Raw material vertical mill screening device

By using multiple filters in rotation and an automatic cleaning system in the cement raw material vertical mill, the problem of filter clogging was solved, achieving a highly efficient powder screening and discharge process, and improving the operational stability and efficiency of the screening device.

CN223602636UActive Publication Date: 2025-11-28FENGYANG ZHONGDU CEMENT
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Patent Information

Application Number
CN202423079350.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-28
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In the screening process of existing cement raw material grinding equipment, the filter is easily clogged by dust, which affects the filtration effect and output efficiency.

Method used

Design a raw material vertical mill screening device that uses multiple filters in rotation, combined with a hydraulic rod, a motor-driven gear transmission system, and a cleaning and drying device to achieve automatic filter replacement and cleaning, preventing clogging.

Benefits of technology

By rotating the filters and using automatic cleaning, clogging is effectively prevented, improving filtration efficiency and discharge efficiency, and ensuring the accuracy of powder particle size.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223602636U_ABST
    Figure CN223602636U_ABST
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Abstract

The utility model provides a raw material vertical mill screening device, which relates to the technical field of cement grinding, and comprises a discharge pipe and a plurality of filters, and further comprises a platform arranged on one side of the discharge pipe, a mounting groove is arranged on the discharge pipe, one of the filters is connected with the discharge pipe through the mounting groove in a sliding and inserted manner, the filters are fixedly connected with sealing seats, and the sealing seats are fixedly connected with the discharge pipe. A hydraulic rod is rotationally connected to the platform, the hydraulic rod is arranged, the telescopic end of the hydraulic rod is controlled to extend, the rotating seat is driven to ascend, all the filters are driven to ascend, one filter is pulled out of the discharging pipe, the motor controls the hydraulic rod to rotate, and the hydraulic rod is driven to rotate. Therefore, the filter located above the discharging pipe moves to the position above the water tank, the filter located on one side of the discharging pipe moves to the position above the discharging pipe, and then the telescopic end of the hydraulic rod is controlled to contract to drive the filter to move into the discharging pipe and be sealed through the sealing seat.
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Description

TECHNICAL FIELD

[0001] The utility model relates to cement grinding technology field especially relates to a raw material vertical mill screening device. BACKGROUND

[0002] The grinding machine is widely used in chemical industry, mine, steel, thermal power, coal and other industries, and the grinding machine is divided into raw material grinding and cement grinding, and the two are respectively made of a cylinder of steel plate ball mill (or tube mill), and the raw material grinding is also made of a vertical mill.

[0003] After the search found as China patent authorized announcement number CN212349037U, a kind of cement raw material grinding device, including grinding device main body, feed inlet and discharge outlet, the feed inlet is installed on the upper portion of grinding device main body, the discharge outlet is installed on the top of grinding device main body, the feed inlet is installed with feed device, the discharge outlet top is installed with screening device, the screening device includes discharge pipe, filter, finished product outlet, return pipe, movable bin, fixed rod, clamping rod, spring and movable plate, the discharge outlet top is fixed with discharge pipe, the discharge pipe is installed with filter inside, and filter is fixed with return pipe below, the left side of discharge pipe is provided with finished product outlet, the return pipe bottom is penetrated into feed pipe top, the discharge pipe right side lower portion is installed with movable bin on both sides of symmetry, the movable bin is fixed with fixed rod inside, the fixed rod middle part is slidably connected with clamping rod, the clamping rod is fixed with movable plate on one side near discharge outlet, the movable plate top is all welded with spring, the spring top is all welded in the bottom of fixed rod, the clamping rod bottom is all penetrated into movable bin inner wall and the groove on discharge outlet top and cooperates with it to carry out clamping.

[0004] The device passes through the setting screening device and discharges qualified powder through discharge pipe, and unqualified powder is returned to grinding area through return pipe and is regrinded to obtain higher powder particle size precision, but in the screening process, filter is easy to be blocked by dust, to affect the filtering effect and reduce the discharge efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in prior art and provides a raw material vertical mill screening device.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a raw material vertical mill screening device, including the discharge pipe and a plurality of filters, still including the platform of setting at the one side of discharge pipe, install the groove on the discharge pipe, wherein the filter of a through install the groove with discharge pipe sliding joint, the fixedly connected with the sealing seat of filter, the sealing seat and install the groove mouth form the sealed type assembly relation, the hydraulic rod is rotatively connected on the platform, the fixedly connected with the swivel base of the telescopic end of hydraulic rod, a plurality of sealing seats are fixedly connected with the swivel base through the pin shaft, the water tank for washing filter and the fan for air-drying filter are provided on the platform, the stirring rod is rotatively connected in the water tank, the main shaft of stirring rod and the fan vane shaft are driven connection through the transmission part.

[0007] Preferably, the hydraulic rod is fixedly provided with a gear, and the platform is rotatively connected with an incomplete gear meshed with the gear.

[0008] Preferably, the transmission part includes two bevel gears meshed with each other, one of the bevel gears is fixedly connected with the main shaft of the stirring rod, and the other bevel gear is fixedly connected with the fan vane shaft.

[0009] Preferably, the discharge pipe is fixedly connected with a fixed seat, a connecting rod is slidingly inserted into the middle of the fixed seat, one end of the connecting rod is fixedly connected with a hammer head for impacting the filter, the other end of the connecting rod is fixedly connected with a transmission plate, and a supporting piece is further fixedly connected to the connecting rod.

[0010] Preferably, the discharge pipe is rotatively connected with an eccentric wheel abutting against the transmission plate, and three motors are fixedly arranged on the platform, which are respectively used for driving the main shaft of the stirring rod, the incomplete gear and the eccentric wheel to rotate.

[0011] Preferably, the filter is provided with four, the four filters are arranged in a ring array along the bottom surface edge of the swivel base and are arranged at the same height, and the two adjacent filters are perpendicular to each other.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that,

[0013] 1、In the utility model, a plurality of filters are arranged for rotation, the telescopic end of the hydraulic rod is controlled to be elongated, the swivel base is driven to ascend, all the filters are driven to ascend, one of the filters is drawn out of the discharge pipe, the motor controls the rotation of the hydraulic rod, so that the filter above the discharge pipe moves to the upper side of the water tank, the filter on one side of the discharge pipe moves to the upper side of the discharge pipe, the telescopic end of the hydraulic rod is controlled to be contracted, the filter is driven to move in and out of the discharge pipe, and the sealing seat is sealed.

[0014] 2. The utility model discloses a water tank and fan are set up, and the water tank is used for washing the filter full of dust, when replacing the filter, the filter in the water tank will move to the side of fan, and the stirring rod in the water tank rotates and drives the fan main shaft to rotate, thereby driving the fan to work, and the filter on one side is air dried. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic diagram of the raw material vertical mill screening device is provided for the utility model;

[0016] Figure 2 A three-dimensional structure schematic diagram of the filter is provided for the utility model;

[0017] Figure 3 A three-dimensional structure schematic diagram of the gear is provided for the utility model;

[0018] Figure 4 A three-dimensional structure schematic diagram of the spring is provided for the utility model;

[0019] Figure 5 A three-dimensional structure schematic diagram of the mounting groove is provided for the utility model.

[0020] Legend: 1, discharge pipe; 2, platform; 3, filter; 4, rotating seat; 5, hydraulic rod; 6, mounting groove; 7, sealing seat; 8, water tank; 9, eccentric wheel; 10, motor; 11, bevel gear; 12, fan; 13, stirring rod; 14, incomplete gear; 15, gear; 16, hammer head; 17, support piece; 18, fixed seat; 19, transmission plate; 20, spring; 21, connecting rod. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples.It should be explained that the embodiment of the application and the features in the embodiment can be combined mutually in the case of no conflict.

[0022] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.

[0023] As Figures 1-4As shown, a raw material vertical mill screening device includes a discharge pipe 1 and multiple filters 3, and a platform 2 set on one side of the discharge pipe 1. The discharge pipe 1 has an installation groove 6, in which one filter 3 is slidably inserted into the discharge pipe 1 through the installation groove 6. A sealing seat 7 is fixedly connected to the filter 3, and the sealing seat 7 and the groove of the installation groove 6 form a sealed assembly relationship. A hydraulic rod 5 is rotatably connected to the platform 2, and a rotating seat 4 is fixedly connected to the telescopic end of the hydraulic rod 5. Multiple sealing seats 7 are fixedly connected to the rotating seat 4 through pins. A water tank 8 for cleaning the filters 3 and a fan 12 for drying the filters 3 are set on the platform 2. A stirring rod 13 is rotatably connected in the water tank 8. The main shaft of the stirring rod 13 is connected to the fan blade shaft of the fan 12 through a transmission component. Four filters 3 are arranged in a circular array along the bottom edge of the rotating seat 4 and are set at the same height. The two adjacent filters 3 are perpendicular to each other.

[0024] In this technical solution, multiple filters 3 are set up for rotation. When the filters 3 are rotated, the extension end of the hydraulic rod 5 extends, causing all the filters 3 to rise and be pulled out from the discharge pipe 1 and the water tank 8. A stirring rod 13 is set up to stir the water inside the water tank 8 to flush the filters 3. A transmission component is set up so that when the stirring rod 13 rotates, it will drive the fan 12 to work and dry the filters 3.

[0025] like Figure 3 As shown, a gear 15 is fixedly mounted on the hydraulic rod 5, and an incomplete gear 14 that meshes with the gear 15 is rotatably connected to the platform 2.

[0026] In this technical solution, the rotation of the incomplete gear 14 drives the rotation of the gear 15. One rotation of the incomplete gear 14 drives the gear 15 to rotate a quarter turn. The process of the filter 3 being used alternately is as follows: the extension end of the hydraulic rod 5 extends, driving the rotating seat 4 to rise, which in turn raises all the filters 3, allowing the filters 3 to be pulled out from the discharge pipe 1. Then, the incomplete gear 14 is rotated one turn, driving the gear 15 to rotate a quarter turn, thereby moving the filter 3 located above the discharge pipe 1 to the top of the water tank 8, and the filter 3 located on one side of the discharge pipe 1 to the top of the discharge pipe 1. Immediately afterwards, the extension end of the hydraulic rod 5 is controlled to retract, driving the filter 3 to move into the interior of the discharge pipe 1, and the sealing seat 7 seals by abutting against the groove of the mounting groove 6.

[0027] like Figure 2 As shown, the transmission component includes two meshing bevel gears 11, one bevel gear 11 being fixedly connected to the main shaft of the stirring rod 13, and the other bevel gear 11 being fixedly connected to the fan blade shaft of the blower 12.

[0028] In this technical solution, by setting a bevel gear 11, when the main shaft of the stirring rod 13 rotates, it drives the main shaft of the blower 12 to rotate, thereby driving the blower 12 to work.

[0029] As Figure 4 shown, the fixed seat 18 is fixedly connected inside the discharge pipe 1, the connecting rod 21 is slidingly inserted in the middle of the fixed seat 18, one end of the connecting rod 21 is fixedly connected with the hammer head 16 for impacting the filter 3, the other end is fixedly connected with the transmission plate 19, the supporting sheet 17 is also fixedly connected on the connecting rod 21, the spring 20 is arranged between the supporting sheet 17 and the fixed seat 18 and is sleeved with the connecting rod 21, the eccentric wheel 9 is rotatably connected inside the discharge pipe 1 and abuts against the transmission plate 19.

[0030] In the technical solution, when the eccentric wheel 9 rotates, the transmission plate 19 is driven to move towards the filter 3 inside the discharge pipe 1, and then the connecting rod 21 is driven to move on the fixed seat 18, and the hammer head 16 is driven to repeatedly impact the filter 3, so that the dust blocked in the filter hole is knocked out through the vibration, and when the hammer head 16 impacts the filter 3, the spring 20 is in the stretched state, when the eccentric wheel 9 continues to move, the spring 20 drives the connecting rod 21 to reset through the reset force, and then the transmission plate 19 is always in abutment with the side edge of the eccentric wheel 9.

[0031] As Figure 3 and Figure 4 shown, three motors 10 are fixedly arranged on the platform 2, and the three motors 10 are respectively used for driving the stirring rod 13 main shaft, the incomplete gear 14 and the eccentric wheel 9 to rotate.

[0032] In the technical solution, the main shafts of the three motors 10 are respectively fixed with the stirring rod 13 main shaft, the center of the incomplete gear 14 and the eccentric wheel 9, and the main shaft of one of the motors 10 is fixed with the pipe wall of the discharge pipe 1 and is sealingly arranged at the penetrating position.

[0033] Working principle: when the ground powder in the vertical mill device is discharged through the discharge pipe 1, the powder is screened and discharged through the filter 3, when the filter 3 is replaced, the extension end of the hydraulic rod 5 is controlled to be elongated, the rotating seat 4 is driven to rise, all the filters 3 are driven to rise, one of the filters 3 is pulled out from the discharge pipe 1, then the motor 10 controls the incomplete gear 14 to rotate one circle, the gear 15 is driven to rotate one quarter of a circle, so that the filter 3 above the discharge pipe 1 is moved to the upper side of the water tank 8, the filter 3 on one side of the discharge pipe 1 is moved to the upper side of the discharge pipe 1, then the extension end of the hydraulic rod 5 is controlled to be contracted, the filter 3 is driven to move in and out of the discharge pipe 1 and is sealed through the sealing seat 7, and after the filter 3 to be replaced is moved to the upper side of the water tank 8, it is driven to move into the water tank 8 through the contraction of the extension end of the hydraulic rod 5 and is cleaned through the water flow.

[0034] The wiring diagram of the hydraulic rod 5 and the motor 10 is common knowledge in the field, and the working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the hydraulic rod 5 and the motor 10 are not explained in detail.

[0035] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A raw meal roller mill screening device comprising a discharge pipe (1) and a plurality of filters (3), characterized in that: Also include the platform (2) set in the discharge pipe (1) side, the discharge pipe (1) is provided with mounting groove (6), one of the filter (3) is inserted through the mounting groove (6) and the discharge pipe (1), the filter (3) is fixedly connected with sealing seat (7), the sealing seat (7) and the mounting groove (6) slot form sealing type assembly relationship, the platform (2) is rotatably connected with hydraulic rod (5), the telescopic end of the hydraulic rod (5) is fixedly connected with rotating seat (4), a plurality of sealing seat (7) is fixedly connected with rotating seat (4) through the pin shaft, the platform (2) is provided with water tank (8) for cleaning filter (3) and fan (12) for air drying filter (3), the water tank (8) is rotatably connected with stirring rod (13), the main shaft of the stirring rod (13) and the fan (12) blade shaft are driven connected through transmission part.

2. Raw meal roller mill and screening device according to claim 1, characterized in that The gear (15) is fixedly arranged on the hydraulic rod (5), and the incomplete gear (14) rotatably connected with the gear (15) is rotatably connected with the platform (2).

3. Raw meal roller mill and classifying device according to claim 1, characterized in that The transmission part includes two intermeshing bevel gears (11), one of which is fixedly connected with the main shaft of the stirring rod (13), and the other is fixedly connected with the fan (12) blade shaft.

4. Raw meal roller mill and classifying device according to claim 1, characterized in that The fixed seat (18) is fixedly connected inside the discharge pipe (1), the connecting rod (21) is slidably inserted into the middle of the fixed seat (18), one end of the connecting rod (21) is fixedly connected with the hammer head (16) for impacting the filter (3), the other end is fixedly connected with the transmission plate (19), the connecting rod (21) is also fixedly connected with the supporting piece (17), the supporting piece (17) and the fixed seat (18) are provided with the spring (20) installed with the connecting rod (21).

5. The raw meal mill and classifier device according to claim 1, characterized in that: The eccentric wheel (9) abutting with the transmission plate (19) is rotatably connected in the discharge pipe (1), the three motors (10) are fixedly arranged on the platform (2), and the three motors (10) are respectively used to drive the stirring rod (13) main shaft, the incomplete gear (14) and the eccentric wheel (9) rotation.

6. A raw meal mill and separator apparatus according to claim 1 wherein: The filter (3) is provided with four, four filters (3) are arranged in annular array along the bottom edge of the rotating seat (4) and are arranged at the same height, and two adjacent filters (3) are perpendicular to each other.

Citation Information

Patent Citations

  • Cement raw material grinding device

    CN212349037U