Drying and grinding equipment for limestone mineral powder

Abstract

The invention belongs to the technical field of drying machinery, and particularly relates to drying and grinding equipment for limestone mineral powder. The problem that when caked mineral powder is dried, due to the fact that outer-layer mineral powder is firstly heated and rapidly dried and caked, a heat insulation layer can be formed, heat is prevented from being transmitted inwards, and the internal mineral powder cannot be fully dried is solved. Comprising a bearing frame, the bearing frame is rotationally connected with a drying cylinder, the bearing frame is provided with a power module used for driving the drying cylinder to rotate, the drying cylinder is rotationally connected with a circular truncated cone cylinder through a mounting frame, the bearing frame is rotationally connected with a connecting cylinder, and the connecting cylinder is fixedly connected with a first fixing shell; and the first fixed shell is fixedly connected with the circular truncated cone cylinder. According to the mineral powder drying device, the circular truncated cone cylinder is matched with the drying cylinder, mineral powder blocks of different sizes are intercepted and dried when mineral powder materials are dried, and after interception, the circular truncated cone cylinder and the drying cylinder rotate reversely to jointly grind the mineral powder blocks, so that the drying effect of the mineral powder materials is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of drying machinery, and in particular relates to drying and grinding equipment for limestone ore powder. Background Art

[0002] Mineral powder generally refers to stone powder and its substitutes that meet engineering requirements. It is the product of ore crushing and is the first and most critical step in ore processing and smelting. Mineral powder typically contains a certain amount of water. A high moisture content can easily cause particles to stick together and clump. To ensure proper use, mineral powder must be dried.

[0003] The existing technology for drying agglomerated mineral powder in rotary kilns (or rotary kilns) suffers from a significant drawback: relying solely on the kiln's rotation to turn the material causes the outer layer of mineral powder to heat first, rapidly drying and agglomerating. This agglomerate layer forms an insulating layer, hindering heat transfer to the interior. Furthermore, the rotational turning process makes it difficult to effectively break up this outer layer of agglomerates, preventing the mineral powder inside from being fully dried. This problem not only reduces the final drying effect but also significantly limits overall drying efficiency. Summary of the Invention

[0004] In order to overcome the above problems, the present invention provides a drying and grinding device for limestone powder.

[0005] The technical solution adopted by the present invention is: the drying and grinding equipment for limestone mineral powder includes a supporting frame, a drying cylinder is rotatably connected to the supporting frame, a power module for driving the drying cylinder to rotate is provided on the supporting frame, the drying cylinder is rotatably connected to a conical cylinder through a mounting frame, the supporting frame is rotatably connected to a connecting cylinder, the connecting cylinder is fixedly connected to a first fixed shell, and the first fixed shell is fixedly connected to the conical cylinder.

[0006] Furthermore, the drying drum is provided with material storage troughs distributed in a circumferential array, and the depth of the material storage troughs gradually increases from one side away from the first fixed shell to the other side.

[0007] Furthermore, evenly distributed first inclined plates are fixedly connected to the truncated cone cylinder, and the evenly distributed first inclined plates are distributed in a spiral shape on the outer side of the truncated cone cylinder.

[0008] Furthermore, the conical cylinder is provided with evenly distributed second inclined plates, the first inclined plates and the second inclined plates are both in contact with the drying cylinder, the evenly distributed second inclined plates are spirally distributed on the outside of the conical cylinder, and the first inclined plates and the second inclined plates are staggered.

[0009] Furthermore, the truncated cone cylinder is provided with feeding plates distributed in a circumferential array, the feeding plates are spiral-shaped, and the rotation direction of the feeding plates is opposite to the rotation direction of the spiral formed by the evenly distributed first inclined plates.

[0010] Furthermore, a rotating cylinder is rotatably connected inside the conical cylinder, and evenly distributed connecting rods are fixed to the rotating cylinder. The connecting rods correspond to the second inclined plates one by one, and the connecting rods are fixed to the corresponding second inclined plates. The connecting rods are slidably connected to the conical cylinder.

[0011] Furthermore, the rotating cylinder is fixed with a fixing rod, the fixing rod is slidably connected with a force rod, an inclined groove is provided in the fixing rod, a protrusion sliding in the inclined groove is provided on the force rod, and a spring is provided between the force rod and the fixing rod.

[0012] Furthermore, the truncated cone cylinder is provided with evenly distributed through holes, and sliding blocks are slidably connected in the through holes on the truncated cone cylinder.

[0013] Furthermore, the conical cylinder is fixed with a second fixed shell distributed in a circumferential array and a liquid storage shell distributed in a circumferential array, the through hole on the conical cylinder is connected to the corresponding second fixed shell, the second fixed shell and the liquid storage shell are both provided with a transmission medium, the second fixed shell is connected to the adjacent liquid storage shell through a pipeline, a piston rod is slidably connected in the liquid storage shell, and a return spring is provided between the piston rod and the liquid storage shell.

[0014] Furthermore, the first fixed shell is rotatably connected to a fixed cylinder, the fixed cylinder is fixed to a fixed frame, the fixed frame is fixed to a fixed ring, the piston rod is slidably connected to the fixed ring, the fixed ring is fixed to a limiting member, and the limiting member is used to squeeze the piston rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention cooperates with the conical cylinder and the drying cylinder to intercept and dry mineral powder blocks of different sizes when drying the mineral powder material, and after interception, the conical cylinder and the drying cylinder rotate in opposite directions to grind the mineral powder blocks together, thereby ensuring the drying effect of the mineral powder material; through the relative movement between the second inclined plate and the adjacent first inclined plate, the first inclined plate and the adjacent second inclined plate perform a short impact extrusion on the mineral powder blocks therebetween, assisting in breaking the hardened shell formed after the external drying of the mineral powder blocks, accelerating the drying and grinding process of the mineral powder blocks, and the short impact crushing reduces the probability of over-extrusion of the moist mineral powder inside the mineral powder blocks, thereby ensuring subsequent smooth drying; through the cooperation of the piston rod and the limit member, after the adjacent limit member rotates to the mineral powder block gathering area, the limit member is controlled to extend regularly, and after the sliding block is extended, it briefly knocks the adjacent mineral powder blocks as it rotates, thereby accelerating the shedding of the dried portion of the mineral powder block surface, thereby improving the drying and grinding efficiency of the mineral powder blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the internal structure of the drying drum of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the storage tank of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the frustum cylinder and the feeding plate of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the first inclined plate and the second inclined plate of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner structure of the frustum cylinder of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating cylinder and the connecting rod of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing frame and the fixing ring of the present invention.

[0024] Figure 9 It is a three-dimensional structural cross-sectional view of the fixing rod and the force applying rod of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the sliding block and the second fixed shell of the present invention.

[0026] Figure 11 This is an exploded view of the fixing ring and the limiting member of the present invention.

[0027] Explanation of the serial numbers in the figure: 1-carrying frame, 2-drying cylinder, 201-storage trough, 3-cone cylinder, 4-connecting cylinder, 5-first fixed shell, 6-first inclined plate, 7-second inclined plate, 8-feeding plate, 9-rotating cylinder, 10-connecting rod, 11-fixed rod, 12-force rod, 13-inclined groove, 14-sliding block, 15-second fixed shell, 16-liquid storage shell, 17-piston rod, 18-reset spring, 19-fixed cylinder, 20-fixed frame, 21-fixed ring, 22-limiting member. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0029] Example 1 This embodiment discloses a drying and grinding device for limestone powder, which is used to solve the problem of insufficient drying caused by moisture and agglomeration of the powder.

[0030] The specific structure and connection relationship of the drying and grinding equipment are as follows: like Figures 1 to 7 As shown, the drying and grinding equipment includes a carrier 1, a drying drum 2 is rotatably connected to the carrier 1, and a heating plate is provided in the drying drum 2. Initially, the carrier 1 is tilted with the left lower and the right higher to ensure that the mineral powder moves normally when the drying drum 2 rotates. A circumferential array of storage tanks 201 is provided in the drying drum 2, so that the drying drum 2 stores part of the mineral powder when it rotates, so that the mineral powder in the storage tank 201 is spilled after it rotates to the upper side, thereby accelerating the drying process of the mineral powder. The depth of the storage tank 201 gradually deepens from right to left, that is, the mineral powder on the right side is gradually reduced. There are many large mineral powder blocks in the powder material, and the mineral powder enters the gaps around the large mineral powder blocks to act as a "heat conducting medium" to help improve the drying effect. There is more mineral powder in the mineral powder material on the left side, and the deeper storage tank 201 can store more mineral powder, thereby speeding up the mineral powder drying process. A power module for driving the drying cylinder 2 to rotate is provided on the carrier 1. The drying cylinder 2 is connected to the conical cylinder 3 through the mounting frame. A heating plate is also provided in the conical cylinder 3. The carrier 1 is connected to the connecting cylinder 4 in rotation. The part of the connecting cylinder 4 located outside the carrier 1 is connected to the external power. The connecting cylinder 4 A first fixed shell 5 fixed to the conical cylinder 3 is fixed, and there is a gap between the first fixed shell 5 and the drying cylinder 2. A conical grinding piece is sleeved on the outer side of the first fixed shell 5 and can be replaced according to needs. The conical cylinder 3 is fixed with uniformly distributed first inclined plates 6. The shapes of the first inclined plates 6 are different. The uniformly distributed first inclined plates 6 are spirally distributed on the outer side of the conical cylinder 3. The conical cylinder 3 is provided with uniformly distributed second inclined plates 7. The shapes of the second inclined plates 7 are different. The first inclined plates 6 and the second inclined plates 7 are both in contact with the drying cylinder 2 and are in contact with each other. There is a gap between two adjacent first inclined plates 6 and two adjacent second inclined plates 7. The evenly distributed second inclined plates 7 are distributed in a spiral shape on the outside of the conical cylinder 3, and the spiral structure composed of all the first inclined plates 6 and the spiral structure composed of all the second inclined plates 7 are staggered. The conical cylinder 3 is provided with feeding plates 8 distributed in a circumferential array. The feeding plates 8 are spiral, and the rotation direction of the feeding plates 8 is opposite to the rotation direction of the spiral composed of the evenly distributed first inclined plates 6, so as to force feeding between the first fixed shell 5 and the drying cylinder 2 when the conical cylinder 3 rotates.

[0031] like Figures 6 to 9As shown, a rotating cylinder 9 is rotatably connected inside the conical cylinder 3, and connecting rods 10 are evenly distributed fixed on the rotating cylinder 9. The connecting rods 10 are also spirally distributed on the rotating cylinder 9, and the connecting rods 10 correspond one to one with the second inclined plates 7. The connecting rods 10 are fixed to the corresponding second inclined plates 7. An arc-shaped sliding groove distributed in a spiral manner is provided on the conical cylinder 3, and the connecting rods 10 slide in the adjacent arc-shaped sliding grooves on the conical cylinder 3. A fixed rod 11 is fixed to the left side of the rotating cylinder 9, and the fixed rod 11 is slidably connected to the force rod 12. An inclined groove 13 is provided in the fixed rod 11, and a protrusion sliding in the inclined groove 13 is provided on the force rod 12. A spring is provided between the force rod 12 and the fixed rod 11, and the spring is fixed to the fixed rod 11 and contacts the force rod 12.

[0032] The working process of the drying and grinding equipment in this embodiment is as follows: Preparation process: First, place the carrier 1 with the left side lower and the right side higher. After placement, connect the force rod 12 to the external power (the external power can drive the force rod 12 to move left and right), then connect the device to the power supply, and the preparation work is completed.

[0033] Working process: the user gradually adds the required dried mineral powder into the drying drum 2 through the feeding port on the right side of the carrier 1 in a timely and quantitative manner. After the agglomerated mineral powder (hereinafter referred to as mineral powder block) and the unagglomerated mineral powder enter the drying drum 2 together, the power module is started to drive the drying drum 2 to rotate (clockwise from left to right). With the rotation of the drying drum 2 and the influence of gravity, the mineral powder blocks and mineral powder gradually move to the left. In this process, the drying drum 2 heats and dries the mineral powder blocks and mineral powder (hereinafter referred to as mineral powder material) through its internal heating plate. The external power drives the first fixed shell 5 and the conical drum 3 to rotate together (counterclockwise from left to right) through the connecting drum 4, and the rotation direction of the conical drum 3 is opposite to that of the drying drum 2. As the mineral powder gradually moves to the left, the space between the drying cylinder 2 and the conical cylinder 3 gradually decreases. During this process, if the mineral powder block is large and difficult to move to the left, the drying cylinder 2 and the conical cylinder 3 rotate in opposite directions together to grind the mineral powder block, and at the same time, the drying cylinder 2 and the conical cylinder 3 heat and dry the mineral powder block together. In this way, mineral powder blocks of different sizes in the mineral powder are "stuck" at different positions, while the remaining mineral powder in the mineral powder continues to move to the left and is dried and ground. Through the cooperation of the conical cylinder 3 and the drying cylinder 2, mineral powder blocks of different sizes are intercepted and dried when the mineral powder is dried, and after interception, the conical cylinder 3 and the drying cylinder 2 rotate in opposite directions to grind the mineral powder blocks together, thereby ensuring the drying effect of the mineral powder.

[0034] During the rotation of the conical cylinder 3, the conical cylinder 3 drives the first inclined plate 6 and the second inclined plate 7 thereon to rotate together, thereby pushing the mineral powder to move to the right. Since the two adjacent second inclined plates 6 (or the two adjacent second inclined plates 7) are not directly connected (that is, there is a gap), the mineral powder is synchronously slowed down in the process of moving to the left (that is, the time for the mineral powder to move to the left is extended to increase the drying time), and the mineral powder is not moved all to the right. In the long run, mineral powder blocks of different sizes are gathered at different positions. In order to prevent the material from getting stuck, the user controls the external power to drive the force rod 12 to move to the right at a fixed time, and the protrusion on the force rod 12 is in the inclined groove 13. Inward sliding, so that the fixed rod 11 drives the rotating cylinder 9 and all the connecting rods 10 to rotate together, and the rotating cylinder 9 drives all the second inclined plates 7 to rotate together through the connecting rods 10 thereon, and during the rotation process, all the second inclined plates 7 move under the guidance of the arc-shaped slide groove on the conical cylinder 3, so that the distance between the second inclined plate 7 and the adjacent first inclined plate 6 is gradually reduced, so that the first inclined plate 6 and the adjacent second inclined plate 7 perform a short impact extrusion on the mineral powder block between the two, assisting in breaking the hardened shell formed after the external drying of the mineral powder block, accelerating the drying and grinding process of the mineral powder block, and the short impact crushing reduces the probability of over-extrusion of the moist mineral powder inside the mineral powder block, ensuring subsequent smooth drying.

[0035] As the mineral powder gradually moves to the left, the average particle size of the mineral powder gradually decreases until the mineral powder contacts the feeding plate 8. The feeding plate 8 squeezes the mineral powder to the left under the drive of the frustum cylinder 3, thereby forcing the mineral powder to move to the left. The mineral powder moves to the left between the drying cylinder 2 and the first fixed shell 5. The mineral powder is ground under the relative rotation of the two, thereby producing mineral powder with a particle size that meets the requirements. Repeat the above steps to complete the drying and grinding of the mineral powder, and the use of this device is completed.

[0036] Example 2 This embodiment discloses a drying and grinding device for limestone powder, which is further improved on the basis of Example 1.

[0037] The structure, connection relationship and working process of the drying and grinding equipment in Example 1 will not be described in detail, and the working principle of the following structure will be emphasized.

[0038] like Figure 6 、 Figure 8 、 Figure 10 and Figure 11As shown, the truncated cone 3 is provided with evenly distributed through holes, and a sliding block 14 is slidably connected in the through holes on the truncated cone 3. The side of the sliding block 14 away from the axis of the truncated cone 3 is spherical. A second fixed shell 15 distributed in a circumferential array and a liquid storage shell 16 distributed in a circumferential array are fixedly connected in the truncated cone 3. The through holes on the truncated cone 3 are connected to the corresponding second fixed shell 15. The second fixed shell 15 and the liquid storage shell 16 are both provided with a transmission medium. The second fixed shell 15 is connected to the adjacent liquid storage shell 16 through a pipeline. The second fixed shell 15 is used to squeeze the adjacent liquid storage shell outward through the transmission medium. The sliding block 14 is slidably connected to the piston rod 17 in the liquid storage shell 16, and a return spring 18 is provided between the piston rod 17 and the liquid storage shell 16. The first fixed shell 5 is rotatably connected to the fixed cylinder 19, and the fixed cylinder 19 is connected to the outside to fix it. The fixed cylinder 19 is fixedly connected to the fixing frame 20, and the fixing frame 20 is fixedly connected to the fixing ring 21 which is slidably connected to the piston rod 17. The fixing ring 21 is fixedly connected to the limiting member 22. The limiting member 22 is located in the lower half of the fixing ring 21. The limiting member 22 is composed of an array of arc-shaped blocks with inclined surfaces. The limiting member 22 is used to squeeze the piston rod 17.

[0039] The working process of the drying and grinding equipment in this embodiment is as follows: Preparation process: The user securely connects the fixing tube 19 to the outside world, and the fixing tube 19 secures the fixing ring 21 through the fixing frame 20 .

[0040] Working process: In the process of drying the mineral powder in the above embodiment, most of the mineral powder blocks are accumulated at the lower part of the drying cylinder 2, and in the process of rotation of the conical cylinder 3, the conical cylinder 3 drives the sliding block 14, the second fixed shell 15 and the liquid storage shell 16 thereon to rotate together. Taking one of the liquid storage shells 16 as an example, the liquid storage shell 16 drives the piston rod 17 thereon to rotate during the rotation. When the piston rod 17 rotates to the lower half of the fixed ring 21, the piston rod 17 contacts and is squeezed onto the limiter 22. The piston rod 17 moves to the right under the pressure of the inclined surface of the limiter 22. The piston rod 17 moves to the right and squeezes the transmission medium on its right side, and at the same time squeezes the return spring 18. The transmission medium in the liquid storage shell 16 is squeezed into the adjacent second fixed shell 15 through the pipeline. The transmission medium in the second fixed shell 15 drives the sliding block 14 to move in the direction away from the axis of the drying cylinder 2, thereby making the sliding block 14 ... The block 14 extends from the conical cylinder 3. After the sliding block 14 is extended, it briefly "knocks" the adjacent mineral powder blocks as it rotates, thereby accelerating the shedding of the dried parts on the surface of the mineral powder blocks and improving the drying and grinding efficiency of the mineral powder blocks. After the piston rod 17 loses the extrusion with the inclined surface of the limiter 22, the return spring 18 drives the piston rod 17 to reset, and the piston rod 17 drives the sliding block 14 to retract and reset through the transmission medium. The above steps are repeated to assist in processing the mineral powder blocks until the mineral powder materials are heated and dried. After the device is used up, the piston rod 17 cooperates with the limiter 22. After the adjacent limiter 22 rotates to the mineral powder block gathering area, the limiter 22 is controlled to extend regularly. After the sliding block 14 is extended, it knocks the adjacent mineral powder blocks as it rotates, thereby accelerating the shedding of the dried parts on the surface of the mineral powder blocks and improving the drying and grinding efficiency of the mineral powder blocks.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drying and grinding device for limestone powder, characterized in that: The invention comprises a supporting frame (1), a drying drum (2) being rotatably connected to the supporting frame (1), a power module for driving the drying drum (2) to rotate being provided on the supporting frame (1), the drying drum (2) being rotatably connected to a conical drum (3) via a mounting frame, the supporting frame (1) being rotatably connected to a connecting drum (4), the connecting drum (4) being fixedly connected to a first fixed shell (5), and the first fixed shell (5) being fixedly connected to the conical drum (3).

2. The drying and grinding equipment for limestone powder according to claim 1, characterized in that: The drying drum (2) is provided with material storage troughs (201) distributed in a circumferential array, and the depth of the material storage troughs (201) gradually increases from one side away from the first fixed shell (5) to the other side.

3. The drying and grinding equipment for limestone powder according to claim 1, characterized in that: The truncated cone cylinder (3) is fixedly connected to uniformly distributed first inclined plates (6), and the uniformly distributed first inclined plates (6) are distributed in a spiral shape on the outside of the truncated cone cylinder (3).

4. The drying and grinding equipment for limestone powder according to claim 3, characterized in that: The truncated cone cylinder (3) is provided with uniformly distributed second inclined plates (7), the first inclined plates (6) and the second inclined plates (7) are both in contact with the drying cylinder (2), the uniformly distributed second inclined plates (7) are distributed in a spiral shape on the outside of the truncated cone cylinder (3), and the first inclined plates (6) and the second inclined plates (7) are distributed in an alternating manner.

5. The drying and grinding equipment for limestone powder according to claim 4, characterized in that: The truncated cone cylinder (3) is provided with feeding plates (8) distributed in a circumferential array. The feeding plates (8) are spiral-shaped, and the rotation direction of the feeding plates (8) is opposite to the rotation direction of the spiral formed by the evenly distributed first inclined plates (6).

6. The drying and grinding equipment for limestone powder according to claim 5, characterized in that: A rotating cylinder (9) is rotatably connected inside the conical cylinder (3), and evenly distributed connecting rods (10) are fixed to the rotating cylinder (9). The connecting rods (10) correspond to the second inclined plates (7) one by one, and the connecting rods (10) are fixed to the corresponding second inclined plates (7). The connecting rods (10) are slidably connected to the conical cylinder (3).

7. The drying and grinding equipment for limestone powder according to claim 6, characterized in that: The rotating cylinder (9) is fixedly connected to a fixed rod (11), the fixed rod (11) is slidably connected to a force rod (12), an inclined groove (13) is provided in the fixed rod (11), a protrusion sliding in the inclined groove (13) is provided on the force rod (12), and a spring is provided between the force rod (12) and the fixed rod (11).

8. The drying and grinding equipment for limestone powder according to claim 6, characterized in that: The truncated cone cylinder (3) is provided with evenly distributed through holes, and a sliding block (14) is slidably connected in the through holes on the truncated cone cylinder (3).

9. The drying and grinding equipment for limestone powder according to claim 8, characterized in that: The circumferentially arrayed second fixed shells (15) and the circumferentially arrayed liquid storage shells (16) are fixedly connected in the truncated cone cylinder (3). The through hole on the truncated cone cylinder (3) is connected to the corresponding second fixed shell (15). The second fixed shell (15) and the liquid storage shell (16) are both provided with a transmission medium. The second fixed shell (15) and the adjacent liquid storage shell (16) are connected through a pipeline. A piston rod (17) is slidably connected in the liquid storage shell (16). A return spring (18) is provided between the piston rod (17) and the liquid storage shell (16).

10. The drying and grinding equipment for limestone powder according to claim 9, characterized in that: The first fixed shell (5) is rotatably connected to a fixed cylinder (19), the fixed cylinder (19) is fixedly connected to a fixed frame (20), the fixed frame (20) is fixedly connected to a fixed ring (21), the piston rod (17) is slidably connected to the fixed ring (21), the fixed ring (21) is fixedly connected to a limiting member (22), and the limiting member (22) is used to squeeze the piston rod (17).

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