Grinding machine for grinding bottom mud improving and repairing agent of river dredging project

Abstract

The utility model relates to a grinding machine for grinding a bottom mud improvement repairing agent in a river channel dredging project, which comprises a case, a cooling material guide ring plate, a cooling polishing ring plate and a closed ring plate are arranged on the inner wall of the case, a cooling chamber is formed among the cooling material guide ring plate, the cooling polishing ring plate, the closed ring plate and the inner wall of the case, and the cooling chamber is provided with a water inlet and a water outlet. The longitudinal section of the cooling material guiding annular plate and the longitudinal section of the cooling grinding annular plate are each of an isosceles trapezoid structure with the wide upper portion and the narrow lower portion, a rotating shaft is arranged in the center in the machine box, a rotating motor is connected to the top of the rotating shaft, a circular-truncated-cone-shaped fixing block with the wide upper portion and the narrow lower portion is installed on the rotating shaft, and a grinding disc is detachably installed on the outer wall of the circular-truncated-cone-shaped fixing block. The circular-truncated-cone-shaped fixing block and the grinding disc are located in the cooling grinding annular plate and are consistent in taper, a feeding port is formed in the top of the machine box, and a discharging port is formed in the bottom of the machine box. The grinding disc can be detachably mounted on the circular-truncated-cone-shaped fixing block through the connecting plate, so that the grinding disc is convenient to replace, and the grinding effect is prevented from being affected by excessive abrasion of the grinding disc.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding machine for grinding a bottom mud improvement and repair agent in a river channel dredging project. Background Art

[0002] In river dredging projects, sediment dredging is currently the most commonly used ex situ sediment treatment method. After dredging, it can effectively increase the capacity of the river and improve the flood control capacity of the river. The riverbed sediment contains a high amount of organic matter, and some even exceed the heavy metal standard. It is necessary to use sediment conditioners to treat the sediment harmlessly. Sediment conditioners use special bottom pretreatment preparations and are directly added to the surface of the water area after dredging for the improvement of the water area sediment. In order to efficiently mix with the sediment, it is necessary to use a grinder to grind the ecological restoration agent into powder at low temperature, and then mix it evenly with mineral powder, which is conducive to uniform spreading. Then the sediment is turned over manually or with a rotary tiller to mix the sediment conditioner and the sediment evenly.

[0003] The grinding disc of the existing grinder is prone to wear after being used for a period of time, resulting in a change in the grinding distance, which affects the grinding effect. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides a grinding machine for grinding a bottom mud improvement and repairing agent in a river channel desilting project.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A grinding machine for grinding a sediment improvement and repair agent for a river channel dredging project comprises a chassis, a cooling guide ring plate is arranged at the upper end of the inner wall of the chassis, a cooling grinding ring plate is connected to the lower end of the cooling guide ring plate, a closed ring plate is arranged between the bottom of the cooling grinding ring plate and the inner wall of the chassis, a cooling chamber is formed between the cooling guide ring plate, the cooling grinding ring plate, the closed ring plate and the inner wall of the chassis, a water inlet and a water outlet are arranged on the side wall of the chassis corresponding to the cooling chamber, and the longitudinal sections of the cooling guide ring plate and the cooling grinding ring plate are both isosceles trapezoidal structures that are wide at the top and narrow at the bottom The trapezoidal bevel of the cooling guide ring plate has a greater inclination than that of the trapezoidal bevel of the cooling grinding ring plate. A rotating shaft is provided in the center of the chassis, and a rotating motor is connected to the top of the rotating shaft. The rotating shaft passes through the cooling guide ring plate and the cooling grinding ring plate. A truncated cone-shaped fixed block which is wide at the top and narrow at the bottom is installed on the rotating shaft, and a grinding disk is detachably installed on the outer wall of the truncated cone-shaped fixed block. The truncated cone-shaped fixed block and the grinding disk are located inside the cooling grinding ring plate and have the same taper. A feed port is provided at the top of the chassis corresponding to the inclined plate of the cooling guide ring plate, and a discharge port is provided at the bottom of the chassis.

[0007] A plurality of connecting plates are evenly distributed on the circumference of the grinding disc, and the connecting plates are fixed to the top of the truncated cone-shaped fixing block by first bolts.

[0008] A filter is provided below the closed ring plate inside the chassis, a purge port is provided on one side of the filter and a collection box is provided on the other side of the side wall of the chassis, and an outlet for unqualified powder is provided at the bottom of the collection box.

[0009] A scraper is installed at the bottom of the rotating shaft, and the bottom of the scraper is arranged in contact with the upper surface of the filter net.

[0010] The beneficial effect of the utility model is that the grinding disc in the utility model can be detachably mounted on the truncated cone-shaped fixed block through the connecting plate, which is convenient for replacing the grinding disc and avoids excessive wear of the grinding disc affecting the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the connection between the truncated cone-shaped fixed block and the grinding disc;

[0013] In the figure: 1-chassis; 2-cooling guide ring plate; 3-cooling grinding ring plate; 4-closed ring plate; 5-cooling chamber; 6-water inlet; 7-water outlet; 8-rotating axis; 9-truncated cone-shaped fixed block; 10-grinding disc; 11-feeding port; 12-discharging port; 13-connecting plate; 14-first bolt; 15-baffle; 16-fixing plate; 17-second bolt; 18-filter screen; 19-purge port; 20-collecting box; 21-unqualified powder outlet; 22-scraper; 23-connecting screw; 24-nut; 25-cover plate; 26-protrusion; 27-rotating motor;

[0014] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0016] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] A grinding machine for grinding sludge improvement and repair agent for river dredging engineering, such as Figure 1 , Figure 2 As shown, it includes a chassis 1, a cooling guide ring plate 2, a cooling grinding ring plate 3, a closed ring plate 4, a cooling chamber 5, a water inlet 6, a water outlet 7, a rotating shaft 8, a truncated cone-shaped fixed block 9, a grinding disc 10, a feed port 11, a discharge port 12, a connecting plate 13, a first bolt 14, a baffle 15, a fixing plate 16, a second bolt 17, a filter screen 18, a purge port 19, a collecting box 20, an unqualified powder outlet 21, a scraper 22, a connecting screw 23, a nut 24, a cover plate 25, a protrusion 26 and a rotating motor 27.

[0020] A cooling guide ring plate 2 is provided at the upper end of the inner wall of the chassis 1, and a cooling and grinding ring plate 3 is connected to the lower end of the cooling guide ring plate 2. A closed ring plate 4 is provided between the bottom of the cooling and grinding ring plate 3 and the inner wall of the chassis 1. A cooling chamber 5 is formed between the cooling guide ring plate 2, the cooling and grinding ring plate 3, the closed ring plate 4 and the inner wall of the chassis 1. A water inlet 6 and a water outlet 7 are provided on the side wall of the chassis 1 corresponding to the cooling chamber 5. The longitudinal sections of the cooling guide ring plate 2 and the cooling and grinding ring plate 3 are both isosceles trapezoidal structures that are wider at the top and narrower at the bottom. The trapezoidal hypotenuse of the cooling guide ring plate 2 is larger than that of the cooling and grinding ring plate 3. The trapezoidal hypotenuse of the ring plate 3 has a large inclination. A rotating shaft 8 is provided in the center of the chassis 1. A rotating motor 27 is connected to the top of the rotating shaft 8. The rotating shaft 8 passes through the cooling guide ring plate 2 and the cooling grinding ring plate 3. A truncated cone-shaped fixed block 9 which is wide at the top and narrow at the bottom is installed on the rotating shaft 8. A grinding disc 10 is detachably installed on the outer wall of the truncated cone-shaped fixed block 9. The truncated cone-shaped fixed block 9 and the grinding disc 10 are located inside the cooling and grinding ring plate 3 and have the same taper. A feed port 11 is provided at the top of the chassis 1 corresponding to the inclined plate of the cooling guide ring plate 2, and a discharge port 12 is provided at the bottom of the chassis 1.

[0021] A plurality of connecting plates 13 are evenly distributed around the circumference of the grinding disc 10 , and the connecting plates 13 are fixed to the top of the truncated cone-shaped fixing block 9 by first bolts 14 .

[0022] The bottom mud improvement and repairing agent to be ground enters the inside of the chassis 1 from the feed inlet 11, is introduced into the gap between the grinding disc 10 and the cooling grinding ring plate 3 through the inclined plate of the cooling guide ring plate 2, and the grinding operation is carried out. During the process, cooling water is continuously introduced into the cooling chamber 5 to ensure low-temperature grinding. The grinding disc 10 can be detachably mounted on the truncated cone-shaped fixed block 9 through the connecting plate 13, which makes it easy to replace the grinding disc 10 and avoids excessive wear of the grinding disc 10 affecting the grinding effect.

[0023] A baffle 15 is provided on the top of the truncated cone-shaped fixing block 9 on the rotating shaft 8 and a fixing plate 16 is provided on the bottom of the truncated cone-shaped fixing block 9 . The fixing plate 16 and the bottom of the truncated cone-shaped fixing block 9 are fixed by a plurality of second bolts 17 .

[0024] The truncated cone-shaped fixing block 9 is also easy to disassemble and replace due to the above structure, which is convenient for maintenance.

[0025] A filter screen 18 is provided below the closed ring plate 4 inside the chassis 1, a purge port 19 is provided on one side of the filter screen 18 and a collection box 20 is provided on the other side of the side wall of the chassis 1, and an unqualified powder outlet 21 is provided at the bottom of the collection box 20. After the ground powder is filtered through the filter screen 18, qualified products are discharged from the discharge port 12, and unqualified powder is finally blown into the collection box 20 by the high-pressure gas entering through the purge port 19 for collection, and can be ground again.

[0026] In order to ensure that the filter screen 18 is not blocked and to facilitate the discharge of powder, a scraper 22 is installed at the bottom of the rotating shaft 8. The bottom of the scraper 22 is arranged to fit the upper surface of the filter screen 18. The scraper 22 continuously scrapes the powder to help it to be better screened and discharged.

[0027] One end of the scraper 22 is provided with a connecting screw 23, which passes through the rotating shaft 8 and is fixed by a nut 24. The scraper 22 can be installed and removed as needed, and is more flexible.

[0028] A cover plate 25 is hinged on the top of the feed inlet 11 to prevent powder from overflowing during the grinding process and affecting the working environment.

[0029] A plurality of protrusions 26 are evenly distributed on the outer wall of the grinding disc 10 to enhance the degree of grinding.

[0030] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A grinding machine for grinding sludge improvement and repair agent for river dredging engineering, characterized in that: The invention comprises a case (1), wherein a cooling guide ring plate (2) is provided at the upper end of the inner wall of the case (1), a cooling grinding ring plate (3) is connected to the lower end of the cooling guide ring plate (2), a closed ring plate (4) is provided between the bottom of the cooling grinding ring plate (3) and the inner wall of the case (1), a cooling chamber (5) is formed between the cooling guide ring plate (2), the cooling grinding ring plate (3), the closed ring plate (4) and the inner wall of the case (1), a water inlet (6) and a water outlet (7) are provided on the side wall of the case (1) corresponding to the cooling chamber (5), the longitudinal cross-sections of the cooling guide ring plate (2) and the cooling grinding ring plate (3) are both isosceles trapezoidal structures that are wide at the top and narrow at the bottom, and the trapezoidal hypotenuse of the cooling guide ring plate (2) is larger than the cooling chamber (5). The trapezoidal bevel of the grinding ring plate (3) has a large inclination. A rotating shaft (8) is provided in the center of the chassis (1). A rotating motor (27) is connected to the top of the rotating shaft (8). The rotating shaft (8) passes through the inside of the cooling guide ring plate (2) and the cooling grinding ring plate (3). A truncated cone-shaped fixed block (9) which is wide at the top and narrow at the bottom is installed on the rotating shaft (8). A grinding disc (10) is detachably installed on the outer wall of the truncated cone-shaped fixed block (9). The truncated cone-shaped fixed block (9) and the grinding disc (10) are located inside the cooling grinding ring plate (3) and have the same taper. A feed port (11) is provided at the top of the chassis (1) corresponding to the inclined plate of the cooling guide ring plate (2), and a discharge port (12) is provided at the bottom of the chassis (1).

2. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 1 is characterized in that: A plurality of connection plates (13) are evenly distributed around the circumference of the grinding disc (10), and the connection plates (13) are fixed to the top of the truncated cone-shaped fixing block (9) by means of first bolts (14).

3. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 2 is characterized in that: A baffle (15) is provided on the rotating shaft (8) at the top of the truncated cone-shaped fixed block (9) and a fixing plate (16) is provided at the bottom of the truncated cone-shaped fixed block (9). The fixing plate (16) and the bottom of the truncated cone-shaped fixed block (9) are fixed by a plurality of second bolts (17).

4. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 3 is characterized in that: A filter screen (18) is provided inside the chassis (1) below the closed ring plate (4); a purge port (19) is provided on one side of the filter screen (18) and a collection box (20) is provided on the other side of the side wall of the chassis (1); and a defective powder outlet (21) is provided at the bottom of the collection box (20).

5. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 4 is characterized in that: A scraper (22) is installed at the bottom of the rotating shaft (8), and the bottom of the scraper (22) is arranged in contact with the upper surface of the filter screen (18).

6. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 5, characterized in that: A connecting screw (23) is provided at one end of the scraper (22), and the connecting screw (23) passes through the rotating shaft (8) and is fixed by a nut (24).

7. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 6 is characterized in that: A cover plate (25) is hingedly connected to the top of the feed opening (11).

8. The grinding machine for grinding the sediment improvement and repairing agent for river dredging engineering according to claim 7, characterized in that: A plurality of protrusions (26) are evenly distributed on the outer wall of the grinding disc (10).

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