Raw material impurity removal device for cement retarding grinding aid production

Abstract

The utility model relates to the technical field of cement production equipment, and discloses a raw material impurity removal device for cement retarding grinding aid production, which comprises a box body, a feed hopper arranged at the top of the box body, a stirring barrel rotatably arranged in the feed hopper, a screen plate arranged at the bottom of the feed hopper, and stirring rods arranged around the stirring barrel, a first motor is connected outside the box body, and the output end of the first motor is connected with the stirring barrel; two material guide plates are arranged below the screening plate, a cylinder is arranged below the two material guide plates, the cylinder is rotationally arranged in the box body, a magnetic separation block is arranged in the cylinder, a material distributing plate is arranged at the lower end of the cylinder, and a scraping plate is arranged at the top of the material distributing plate. The device is convenient and efficient to operate, manual treatment is replaced, and raw materials are subjected to screening and demagnetizing treatment, so that the quality of the raw materials is improved, and the yield of cement retarding grinding aid production is improved.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, and in particular to a raw material impurity removal device for the production of cement retarder grinding aid. Background Technology

[0002] Cement retarder grinding aids are chemical additives used to improve cement performance. Their main function is to extend the initial and final setting times of cement, thereby improving its stability during long-term storage or long-distance transportation. These grinding aids are typically composed of various chemical components, including industrial salt, white sugar, triethanolamine, glycerol, and diethanolmonoisopropanolamine. These components work synergistically to achieve a retarding effect and optimize the particle size distribution and flowability of the cement.

[0003] Before the raw materials are mixed, they need to be cleaned to remove impurities. Existing impurity removal equipment requires manual cleaning, which is cumbersome and labor-intensive. At the same time, raw materials such as industrial salt contain a large amount of iron filings during mining and transportation. When iron impurities enter the processing area with the raw materials, they can easily damage the machines, causing them to malfunction and reducing the yield of cement retarder grinding aids.

[0004] Therefore, those skilled in the art urgently need to develop a raw material impurity removal device for the production of cement retarder grinding aids. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a raw material impurity removal device for the production of cement retarder grinding aids.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a raw material impurity removal device for cement retarder grinding aid production, comprising a box body, a feeding hopper at the top of the box body, a stirring tank rotatably disposed inside the feeding hopper, a screening plate at the bottom of the feeding hopper, the screening plate having a semi-circular structure with its center coinciding with the stirring tank, multiple stirring rods disposed around the stirring tank, a first motor connected to the outside of the box body, the output end of the first motor extending into the inside of the box body and connected to the stirring tank; two guide plates disposed below the screening plate, the two guide plates being fixedly connected to the inside of the box body, and the two guide plates tilting downwards toward each other, with a certain gap between the two guide plates; a magnetic separation mechanism disposed below the two guide plates, the magnetic separation mechanism comprising a cylinder, the cylinder being rotatably disposed inside the box body, the inside of the cylinder having a hollow structure, and a magnetic separation block disposed inside the cylinder, a distribution plate disposed at the lower end of the cylinder, a scraper disposed at the top of the distribution plate, the scraper abutting against the cylinder at the end near the cylinder.

[0007] Preferably, there are two magnetic separation mechanisms, which are symmetrically arranged on the left and right sides of the housing.

[0008] Preferably, the two cylinders are located directly below the two guide plates, the two dividing plates divide the bottom of the box into three storage chambers, and the two scrapers are inclined downwards toward the ends that are far apart from each other.

[0009] Preferably, both cylinders are rotatably connected to the housing via cylinder shafts, and both cylinder shafts extend out of the housing and are connected to drive gears. The two drive gears mesh with each other. A second motor is connected to the outside of the housing, and the output end of the second motor is connected to the drive gear on the left.

[0010] Preferably, waste bins are provided on both the left and right sides of the box body, and baffles are connected to both the left and right sides of the feed hopper by hinges.

[0011] Preferably, each of the multiple stirring rods has a groove at the end furthest from the mixing tank, and a telescopic plate is slidably installed inside the groove. Each of the multiple stirring rods is equipped with a locking screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the stirring rod rotates to agitate and turn the raw materials, facilitating screening by the screening plate. Two cylinders rotate in opposite directions, allowing the raw materials to fall into the central storage chamber. Iron filings, as the cylinders rotate, are scraped off by scrapers and collected in the side storage chambers. Material screened out by the screening plate is cleaned by a pull-out telescopic plate and scraped into a waste bin. This device is convenient and efficient, replacing manual processing. It screens and demagnetizes the raw materials, improving their quality and thus increasing the yield of cement retarder grinding aid production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front structural sectional view of the present invention;

[0016] Figure 3 This is a structural diagram of the stirring rod described in this utility model.

[0017] In the diagram: 1-box body; 2-feed hopper; 3-mixing tank; 4-first motor; 5-mixing rod; 51-telescopic plate; 52-locking screw; 6-screening plate; 7-baffle; 8-guide plate; 9-waste bin; 10-cylinder; 11-magnetic separator; 12-distribution plate; 13-scraper; 14-drive gear; 15-second motor. Detailed Implementation

[0018] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical 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 based on the specific circumstances.

[0021] Please see Figures 1-3 This utility model provides an embodiment: a raw material impurity removal device for cement retarder grinding aid production, comprising a housing 1, a feeding hopper 2 at the top of the housing 1, a stirring tank 3 rotating inside the feeding hopper 2, a screening plate 6 at the bottom of the feeding hopper 2, the screening plate 6 having a semi-circular structure with its center coinciding with the stirring tank 3, a plurality of stirring rods 5 around the stirring tank 3, a first motor 4 connected to the outside of the housing 1, the output end of the first motor 4 extending into the interior of the housing 1 and connected to the stirring tank 3; a guide plate 8 is provided below the screening plate 6, and the guide plate 8 has a plurality of... There are two guide plates 8, which are fixedly connected to the inside of the housing 1. The two guide plates 8 are inclined downwards towards each other, and there is a certain gap between the two guide plates 8. A magnetic separation mechanism is provided below the two guide plates 8. The magnetic separation mechanism includes a cylinder 10, which is rotatably set inside the housing 1. The inside of the cylinder 10 is a hollow structure, and a magnetic separation block 11 is provided inside the cylinder 10. A distribution plate 12 is provided at the lower end of the cylinder 10, and a scraper 13 is provided at the top of the distribution plate 12. The end of the scraper 13 near the cylinder 10 abuts against the cylinder 10. The scraper 13 is a wear-resistant strip made of high-polymer plastic material.

[0022] Furthermore, there are two magnetic separation mechanisms, symmetrically arranged on the left and right sides of the housing 1. The two cylinders 10 are located directly below the two guide plates 8, and the two dividing plates 12 divide the bottom of the housing 1 into three storage chambers. The two scrapers 13 are both inclined downwards towards the opposite ends. The raw material passing through the screening plate 6 slides down the guide plates 8 to the magnetic separation mechanism. The iron filings in the raw material are adsorbed onto the cylinders 10, and the raw material falls into the middle storage chamber after passing through the two cylinders 10. As the cylinders 10 rotate, the iron filings are caught by the scrapers 13 and fall into the storage chambers on both sides for collection.

[0023] Furthermore, both cylinders 10 are rotatably connected to the housing 1 via cylindrical shafts, and both cylindrical shafts extend out of the housing 1 and are connected to drive gears 14. The two drive gears 14 mesh with each other. A second motor 15 is connected to the outside of the housing 1, and the output end of the second motor 15 is connected to the drive gear 14 on the left. The second motor 15 drives the drive gear 14 on the left to rotate. Since the two drive gears 14 mesh with each other, they drive the two cylinders 10 to rotate in opposite directions: the left cylinder 10 rotates counterclockwise, and the right cylinder 10 rotates clockwise.

[0024] Furthermore, waste bins 9 are provided on both the left and right sides of the housing 1, and baffles 7 are connected to both the left and right sides of the feed hopper 2 via hinges. The baffles 7 can be flipped upwards to prevent materials from spilling during the mixing process.

[0025] Furthermore, each of the multiple stirring rods 5 has a chute at the end furthest from the mixing tank 3. A telescopic plate 51 is slidably installed inside the chute. Each of the multiple stirring rods 5 is equipped with a locking screw 52. By pulling out the telescopic plate 51 and tightening it with the locking screw 52, ​​the material screened out inside the feed hopper 2 can be scraped out. At the same time, the baffle 7 is flipped down, and the scraped material falls into the waste bin 9.

[0026] The working principle of this utility model is as follows: When using this utility model, the raw material to be impurities removed is poured into the feed hopper 2, and the first motor 4 is started. The first motor 4 drives the mixing tank 3 to rotate, and the mixing tank 3 drives the mixing rod 5 to rotate, thereby stirring and turning the raw material to facilitate passing through the screening plate 6. The baffle 7 is flipped up to prevent the material from spilling during the stirring process. The raw material passing through the screening plate 6 slides down the guide plate 8 to the magnetic separation mechanism. The second motor 15 is started, and the second motor 15 drives the left drive gear 14 to rotate. The two drive gears 14 mesh with each other, thus driving the two cylinders 10 to rotate in opposite directions. The left cylinder 10 rotates counterclockwise, and the right cylinder 10 rotates clockwise. The iron filings in the raw material are adsorbed into the cylinders 10, and the raw material falls into the middle storage chamber after passing through the two cylinders 10. As the cylinders 10 rotate, the iron filings are caught by the scraper 13 and fall into the storage chambers on both sides for collection.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A raw material impurity removal device for the production of cement retarder grinding aid, comprising a housing (1), characterized in that: The top of the box (1) is provided with a feeding hopper (2), and the inside of the feeding hopper (2) is provided with a stirring barrel (3). The bottom of the feeding hopper (2) is provided with a screening plate (6). The screening plate (6) has a semi-circular structure and its center coincides with the stirring barrel (3). The stirring barrel (3) is provided with multiple stirring rods (5) around its perimeter. The outside of the box (1) is connected to a first motor (4). The output end of the first motor (4) extends into the inside of the box (1) and is connected to the stirring barrel (3). Below the screening plate (6) is a guide plate (8), and there are two guide plates (8). The two guide plates (8) are fixedly connected to the inside of the box (1), and the two guide plates (8) are inclined downward toward the end that is close to each other, and there is a certain gap between the two guide plates (8). A magnetic separation mechanism is provided below the two guide plates (8). The magnetic separation mechanism includes a cylinder (10). The cylinder (10) is rotatably disposed inside the box body (1). The inside of the cylinder (10) is a hollow structure, and a magnetic separation block (11) is provided inside the cylinder (10). A material distribution plate (12) is provided at the lower end of the cylinder (10). A scraper (13) is provided at the top of the material distribution plate (12). The scraper (13) abuts against the cylinder (10) at one end near the cylinder (10).

2. The raw material impurity removal device for cement retarder and grinding aid production according to claim 1, characterized in that: The number of magnetic separation mechanisms is two, and they are symmetrically arranged on the left and right sides of the box (1).

3. The raw material impurity removal device for cement retarder and grinding aid production according to claim 2, characterized in that: Two cylinders (10) are located directly below two guide plates (8), two dividing plates (12) divide the bottom of the box (1) into three storage chambers, and two scrapers (13) are inclined downward toward the opposite ends.

4. The raw material impurity removal device for cement retarder and grinding aid production according to claim 3, characterized in that: Both cylinders (10) are rotatably connected to the housing (1) via cylinder shafts, and both cylinder shafts extend out of the housing (1) and are connected to the drive gear (14). The two drive gears (14) mesh with each other. A second motor (15) is connected to the outside of the housing (1), and the output end of the second motor (15) is connected to the drive gear (14) on the left.

5. The raw material impurity removal device for cement retarder and grinding aid production according to claim 1, characterized in that: Waste bins (9) are provided on both the left and right sides of the box (1), and baffles (7) are connected to both the left and right sides of the feed hopper (2) by hinges.

6. The raw material impurity removal device for cement retarder and grinding aid production according to claim 5, characterized in that: Each of the multiple stirring rods (5) has a groove at the end away from the mixing tank (3), and a telescopic plate (51) is slidably installed inside the groove. Each of the multiple stirring rods (5) is equipped with a locking screw (52).

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