Impurity removing equipment used before cement raw material grinding processing

Abstract

The utility model discloses impurity removing equipment used before cement raw material grinding. The impurity removing equipment comprises a rotating shaft, an impurity removing groove, an electromagnet, a driving motor, a lifting device, a first support and a sliding block. The rotating shaft is horizontally arranged above a conveying belt used for conveying mineral raw materials in a crossing mode. The impurity removing groove is of a strip-shaped triangular groove-shaped structure, and the rotating shaft is fixed to the upper surface of the impurity removing groove. The electromagnet is fixed to the outer wall face of the impurity removal groove and located on the side face of the rotating shaft. A motor shaft of the driving motor is connected with one end of the rotating shaft through a universal joint, and the driving motor is fixed to a vertical telescopic rod of the lifting device. The first support is located at the other end of the rotating shaft, and the sliding block is rotationally connected with the first support. The other end of the rotating shaft is sleeved with the sliding block in a sliding mode and extends to the outer side of the impurity removing groove. According to the impurity removal equipment, iron blocks, steel nails and other iron impurities in raw mineral materials for preparing cement can be reduced, and potential hazards to a grinding machine are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing, in particular to a device for removing impurities before cement raw material grinding processing. Background Art

[0002] Cement is one of the building materials currently used on a large scale, and is widely used in the construction of projects such as buildings, highways, bridges, water conservancy and hydropower. The production process of cement involves multiple links, and each mineral raw material is usually first prepared into raw materials according to a certain ratio and then calcined at high temperature, and then the calcined product is ground after rapid cooling to obtain cement clinker. The mineral raw materials mainly include calcareous raw materials (such as limestone), siliceous raw materials (such as sandstone, silica), aluminum raw materials (such as fly ash, bauxite), iron raw materials (such as iron ore, sulfuric acid slag, copper slag) and auxiliary materials (such as slag, slag, desulfurized gypsum) etc. The above-mentioned mineral raw materials need to be transported to the grinder before use and ground into powder to increase the contact between the raw materials, so as to be convenient to fully carry out solid phase reaction in the calcination stage to form cement clinker. However, some mineral raw materials etc. sometimes also contain iron debris such as iron blocks and steel nails, and these debris once enter the grinder, are easy to cause the grinder to fail or even be damaged. Therefore, before grinding, it is necessary to remove these iron impurities in the mineral raw materials as much as possible to reduce the potential harm to the grinder. Utility Model Content

[0003] The utility model provides a cement raw material pre-grinding impurity removal device, which helps to reduce iron impurities such as iron blocks and steel nails in the mineral raw materials used to prepare cement, and reduces potential harm to the grinder. To achieve the above purpose, the technical solution of the utility model is as follows.

[0004] A cement raw material pre-grinding impurity removal device comprises: a rotating shaft, an impurity removal trough, an electromagnet, a driving motor, a lifting device, a first bracket and a slider. The rotating shaft is horizontally and horizontally arranged above a conveyor belt for conveying mineral raw materials. The impurity removal trough is a strip-shaped triangular groove-shaped structure, the rotating shaft is fixed on the upper surface of the impurity removal trough, and the notch of the impurity removal trough faces the conveyor belt below. The electromagnet is fixed on the outer wall surface of the impurity removal trough and is located on the side of the rotating shaft. The motor shaft of the driving motor is connected to one end of the rotating shaft through a universal joint, and the driving motor is fixed to the vertical telescopic rod of the lifting device. The first bracket is located at the other end of the rotating shaft, the slider is rotatably connected to the first bracket, and the slider can rotate clockwise and counterclockwise. The slider is slidably sleeved on the other end of the rotating shaft, and this end extends outside the impurity removal trough.

[0005] Furthermore, a coaxially arranged sliding rod is fixed to the other end of the rotating shaft, and its diameter is smaller than that of the rotating shaft, and the sliding block is slidably sleeved on the sliding rod.

[0006] Furthermore, vertical baffles are provided at the edges of both sides of the impurity removal trough to prevent the iron impurities from sliding out from the edges of both sides of the impurity removal trough when being discharged.

[0007] Furthermore, the upper end of the first bracket is a "U"-shaped structure, the slider is located in the "U"-shaped groove of the "U"-shaped structure, and the two side walls of the slider are rotatably connected to the "U"-shaped groove through a connecting rod so that the slider can rotate clockwise and counterclockwise.

[0008] Furthermore, it also includes a second bracket fixed between the driving motor and the conveyor belt, the upper end of which is in the shape of a "U"-shaped groove. The rotating shaft is supported in the "U"-shaped groove.

[0009] Furthermore, a support plate is fixed on the side wall of the second bracket, and the drive motor is supported on the support plate. The telescopic rod of the lifting device slides through the through hole on the support plate and is fixedly connected to the bottom surface of the drive motor.

[0010] Furthermore, it also includes a collection box disposed below the end of the impurity removal tank. Optionally, the first bracket is fixed on the collection box.

[0011] Furthermore, a first vibration device is arranged on the outer wall surface of the impurity removal tank to promote the discharge of iron impurities in the impurity removal tank.

[0012] Furthermore, a second vibration device is provided below the conveyor belt, and the lower surface of the conveyor belt contacts the vibration shaft of the second vibration device to vibrate and turn over the mineral raw materials on the conveyor belt.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the above-mentioned impurity removal equipment of the utility model can use the impurity removal trough to absorb and separate iron debris such as iron blocks and steel nails in the mineral raw materials passing through the conveyor belt below, so as to prevent them from entering the grinder together with the mineral raw materials and causing malfunctions or even damage to the grinder. At the same time, the impurity removal trough can also be flipped 180° under the action of the driving motor, and then the impurity removal trough is tilted under the action of the lifting device. After turning off the electromagnet on the impurity removal trough, the iron debris collected in the impurity removal trough can automatically slide into the collection box, completing the emptying of the impurity removal trough, which is convenient for resetting the impurity removal trough and reusing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0015] Figure 1 It is a schematic diagram of the structure of the impurity removal equipment before cement raw material grinding processing in the following embodiments.

[0016] Figure 2 Schematic diagram of the structure of the impurity removal tank in the following embodiments.

[0017] Figure 3 Schematic diagram of the structure of the rotating shaft and the slider in the following embodiments.

[0018] Figure 4 Schematic diagram of the structure of the first bracket in the following embodiments.

[0019] Figure 5 Schematic diagram of the use of the equipment for removing impurities before grinding cement raw materials in the following embodiments.

[0020] Figure 6 Schematic diagram of the structure of another impurity removal tank in the following embodiments.

[0021] Figure 7 Schematic diagram of the structure of the second bracket in the following embodiments.

[0022] The numbers in the above drawings represent: 1-rotating shaft, 2-debris removal groove, 3-electromagnet, 4-driving motor, 5-lifting device, 6-first bracket, 7-sliding block, 8-conveyor belt, 9-universal joint, 10-second bracket, 11-support plate, 12-collection box, 13-first vibration device, 14-second vibration device, 101-sliding rod, 201-vertical baffle, 701-connecting rod. DETAILED DESCRIPTION

[0023] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or component needs to have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by ordinary technicians in the technical field to which the present invention belongs. Now, the present invention's cement raw material pre-grinding impurity removal equipment is further explained in conjunction with the accompanying drawings and specific embodiments of the specification.

[0025] refer to Figures 1 to 4, an example of a cement raw material impurity removal device before grinding processing, including: a rotating shaft 1, an impurity removal trough 2, an electromagnet 3, a driving motor 4, a lifting device 5, a first bracket 6 and a slider 7. Specifically: the rotating shaft 1 is horizontally arranged from left to right, and the rotating shaft 1 is arranged across the conveyor belt 8 for conveying mineral raw materials. The rotating shaft 1 can adopt a hollow metal tube to reduce its weight. The impurity removal trough 2 is a strip-shaped triangular groove structure, which can be formed by a plate body bent from the middle into an obtuse angle (such as 110°, 120°, 150°, etc.) (reference Figure 2 The impurity removal trough 2 is arranged directly below the rotating shaft 1, and the rotating shaft 1 is fixedly connected to the center of the upper surface of the impurity removal trough 2 by welding or the like, and the notch of the impurity removal trough 2 faces the conveyor belt 8 below. The right end of the impurity removal trough 2 extends outside the conveyor belt 8, so that the iron impurities collected in the impurity removal trough 2 can be discharged after the impurity removal trough 2 is in an inclined state.

[0026] Several electromagnets 3 are fixed at intervals on the outer wall of the impurity removal trough 2 and are located on the side of the rotating shaft 1, so as to absorb and separate iron debris such as iron blocks and steel nails in the mineral raw materials on the conveyor belt 8, and prevent them from entering the grinder together with the mineral raw materials to cause malfunctions, or even damage the grinder. The drive motor 4 is horizontally arranged on the left side of the impurity removal trough 2, and the motor shaft of the drive motor 4 is connected to the left end of the rotating shaft 1 through a universal joint 9. The drive motor 4 is used to drive the rotating shaft 1 to rotate so that the impurity removal trough 2 is flipped to the notch facing upward. Further, the drive motor 4 is fixed on the vertical telescopic rod of the lifting device 5, which is used to lift the drive motor 4, so as to make the rotating shaft 1 and the impurity removal trough 2 inclined (such as 30°, 40°, etc.) so as to discharge the iron debris collected in the impurity removal trough 2. The lifting device 5 can adopt an electric cylinder, etc.

[0027] The first bracket 6 is vertically fixedly disposed on the right side of the conveyor belt 8 and is located below the right part of the rotating shaft 1. Figure 4 The upper end of the first bracket 6 is a "U"-shaped structure, the slider 7 is located in the "U"-shaped groove of the "U"-shaped structure, and the two side walls of the slider 7 are rotatably connected to the "U"-shaped groove through a connecting rod 701, so that the slider 7 can rotate clockwise and counterclockwise. The slider 7 has a through hole, and its sliding sleeve is on the right end of the rotating shaft 1, and the right end extends to the outside of the impurity removal groove 2, so as to cooperate with the upward and tilting movement of the rotating shaft 1.

[0028] When using, refer to Figure 1The mineral raw materials on the conveyor belt 8 pass under the impurity removal tank 2. When there are iron impurities in the impurity removal tank, they are adsorbed to the lower surface of the impurity removal tank 2 under the suction force of the electromagnet 3. When the predetermined working time is reached, the drive motor 4 (such as a stepping motor, etc.) is started to drive the rotating shaft 1 to rotate 180°, so that the impurity removal tank 2 with the notch facing downward is rotated to the notch facing upward (refer to Figure 5 ). At this time, the electromagnet 3 is closed, and the iron impurities adsorbed on the impurity removal trough 2 lose suction and automatically slide to the bottom of the impurity removal trough 2. Then the lifting device 5 is started to lift the drive motor 4, thereby raising the rotating shaft 1 and the left end of the impurity removal trough 2 to an inclined state. The iron impurities in the impurity removal trough 2 automatically slide out from the right port of the impurity removal trough 2 under their own gravity, so that the impurity removal trough 2 is emptied. The movable joint of the universal joint 9 can not only enable the drive motor 4 to drive the rotating shaft to rotate, but also facilitate the bending between the motor shaft and the rotating shaft 1 after the drive motor 4 is raised. After completing the emptying of the impurity removal trough 2, the impurity removal trough 2 is restored to its initial state, and the electromagnet 3 is turned on to continue the impurity removal work. It should be noted that multiple impurity removal devices of the present embodiment can be set along the moving direction of the conveyor belt 8, and these impurity removal devices can work alternately with each other, so that there is an impurity removal device performing impurity removal work at any time to ensure the impurity removal effect.

[0029] In another embodiment, reference Figure 1 , Figure 2 and Figure 5 When the rotating shaft 1 is fixed at the center of the upper surface of the impurity removal trough 2, a sliding rod 101 with a diameter smaller than that of the rotating shaft 1 is used to replace the right part of the rotating shaft 1. The diameter of the sliding rod 101 can be 1 / 4 to 1 / 2 of the diameter of the rotating shaft 1, and other suitable sizes can also be selected as needed. At this time, the left end of the sliding rod 101 is concentrically fixedly connected to the right end face of the rotating shaft 1, and the sliding block 7 has a through hole on the sliding surface, which is sleeved on the right end of the sliding rod 101. This structure helps to reduce the collision between the iron impurities that slide down and are discharged and the rotating shaft 1 when the impurity removal trough 2 is tilted and emptied.

[0030] In another embodiment, reference Figure 6 The rotating shaft 1 of the cement raw material pre-grinding impurity removal device of the above-mentioned embodiment can also be fixed at one side edge of the impurity removal trough 2, so as to reduce the collision with the rotating shaft 1 when the impurity removal trough 2 is tilted to discharge the iron impurities collected therein.

[0031] In another embodiment, reference Figure 2 The impurity removal device before cement raw material grinding processing in the above-mentioned embodiment has vertical baffles 201 on both sides of the impurity removal trough 2 to prevent the impurity removal trough 2 from tilting to discharge the iron impurities collected therein and sliding out from the edges of the impurity removal trough 2 on both sides and falling into the mineral raw materials below again.

[0032] In another embodiment, reference Figure 1 and Figure 5 The cement raw material pre-grinding impurity removal device of the above-mentioned embodiment further includes a second bracket 10 fixed between the driving motor 4 and the conveyor belt 8. Specifically, referring to Figure 7 The upper end of the second bracket 10 is in a "U"-shaped groove, and the rotating shaft 1 is supported in the "U"-shaped groove, which helps to increase the bearing capacity of the rotating shaft 1 and ensure that the rotating shaft 1 is level.

[0033] In another embodiment, reference Figure 1 and Figure 5 A support plate 11 is fixed on the side wall of the second bracket 10, and the drive motor 4 is supported on the support plate 11. The telescopic rod of the lifting device 5 slides through the through hole on the support plate 11 and is fixedly connected to the bottom surface of the drive motor 4.

[0034] In another embodiment, reference Figure 1 and Figure 5 The cement raw material pre-grinding impurity removal device of the above-mentioned embodiment further includes a collection box 12 disposed below the end of the impurity removal tank 2, so as to collect iron impurities discharged from the port of the impurity removal tank 2. In addition, the first bracket 6 can be fixed on the collection box 12, and a discharge port is provided on the lower side wall of the collection box 12, so as to regularly clean the impurities collected in the collection box 12.

[0035] In another embodiment, reference Figure 1 and Figure 5 The cement raw material pre-grinding impurity removal device of the above-mentioned embodiment further includes a first vibration device 13 arranged on the outer wall surface of the impurity removal tank 2. When the impurity removal tank 2 is tilted, the first vibration device 13 can be started to promote the iron impurities in the impurity removal tank 2 to move to the bottom of the impurity removal tank 2.

[0036] In another embodiment, reference Figure 1 and Figure 5 The cement raw material pre-grinding impurity removal device of the above-mentioned embodiment further includes a second vibrating device 14 arranged below the conveyor belt 8, and the lower surface of the conveyor belt 8 contacts the vibration axis of the second vibrating device 14. The second vibrating device 14 should be arranged in front of the impurity removal device to vibrate and turn over the mineral raw materials on the conveyor belt 8, which helps to turn over the iron impurities therein to the surface for easy removal.

[0037] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cement raw material impurity removal device before grinding, characterized in that: include: A rotating shaft, a debris removal groove, an electromagnet, a driving motor, a lifting device, a first bracket and a slider; wherein; the rotating shaft is horizontally and horizontally arranged above the conveyor belt; the debris removal groove is a strip-shaped triangular groove-shaped structure, the rotating shaft is fixed on the upper surface of the debris removal groove, and the notch of the debris removal groove faces the conveyor belt below; the electromagnet is fixed on the outer wall surface of the debris removal groove and is located on the side of the rotating shaft; the motor shaft of the driving motor is connected to one end of the rotating shaft through a universal joint, and the driving motor is fixed on the vertical telescopic rod of the lifting device; the first bracket is located at the other end of the rotating shaft, the slider is rotatably connected to the first bracket, and the slider can rotate clockwise and counterclockwise; the slider is slidably sleeved on the other end of the rotating shaft, and the other end extends outside the debris removal groove.

2. The impurity removal equipment before cement raw material grinding processing according to claim 1 is characterized in that: A coaxially arranged sliding rod is fixed to the other end of the rotating shaft, and its diameter is smaller than that of the rotating shaft; the sliding block is slidably sleeved on the sliding rod.

3. The impurity removal equipment before cement raw material grinding processing according to claim 1 is characterized in that: Vertical baffles are provided at the edges of both sides of the impurity removal groove.

4. The equipment for removing impurities from cement raw materials before grinding according to claim 1, characterized in that: The upper end of the first bracket is a "U"-shaped structure, the slider is located in the "U"-shaped groove of the "U"-shaped structure, and the two side walls of the slider are rotatably connected to the "U"-shaped groove through a connecting rod so that the slider can rotate clockwise and counterclockwise.

5. The impurity removal equipment before cement raw material grinding processing according to claim 1 is characterized in that: It also includes a second bracket fixed between the driving motor and the conveyor belt, the upper end of which is in the shape of a "U"-shaped groove; the rotating shaft is supported in the "U"-shaped groove.

6. The impurity removal equipment before cement raw material grinding processing according to claim 5 is characterized in that: A support plate is fixed on the side wall of the second bracket, and the drive motor is supported on the support plate; the telescopic rod of the lifting device slides through the through hole on the support plate and is fixedly connected to the bottom surface of the drive motor.

7. The impurity removal equipment before cement raw material grinding processing according to claim 1 is characterized in that: It also includes a collecting box arranged below the end of the impurity removal trough.

8. The equipment for removing impurities from cement raw materials before grinding according to claim 7, characterized in that: The first bracket is fixed on the collection box.

9. The equipment for removing impurities from cement raw materials before grinding according to any one of claims 1 to 8, characterized in that: A first vibrating device is arranged on the outer wall surface of the impurity removal tank.

10. The equipment for removing impurities from cement raw materials before grinding according to any one of claims 1 to 8, characterized in that: A second vibrating device is arranged below the conveyor belt, and the lower surface of the conveyor belt contacts the vibrating shaft of the second vibrating device.

Images