A limestone pre-homogenization device

Abstract

This utility model relates to the field of homogenization equipment technology, specifically a limestone pre-homogenization device, including a pre-homogenization box, a grinding mechanism, and a crushing mechanism. The pre-homogenization box is equipped with a material leveling mechanism, which consists of a rotating shaft driven by a drive unit and connected to the pre-homogenization box, and multiple sets of stirring blades mounted on the rotating shaft. Multiple grinding mechanisms are evenly installed at the top of the pre-homogenization box. The crushing mechanism is located at the top of the grinding mechanism. This utility model facilitates the initial crushing of limestone raw materials and their conveying to the grinding mechanism through the crushing mechanism; it also facilitates further crushing of the limestone raw materials through the grinding mechanism, facilitating subsequent pre-homogenization; and the material leveling mechanism facilitates the rapid and uniform mixing of the crushed limestone raw materials, improving pre-homogenization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of homogenization equipment technology, specifically a limestone pre-homogenization device. Background Technology

[0002] Limestone pre-homogenization is a process in cement production that involves mixing powdered limestone, coal, sulfur slag, and other materials in a specific ratio. Chinese Patent CN222658501U discloses a limestone pre-homogenization device, comprising a homogenizing mixing drum and a mixing frame rotatably connected within the mixing drum. A pretreatment drum is located at the top of the mixing drum, and the pretreatment drum includes a mixing tank and a feed pipe fixedly connected to the bottom of the mixing tank. A drive box is fixedly inserted through the top of the mixing tank, and at least two pairs of conveying pipes for limestone raw materials are fixedly inserted through the mixing tank. A first auger shaft is rotatably connected inside the conveying pipes. This invention solves the technical problem that during limestone homogenization, the input of multiple raw materials without proper mixing intervention results in severe stockpiling of individual raw materials within the tank, and the differences in particle size among the raw materials affect the efficiency and quality of homogenization, thus hindering production efficiency.

[0003] However, the above-mentioned publicly disclosed solutions have the following shortcomings: Since the particle size of different limestone raw materials is inconsistent, multiple sets of conveying pipes are used to transport and premix various limestone raw materials before crushing and grinding. This method will result in low uniformity of mixing of limestone raw materials with different particle sizes, and will prolong the crushing time and reduce the pre-homogenization efficiency. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a limestone pre-homogenization device.

[0005] The technical solution of this utility model is as follows: A limestone pre-homogenization device includes a pre-homogenization box, on which a material equalization mechanism is provided. The material equalization mechanism consists of a rotating shaft connected to the pre-homogenization box by a drive unit and multiple sets of stirring blades installed on the rotating shaft; a grinding mechanism, which is provided in multiple sets, and the multiple sets of grinding mechanisms are evenly installed at the top of the pre-homogenization box. The grinding mechanism consists of a grinding box installed at the top of the pre-homogenization box, an upper grinding seat installed at the feed end of the grinding box, a lower grinding seat corresponding to the upper grinding seat, and a drive assembly for driving the lower grinding seat to rotate. The cross-sectional diameter of the upper grinding seat increases sequentially from top to bottom. Multiple sets of grinding protrusions are provided on the inner wall of the upper grinding seat and the outer wall of the lower grinding seat. The drive assembly is located on the inner wall of the grinding box, and the end of the drive assembly located on the grinding box and away from the lower grinding seat is connected to the drive unit; and a crushing mechanism, which is located at the top of the grinding mechanism. The crushing mechanism consists of a crushing box, a rotating rod connected to the crushing box by a motor, and a spiral crushing blade installed on the rotating rod. The output end of the crushing box corresponds to the input end of the grinding box.

[0006] Preferably, the stirring blades have different shapes and multiple sets of turbulence holes are formed on the stirring blades.

[0007] Preferably, the material homogenizing mechanism further includes a grate plate installed on the inner wall of the pre-homogenizing box, the grate plate having multiple sets of grate holes, and a rotating shaft rotatably connecting the grate plate; and a mounting base installed on the rotating shaft, the bottom end of the mounting base being provided with a brush, the brush bristles being in contact with the grate plate.

[0008] Preferably, the top of the mounting base is provided with multiple sets of levers at an angle.

[0009] Preferably, a guide pipe is inclinedly connected between the output end of the grinding box and the input end of the pre-homogenizing box.

[0010] Preferably, the drive assembly includes a support base mounted on the inner wall of the grinding chamber; a support shaft, one end of which is rotatably connected to the support base and the other end of which is connected to the lower grinding chamber; and a transmission rod rotatably connected to the grinding chamber, wherein a first transmission element is provided between one end of the transmission rod and the support shaft, and a second transmission element is provided between the other end of the transmission rod and the rotating shaft.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: the crushing mechanism facilitates the initial crushing of limestone raw materials and their conveying to the grinding mechanism; the grinding mechanism facilitates the further crushing of limestone raw materials, which is convenient for subsequent pre-homogenization; the material homogenizing mechanism facilitates the rapid and uniform mixing of various crushed limestone raw materials, thereby improving the pre-homogenization efficiency. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a cross-sectional view of the present invention;

[0014] Figure 3 This is a schematic diagram of the grinding mechanism of this utility model.

[0015] Figure 4 This is a schematic diagram of the material leveling mechanism of this utility model.

[0016] Reference numerals in the attached drawings: 1. Pre-homogenization box; 101. Grate plate; 2. Rotating shaft; 201. Mounting base; 202. Brush plate; 203. Brush; 204. Stirring blade; 3. Grinding box; 301. Feed guide pipe; 302. Upper grinding base; 303. Lower grinding base; 4. Support shaft; 401. Support base; 402. Transmission rod; 5. Crushing box; 501. Rotating rod; 502. Spiral crusher blade. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 3 As shown, the present invention proposes a limestone pre-homogenization device, including a pre-homogenization box 1, a grinding mechanism, and a crushing mechanism. A material leveling mechanism is provided on the pre-homogenization box 1. The material leveling mechanism consists of a rotating shaft 2 connected to the pre-homogenization box 1 via a drive unit and multiple sets of stirring blades 204 mounted on the rotating shaft 2. The drive unit is existing technology and can drive the rotating shaft 2 to rotate along the pre-homogenization box 1. Multiple grinding mechanisms are provided, evenly installed at the top of the pre-homogenization box 1. Each grinding mechanism consists of a grinding box 3 installed at the top of the pre-homogenization box 1, an upper grinding seat 302 installed at the feed end of the grinding box 3, a lower grinding seat 303 corresponding to the upper grinding seat 302, and a drive assembly for rotating the lower grinding seat 303. The cross-sectional diameter of the grinding seat 302 increases from top to bottom. Multiple grinding protrusions are provided on the inner wall of the upper grinding seat 302 and the outer wall of the lower grinding seat 303. The drive assembly is located on the inner wall of the grinding box 3, and the end of the drive assembly away from the lower grinding seat 303 is connected to the drive unit. The crushing mechanism is located at the top of the grinding mechanism. The crushing mechanism consists of a crushing box 5, a rotating rod 501 connected to the crushing box 5 by a motor drive, and a spiral crushing blade 502 installed on the rotating rod 501. The output end of the crushing box 5 corresponds to the input end of the grinding box 3. It should be noted that the cross-sectional diameter of the rotating rod 501 gradually increases from the direction away from the grinding box 3 to the direction closer to the grinding box 3, which facilitates the conveying of the crushed raw materials to the discharge port.

[0019] Furthermore, the stirring blade 204 has different shapes and multiple sets of turbulence holes are provided on the stirring blade 204 to improve the uniformity of stirring.

[0020] Furthermore, a guide pipe 301 is inclinedly connected between the output end of the grinding box 3 and the input end of the pre-homogenizing box 1 to facilitate guiding the crushed limestone raw material into the pre-homogenizing box 1.

[0021] Furthermore, the drive assembly includes a support base 401, a support shaft 4, and a transmission rod 402. The support base 401 is installed on the inner wall of the grinding chamber 3. One end of the support shaft 4 is rotatably connected to the support base 401, and the other end is connected to the lower grinding chamber 303. The transmission rod 402 is rotatably connected to the grinding chamber 3. A first transmission component is provided between one end of the transmission rod 402 and the support shaft 4. The first transmission component consists of two sets of meshing first bevel gears. A second transmission component is provided between the other end of the transmission rod 402 and the rotating shaft 2. It should be noted that the grinding mechanism can be configured with three or four sets. A second bevel gear is provided on the end of each set of transmission rods 402 away from the support shaft 4, and a third bevel gear is provided on the rotating shaft 2. All sets of second bevel gears are meshed with the third bevel gear. Protective boxes are provided between the support shaft 4 and the transmission rod 402, and between the transmission rod 402 and the drive unit, to protect each set of bevel gears.

[0022] In this embodiment, the controller starts the drive unit to drive the rotating shaft 2 to rotate along the pre-homogenization box 1. The rotation of the rotating shaft 2 drives multiple sets of stirring blades 204 to rotate. At the same time, the rotation of the rotating shaft 2 drives the transmission rod 402 to rotate. The rotation of the transmission rod 402 drives the support shaft 4 to rotate, thereby driving the lower grinding seat 303 to rotate along the upper grinding seat 302.

[0023] Multiple sets of limestone raw materials are poured into the inlets of each crushing box 5. The motor driven by the controller rotates the rotating rod 501, which in turn rotates the spiral crusher 502. The rotating rod 501 and the spiral crusher 502 simultaneously perform preliminary crushing of the raw materials and convey them to the outlet. The preliminarily crushed limestone raw materials enter the space between the upper grinding seat 302 and the lower grinding seat 303 through the inlet of the grinding box 3. The grinding protrusions between the lower grinding seat 303 and the upper grinding seat 302 further grind the preliminarily crushed material and adjust the particle size. The limestone raw materials that are crushed again fall down along the lower grinding seat 303 and enter the pre-homogenization box 1 through the guide pipe 301. The different limestone raw material powders are fully mixed by multiple sets of rotating stirring blades 204. After the mixing is completed, the electric valve at the outlet of the pre-homogenization box 1 is opened to discharge the uniformly mixed raw materials.

[0024] Example 2

[0025] like Figure 2 and Figure 4 As shown, the limestone pre-homogenization equipment proposed in this utility model, compared with Embodiment 1, further includes a grate plate 101 and a mounting base 201 in the material homogenization mechanism; the grate plate 101 is installed on the inner wall of the pre-homogenization box 1, and multiple sets of grate holes are opened on the grate plate 101; the rotating shaft 2 is rotatably connected to the grate plate 101 through a bearing; the mounting base 201 is installed on the rotating shaft 2, and a brush 203 is provided at the bottom end of the mounting base 201, and the bristles of the brush 203 are in contact with the grate plate 101.

[0026] Furthermore, the top of the mounting base 201 is provided with multiple sets of deflectors 202 at an angle, which are used to rotate and disperse the falling limestone raw materials so that they fall evenly onto the grate plate 101.

[0027] In this embodiment, the limestone raw material discharged from the multiple sets of feed pipes 301 falls towards the top center of the grate plate 101 through the grate plate 101. When the rotating shaft 2 rotates, it drives the multiple sets of baffles 202 to rotate. Under the action of centrifugal force, the falling limestone raw material powder is dispersed and falls evenly onto the grate plate 101. The raw material powder then falls evenly through the multiple sets of grate holes, and is then evenly stirred again by the multiple sets of stirring blades 204, improving the mixing uniformity. When the brush 203 rotates along the grate plate 101, it can push the powder remaining on the grate plate 101 down along the grate holes, avoiding waste.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A limestone pre-homogenization device, characterized in that, include The pre-homogenization box (1) is equipped with a material leveling mechanism, which consists of a rotating shaft (2) that is driven and connected to the pre-homogenization box (1) by a drive unit and multiple sets of stirring blades (204) installed on the rotating shaft (2). The grinding mechanism is provided in multiple sets, which are evenly installed on the top of the pre-homogenizing box (1). The grinding mechanism consists of a grinding box (3) installed on the top of the pre-homogenizing box (1), an upper grinding seat (302) installed on the feed end of the grinding box (3), a lower grinding seat (303) corresponding to the upper grinding seat (302), and a driving component for driving the lower grinding seat (303) to rotate. The cross-sectional diameter of the upper grinding seat (302) increases from top to bottom. Multiple sets of grinding protrusions are provided on the inner wall of the upper grinding seat (302) and the outer wall of the lower grinding seat (303). The driving component is located on the inner wall of the grinding box (3), and the end of the drive component that is on the part away from the lower grinding seat (303) is connected to the driving unit for transmission. The crushing mechanism is located at the top of the grinding mechanism. The crushing mechanism consists of a crushing box (5), a rotating rod (501) that is driven by a motor to rotate and connect to the crushing box (5), and a spiral crushing blade (502) installed on the rotating rod (501). The output end of the crushing box (5) corresponds to the input end of the grinding box (3).

2. The limestone pre-homogenization equipment according to claim 1, characterized in that, The stirring blades (204) have different shapes and multiple sets of turbulence holes are opened on the stirring blades (204).

3. The limestone pre-homogenization equipment according to claim 2, characterized in that, The material leveling mechanism also includes A grate plate (101) is installed on the inner wall of the pre-homogenization box (1). Multiple sets of grate holes are opened on the grate plate (101). A rotating shaft (2) is rotatably connected to the grate plate (101). And a mounting base (201) is mounted on the rotating shaft (2). A brush (203) is provided at the bottom of the mounting base (201), and the bristles of the brush (203) are in contact with the grate plate (101).

4. The limestone pre-homogenization equipment according to claim 3, characterized in that, The top of the mounting base (201) is inclined with multiple sets of levers (202).

5. The limestone pre-homogenization equipment according to claim 1, characterized in that, A guide pipe (301) is inclinedly connected between the output end of the grinding box (3) and the input end of the pre-homogenizing box (1).

6. The limestone pre-homogenization equipment according to claim 1, characterized in that, Driver components include Support base (401), which is installed on the inner wall of grinding box (3); The support shaft (4) is rotatably connected at one end to the support seat (401) and at the other end to the lower grinding seat (303); And a transmission rod (402), which is rotatably connected to the grinding box (3). A first transmission component is provided between one end of the transmission rod (4) and the support shaft (4), and a second transmission component is provided between the other end of the transmission rod (402) and the rotating shaft (2).

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