Continuous cement grinding device

Abstract

The utility model belongs to cement grinding technical field, concretely relates to a continuous cement grinding device, including support platform, the upper end of support platform is provided with vertical roller mill, the right -hand member of support platform is provided with auger elevator, the lower end fixedly connected with the blanking box of support platform, the inner wall fixedly connected with screen cloth of blanking box, the right -hand member fixedly connected with the discharge box of blanking box, the feed pipe fixed connection of discharge box and auger elevator. The cooperation and use of vertical roller mill, screen cloth, auger elevator etc. structure can be used for roller grinding, screening, continuous roller grinding operation of gypsum, clinker etc. to reduce the difference of cement powder granularity, under the action of card slot, card etc. structure, the rotation adjustment of sealing disc, the spacing use can be carried out, and then the adaptability adjustment of the flow diameter of discharge pipe is carried out, and the subsequent continuous roller grinding operation treatment is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of cement grinding technology, specifically relating to a continuous cement grinding device. Background Technology

[0002] Continuous cement grinding equipment is the core equipment in cement production, used to grind raw materials such as clinker and gypsum to the required fineness to form the final cement product. It is mainly divided into: ball mill systems, vertical roller mills, and roller press systems.

[0003] A vertical roller mill is disclosed in invention patent publication number CN107614112A, which has grinding rollers rolling on the grinding path of a rotatable grinding table and an outer peripheral nozzle ring separation zone for conveying and separating gas. The coarse particles of the grinding material are entrained by gas from a position located below, at, or above the nozzle ring separation zone, upward into a pipe, and conveyed to the inlet of a material separator located above the grinding table.

[0004] However, existing continuous cement grinding equipment also has certain drawbacks. Although existing continuous cement grinding equipment uses grinding discs, grinding rollers and other roller grinding components to complete the grinding operation of clinker, gypsum and other materials, the differences in the force-bearing surface of clinker and gypsum and the roller grinding pressure can easily cause the particle size of the subsequent cement powder to vary greatly. Summary of the Invention

[0005] The purpose of this utility model is to provide a continuous cement grinding device that solves the problem that existing continuous cement grinding devices, although using grinding discs, grinding rollers and other roller grinding components to complete the grinding of clinker, gypsum and other materials, suffer from large particle size differences in the subsequent cement powder due to factors such as the difference in the force-bearing surface of clinker, gypsum and other materials and the difference in roller grinding pressure.

[0006] To achieve the above objectives, this utility model provides a continuous cement grinding device, including a support platform, a vertical roller mill mounted on the upper end of the support platform, an auger elevator mounted on the right end of the support platform, a feeding box fixedly connected to the lower end of the support platform, a screen fixedly connected to the inner wall of the feeding box, a discharge box fixedly connected to the right end of the feeding box, the discharge box being fixedly connected to the feed pipe of the auger elevator, a discharge pipe fixedly connected to the upper left side of the auger elevator, the discharge pipe being located above the feed inlet of the vertical roller mill, and an oscillation mechanism mounted on the feeding box. A fixed frame is fixedly connected to the upper side of the discharge pipe. A rotating rod is mounted on the horizontal part of the fixed frame via a bearing. The rotating rod is rotatably connected to the discharge pipe. A sealing disc is fixedly sleeved on the outer side of the rotating rod. The sealing disc is rotatably connected to the discharge pipe. A rotating column is fixedly sleeved on the outer side of the rotating rod. A slot is provided on the side of the rotating column. A card is slidably connected to the vertical part of the fixed frame. The horizontal part of the card is slidably connected to the slot. Through the cooperation of the slot, card, and other structures, the rotating column can be limited, thereby adjusting the rotation of the sealing disc, and ultimately adapting the flow diameter of the discharge pipe.

[0007] The principle of this utility model is as follows: by setting up a screen, the cement powder after the first roller mill can be screened and used, so that the cement powder that does not conform to the particle size flows into the discharge box. Under the action of the auger elevator, the cement powder can be lifted and output under the action of the discharge pipe, and then the cement powder is subjected to a second roller mill to reduce the difference in particle size of the cement powder. By pulling the end plate downwards, the telescopic rod slides along the inner wall of the support frame, causing the spring to deform and the contact ball to detach from the screen. When the end plate is released, the spring returns to its original shape, pulling the contact ball back to its original position. This allows the contact ball to contact and impact the screen, causing the screen to vibrate and thus preventing screen clogging. By pulling the card to the left, the elastic element deforms, causing the card to disengage from the slot. Then, the rotating rod is pushed to rotate, which in turn rotates the rotating column and causes the sealing disc to rotate inside the discharge pipe. This adjusts the opening angle of the sealing disc, thereby adaptively regulating the flow rate of the discharge pipe. The card is then released, allowing the elastic element to return to its original shape, so that the card can be pulled to insert into the next slot. This limits the rotation column and stabilizes the sealing disc.

[0008] The beneficial effects of this utility model are as follows: This solution, through the combined use of a vertical roller mill, screen, auger elevator, and other structures, can perform roller milling, screening, and continuous roller milling operations on gypsum, clinker, etc., to reduce the difference in particle size of cement powder. Under the action of the slot, card, and other structures, the sealing disc can be rotated, adjusted, and limited, thereby adapting the flow diameter of the discharge pipe to facilitate subsequent continuous roller milling operations. Through the setting of the screen, the cement material from the first roller milling can be screened, and cement material with excessive particle size differences can be subsequently output and re-rolled. Under the action of the telescopic rod, contact ball, spring, and other structures, the screen can be vibrated, which not only avoids the problem of screen mesh clogging, but also allows for the vibrating discharge of large-particle cement material and ensures good screen flow.

[0009] Furthermore, multiple card slots are provided, and the multiple card slots are arranged in a circular array on the rotating column. The design of the card slots facilitates the insertion and use of cards.

[0010] Furthermore, an elastic element is fixedly connected to the vertical part of the card, and the other end of the elastic element is fixedly connected to the vertical part of the fixing frame. The card can be connected and used by means of the elastic element.

[0011] Furthermore, the oscillation mechanism includes a support frame, with the lower end of the feeding box fixedly connected to the support frame. A feeding trough is provided on the horizontal part of the support frame, and a telescopic rod is slidably connected to the horizontal part of the support frame. A contact ball is fixedly connected to the upper end of the telescopic rod, and the contact ball contacts the screen. An end plate is fixedly connected to the lower end of the telescopic rod, and a spring is provided on the outer side of the telescopic rod. Through the combined use of the telescopic rod, spring, contact ball, and other structures, the screen can be impacted and oscillated.

[0012] Furthermore, two feeding troughs are provided, which are symmetrically distributed on the horizontal part of the support frame. The feeding troughs can improve the feeding effect of the support frame.

[0013] Furthermore, one end of the spring is welded to the end plate, and the other end of the spring is welded to the horizontal part of the support frame. The end plate can be connected and used through the arrangement of the spring. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of the continuous cement grinding device according to an embodiment of the present invention; Figure 2 This invention relates to a continuous cement grinding device. Figure 1 A diagram showing the view from below; Figure 3 This invention relates to a continuous cement grinding device. Figure 2 Enlarged view of the sealing disc; Figure 4 This invention relates to a continuous cement grinding device. Figure 2 Enlarged view of the oscillation mechanism.

[0015] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: support platform 1, vertical roller mill 2, auger elevator 3, feeding box 4, screen 5, discharge box 6, discharge pipe 7, oscillation mechanism 8, fixed frame 9, rotating rod 10, sealing disc 11, rotating column 12, slot 13, card 14, elastic element 15, support frame 80, feeding trough 81, telescopic rod 82, contact ball 83, end plate 84, spring 85. Detailed Implementation

[0016] The implementation examples are basically as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a continuous cement grinding device, including a support platform 1, a vertical roller mill 2 is installed at the upper end of the support platform 1, an auger elevator 3 is installed at the right end of the support platform 1, a feeding box 4 is fixedly connected to the lower end of the support platform 1, a screen 5 is fixedly connected to the inner wall of the feeding box 4, a discharge box 6 is fixedly connected to the right end of the feeding box 4, the discharge box 6 is fixedly connected to the feed pipe of the auger elevator 3, and a discharge pipe 7 is fixedly connected to the upper left side of the auger elevator 3, the discharge pipe 7 is located above the feed inlet of the vertical roller mill 2.

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, a fixed frame 9 is fixedly connected to the upper side of the discharge pipe 7. A rotating rod 10 is mounted on the horizontal part of the fixed frame 9 via a bearing. The rotating rod 10 is rotatably connected to the discharge pipe 7. A sealing disc 11 is fixedly sleeved on the outer side of the rotating rod 10. The sealing disc 11 is rotatably connected to the discharge pipe 7. A rotating column 12 is fixedly sleeved on the outer side of the rotating rod 10. A slot 13 is provided on the side of the rotating column 12. A card 14 is slidably connected to the vertical part of the fixed frame 9. The horizontal part of the card 14 is slidably connected to the slot 13. Through the cooperation of the slot 13, card 14 and other structures, the rotating column 12 can be limited, thereby adjusting the rotation of the sealing disc 11, and finally adapting the flow diameter of the discharge pipe 7.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, multiple card slots 13 are provided, and the multiple card slots 13 are arranged in a circular array on the rotating column 12. The card slots 13 facilitate the insertion and use of cards 14. An elastic member 15 is fixedly connected to the vertical part of the card 14, and the other end of the elastic member 15 is fixedly connected to the vertical part of the fixing frame 9. The card 14 can be connected and used through the setting of the elastic member 15.

[0019] like Figure 1 , Figure 2 , Figure 4 As shown, the feeding box 4 is equipped with an oscillation mechanism 8, which includes a support frame 80. The support frame 80 is fixedly connected to the lower end of the feeding box 4. A feeding trough 81 is opened on the horizontal part of the support frame 80. A telescopic rod 82 is slidably connected to the horizontal part of the support frame 80. A contact ball 83 is fixedly connected to the upper end of the telescopic rod 82. The contact ball 83 contacts the screen 5. An end plate 84 is fixedly connected to the lower end of the telescopic rod 82. A spring 85 is provided on the outside of the telescopic rod 82. Through the coordinated use of the telescopic rod 82, spring 85, contact ball 83 and other structures, the screen 5 can be impacted and oscillated.

[0020] like Figure 1 , Figure 2 , Figure 4 As shown, there are two feeding slots 81, which are symmetrically distributed on the horizontal part of the support frame 80. The feeding slots 81 can improve the feeding effect of the support frame 80. One end of the spring 85 is welded to the end plate 84, and the other end of the spring 85 is welded to the horizontal part of the support frame 80. The end plate 84 can be connected and used through the spring 85.

[0021] The specific implementation process of this utility model is as follows: By setting the screen 5, the cement powder after the first roller mill can be screened and used, so that the cement powder that does not conform to the particle size flows into the discharge box 6. Under the action of the auger elevator 3, the cement powder can be lifted and output under the action of the discharge pipe 7, and then the cement powder is subjected to a second roller mill to reduce the difference in particle size of cement powder. By pulling the end plate 84 downward, the telescopic rod 82 slides along the inner wall of the support frame 80, causing the spring 85 to deform and the contact ball 83 to disengage from the screen 5. When the end plate 84 is released, the spring 85 can return to its original shape, pulling the contact ball 83 to move back to its original position, so that the contact ball 83 contacts and impacts the screen 5, thereby causing the screen 5 to vibrate, so as to avoid the problem of screen 5 clogging. By pulling the card 14 to the left, the elastic element 15 deforms, causing the card 14 to disengage from the slot 13. Then, the rotating rod 10 is pushed to rotate, causing the rotating column 12 to rotate, which in turn causes the sealing disc 11 to rotate inside the discharge pipe 7. The opening angle of the sealing disc 11 is adjusted, thereby adaptively adjusting the flow rate of the discharge pipe 7. The card 14 is then released, allowing the elastic element 15 to return to its original shape, so that the card 14 can be pulled to insert into the next slot 13, limiting the rotating column 12 and ensuring that the sealing disc 11 is in a stable state.

[0022] This solution utilizes a combination of a vertical roller mill 2, a screen 5, and an auger elevator 3 to perform roller milling, screening, and continuous roller milling operations on gypsum, clinker, etc., thereby reducing the particle size variation of cement powder. The slots 13 and cards 14 allow for adjustment and limiting of the rotation of the sealing disc 11, which in turn allows for adaptive adjustment of the flow diameter of the discharge pipe 7, facilitating subsequent continuous roller milling operations. The screen 5 allows for screening of cement material from the first roller milling operation and subsequent output and re-rolling of cement material with excessively large particle size variations. The telescopic rod 82, contact ball 83, and spring 85 allow for vibration of the screen 5, preventing mesh clogging and enabling the vibrating discharge of large-diameter cement material while ensuring good flowability of the screen 5.

[0023] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A continuous cement grinding device, comprising a support platform, characterized in that: A vertical roller mill is installed at the upper end of the support platform, and an auger elevator is installed at the right end of the support platform. A feeding box is fixedly connected to the lower end of the support platform, and a screen is fixedly connected to the inner wall of the feeding box. A discharge box is fixedly connected to the right end of the feeding box, and the discharge box is fixedly connected to the feed pipe of the auger elevator. A discharge pipe is fixedly connected to the upper left side of the auger elevator, and the discharge pipe is located above the feed inlet of the vertical roller mill. An oscillation mechanism is installed on the feeding box. A fixed frame is fixedly connected to the upper side of the discharge pipe. A rotating rod is mounted on the horizontal part of the fixed frame via a bearing. The rotating rod is rotatably connected to the discharge pipe. A sealing disc is fixedly sleeved on the outer side of the rotating rod. The sealing disc is rotatably connected to the discharge pipe. A rotating column is fixedly sleeved on the outer side of the rotating rod. A slot is provided on the side of the rotating column. A card is slidably connected to the vertical part of the fixed frame. The horizontal part of the card is slidably connected to the slot.

2. The continuous cement grinding device according to claim 1, characterized in that: The card slots are provided in multiple ways, and the multiple card slots are arranged in a ring array on the rotating column.

3. The continuous cement grinding device according to claim 1, characterized in that: An elastic element is fixedly connected to the vertical part of the card, and the other end of the elastic element is fixedly connected to the vertical part of the fixing frame.

4. The continuous cement grinding device according to claim 1, characterized in that: The oscillation mechanism includes a support frame. The lower end of the feeding box is fixedly connected to the support frame. A feeding groove is opened on the horizontal part of the support frame. A telescopic rod is slidably connected to the horizontal part of the support frame. A contact ball is fixedly connected to the upper end of the telescopic rod. The contact ball contacts the screen. An end plate is fixedly connected to the lower end of the telescopic rod. A spring is provided on the outside of the telescopic rod.

5. The continuous cement grinding device according to claim 4, characterized in that: There are two feeding troughs, which are symmetrically distributed on the horizontal part of the support frame.

6. The continuous cement grinding device according to claim 4, characterized in that: One end of the spring is welded to the end plate, and the other end of the spring is welded to the horizontal part of the support frame.

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