reinforcing beam (31).

4. The unloading device according to claim 1, characterized in that, The diameter of the discharge port (2) cross section increases with the increase of the height of the discharge port (2); The lower port (14) of the cone hopper is located inside the discharge port (2).

5. The unloading device according to any one of claims 1-4, characterized in that, The inner side of the cone is provided with a resin liner.

6. A method for designing the unloading device according to claim 1, characterized in that, The method includes: Step 1: Set the plane where the lower port (14) is located below the silo (10), and draw the outer contour (4) of the lower port. The outer contour (4) of the lower port is a polygon. The center of the outer contour (4) of the lower port coincides with the center of the silo (10). Multiple lower ports (14) are located inside the outer contour (4) of the lower port. Step 2: Create a conical surface (11) between the silo and the outer contour (4) of the lower port. Step 3: Create the reinforcing beam plane (5) and draw the reinforcing beam (31) within the reinforcing beam plane (5); Step 4: Based on the reinforcing beam (31) and the lower port (14), form the interpolation inclined surface (12) and the trapezoidal surface (13); Step 5: Delete the redundant conical surfaces (11) and design a discharge port (2) for each of the lower ports (14).

7. The method according to claim 6, characterized in that, The cones are arranged in parallel or in a matrix, and the lower port (14) is set as a rectangle.

8. The method according to claim 7, characterized in that, The outer contour (4) of the lower port located on the same side of the two adjacent lower ports (14) is a straight line. Two dividing points are formed by the intersection of the vertical plane of the reinforcing beam (31) and the silo (10), and a first triangle (6) is formed by connecting the dividing points to the far ends of the two adjacent lower ports (14) on the same side. The two hypotenuses of the trapezoidal surface (13) are located on the two first triangles (6) respectively. The two opposite trapezoidal surfaces (13) and the base of the first triangle (6) form a second triangle (7). The second triangle (7) is deleted from the first triangle (6) to form the interpolation hypotenuse (12).

9. The method according to claim 8, characterized in that, The vertex of the interpolation slope (12) that is not adjacent to the trapezoidal surface (13) is set as the intersection of the vertical surface passing through the midpoint of the bottom edge (41) of the interpolation slope (12) and the silo (10).

10. The method according to any one of claims 6-9, characterized in that, Two cone-shaped hoppers are provided.

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