A warehouse partition plate of a single-layer ball mill for soda industry

Abstract

The application discloses a kind of single-layer ball mill's compartment board of preventing blockage for soda industry, comprising: grate, with several, grate overhead projection is presented fan shape, and fan shape is rounded end near the end of circle center, and the end of circle center far away is circular arc end, several grate sequentially arranged along the circumferential direction and form circular hole in the center of disc and are arranged in disc, grate is close to the fixed hole of rounded end, and circular arc end of fan shape extends and forms arc side plate in the direction perpendicular to grate;Grate is close to the grate slit of radial direction interval arrangement and is opened in the direction of rounded end to circular arc end, and the depth of grate slit near the center of grate is greater than the depth of grate slit at rounded end and circular arc end;Grate slit is presented ladder structure, and large at feeding end, and small at discharge end;Cleaning sliding block is wedge-shaped block structure, and is slidably arranged in the discharge end of grate slit.The application is very good to solve the problem of compartment board blockage, and improves the production efficiency of ball mill.

Description

TECHNICAL FIELD

[0001] The application relates to a ball mill device in the soda ash industry prepared by the ammonia soda method, and more particularly to a baffle plate of a single-layer ball mill for the soda ash industry. BACKGROUND

[0002] In soda ash production enterprises in China, the production process of soda ash prepared by the ammonia soda method is mainly used. However, in the existing technology, when soda ash is produced by the ammonia soda method, three kinds of solid waste, i.e., returned sand, returned stone and crushed stone, are inevitably generated in the limestone calcination process. Since the physicochemical properties of the returned sand, the returned stone and the crushed stone cause serious pollution to the environment, the returned sand, the returned stone and the crushed stone are wet ground by using a wet type lattice ball mill.

[0003] The baffle plate of the wet type lattice ball mill is one of the most important installation components of the ball mill, is installed in the inner cylinder, and has the following functions: the ball mill is divided into multiple compartments, and various sizes of grinding bodies are roughly separated. The grinding bodies are required to mainly have an impact crushing effect at the beginning and gradually transit to mainly have a grinding effect in the discharge direction, so that the grinding capacity of the grinding bodies is fully utilized. The grate gap of the baffle plate of the ball mill determines the filling degree of the material in the mill, and thus controls the flow rate of the material in the mill. The baffle plate of the ball mill has a screening effect on the material, can prevent large particles from entering the area with weak impact force, otherwise, the material blocks that cannot be crushed will be accumulated, the grinding effect is seriously affected, or the material that has not been finely ground is discharged from the mill, the product fineness is unqualified, and the baffle plate of the ball mill is one of the important factors affecting the output of the ball mill. In the actual working process of the ball mill, the following problems exist:

[0004] 1. The particle size of the returned sand, the returned stone and the crushed stone generated after the calcination of the limestone is about 20mm, after the grinding of the first compartment, a part of the material is adhered to the inner wall of the grate gap, so that the grate gap is narrowed, finally, the ventilation and material conveying capacity of the baffle plate is reduced, the material is over-ground, and the grinding efficiency of the ball mill is reduced, and the output of the mill is affected;

[0005] 2. Since the impact effect of the grinding medium and the material conveying capacity of the baffle plate completely depend on the stacking height, the baffle plate close to the inner wall of the ball mill is broken and fails, the ball mill needs to be stopped for replacement of the baffle plate, and the grinding production efficiency of the returned sand, the returned stone and the crushed stone is affected.

[0006] Therefore, it is necessary to improve the baffle plate in the existing technology to solve the above problems. SUMMARY

[0007] The application aims to disclose a baffle plate of a single-layer ball mill for the soda ash industry, so as to solve the above technical problems, provide a baffle plate with low casting difficulty, convenient installation, good anti-blocking performance, self-cleaning function and low incidence of baffle plate breakage and failure.

[0008] To achieve the above object, the application provides a warehouse separating plate of a single-layer ball mill for preventing blockage in soda industry, which comprises:

[0009] The grate plates are arranged in a disc structure in sequence along the circumferential direction and a circular hole is formed in the center of the disc, the grate plate is provided with a fixing hole near the rounded end, and the circular arc end of the fan-shaped plate extends in a direction perpendicular to the grate plate to form an arc-shaped side plate for installation with the barrel of the ball mill.

[0010] The grate plate is provided with a plurality of grate slots arranged in the radial direction from the rounded end to the circular arc end, the depth of the grate slot near the center of the grate plate is greater than that of the grate slot at the rounded end and the circular arc end, the grate slot has a stepped structure, and the feeding end is large and the discharging end is small.

[0011] The outer ring of the fixed plate is provided with a plurality of positioning holes in the circumferential direction, the positioning holes are coaxially arranged with the fixing holes of the grate plate, and the connecting bolts are sequentially penetrated to connect the fixed plate and the grate plate, a plurality of straight groove through holes are formed in the fixed plate to improve the ventilation and material passing capacity of the warehouse separating plate.

[0012] The cleaning sliding block is in the wedge-shaped block structure, is arranged at the discharging end of the grate slot, the wedge-shaped block root is accommodated in the grate slot, an inner cavity is formed in the wedge-shaped block, a balance steel ball is arranged in the inner cavity, the wedge-shaped block head is horizontally slidably connected with the grate plate, the center of gravity of the balance steel ball is offset to drive the cleaning sliding block to slide along the direction of the grate slot to clean the discharging end.

[0013] The inner wall of the grate slot and the position near the outlet end are provided with a sliding groove in the direction parallel to the grate slot to accommodate the wedge-shaped block head, and the opening of the sliding groove is in a contraction structure to limit the wedge-shaped block head.

[0014] As a further improvement of the application, the arc-shaped side plate and the barrel of the ball mill are connected by bolts, and a damping structure is further arranged at the connecting position.

[0015] As a further improvement of the application, the arc-shaped side plate is provided with a mounting hole penetrating along the thickness direction in the center of the arc-shaped side plate, one end of the mounting hole near the inner wall of the arc-shaped side plate is provided with a nut groove, and a Y-shaped hole channel is formed between the mounting hole and the nut groove.

[0016] The arc-shaped side plate and the barrel of the ball mill are connected by bolts penetrating the mounting hole and connected with the nut in the nut groove to fix the arc-shaped side plate, and a Y-shaped sealing ring is arranged in the Y-shaped hole channel.

[0017] As a further improvement of the application, the damping structure comprises:

[0018] A through slot is formed in the outer wall of the arc-shaped side plate in the vertical direction on the left and right sides of the mounting hole, and a filler is arranged in the through slot;

[0019] A rectangular groove is formed in the outer wall of the arc-shaped side plate in the vertical direction on the upper and lower sides of the mounting hole, and a counterbore with a slightly larger inner diameter is formed in the bottom of the rectangular groove;

[0020] A T-shaped rubber column is arranged in the rectangular groove, one end of which is embedded in the counterbore to achieve positioning and assembly of the T-shaped rubber column, and the other end is provided with an internally threaded hole for bolt assembly, and a rubber ring is further sleeved between the T-shaped rubber column and the rectangular groove, the rubber ring is in the form of a corrugated cylinder, and each section is in the form of a V.

[0021] As a further improvement of the application, a wear-resistant metal layer is arranged on one side of the inlet end and close to the circular arc end.

[0022] As a further improvement of the application, the wear-resistant metal layer is a metal plate, and the metal plate and the grate plate are connected by bolts, and the metal plate is provided with a notch with the same size as the inlet end of the grate gap of the grate plate.

[0023] As a further improvement of the application, the bolts are treated by a Dacromet surface treatment process.

[0024] As a further improvement of the application, the filler is a cement mortar with a compressive strength of 40-50 MPa.

[0025] As a further improvement of the application, the fixed plate and the circular corner end of the grate plate are matched by inner and outer arc surfaces to achieve installation and positioning.

[0026] Compared with the prior art, the application has the following advantages:

[0027] (1) A kind of warehouse partition plate of soda industry anti-blocking single-layer ball mill, by the grate gap setting of ladder structure, i.e. the fixed width of the grate gap at the feed end is large, the grate gap rate of the warehouse partition plate of the application is 18%, can effectively reduce the difficulty of the feed end and the discharge end, under the premise of not reducing the effective volume in the cylinder, can effectively improve the production capacity of ball mill, reduce the casting processing difficulty of single warehouse partition plate, and installation is light, save economy;Direct slot through hole is opened at fixed plate, improve the ventilation and material passing capacity at the warehouse partition plate, at the same time, wear-resistant metal layer is additionally arranged at the arc end of grate plate, further reduce the impact of material accumulation on the arc end of grate plate;Grate plate and cylinder are fixedly connected by damping structure, allow reliable movement between warehouse partition plate and ball mill cylinder, grate plate is constantly shaken by the influence of machine rotation and grinding body impact, while grate plate is shaken, material particles accumulated at grate gap are shaken off and scattered by cleaning slider, realize self-cleaning of grate gap, save a lot of time and labor, greatly improve production efficiency, by arranging balance steel ball in wedge-shaped block, the center of gravity change caused by steel ball movement drives wedge-shaped block to slide, while realizing grate gap cleaning, can reduce the stress transmission of warehouse partition plate caused by steel ball impact, prolong its service life. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 For the three-dimensional structure of the warehouse partition plate of the application of soda industry anti-blocking single-layer ball mill

[0029] Intention, and a grate plate is hidden in the figure;

[0030] Figure 2 For the single grate plate in the warehouse partition plate of the application of soda industry anti-blocking single-layer ball mill

[0031] Structure schematic view;

[0032] Figure 3 For the single grate plate in the warehouse partition plate of the application of soda industry anti-blocking single-layer ball mill

[0033] Figure 4 For Figure 3 Local structure schematic view of arc-shaped side plate, which illustrates damping structure;

[0034] Figure 5 For the cleaning slider in the warehouse partition plate of the application of soda industry anti-blocking single-layer ball mill.

[0035] In the figure: 1, grate plate; 2, fixed plate; 3, wear-resistant metal layer; 4, T-shaped rubber column; 5, rubber ring; 6, cleaning sliding block; 10, round hole; 11, grate seam; 12, arc-shaped side plate; 20, straight slot through hole; 60, cavity; 61, wedge-shaped block root; 62, wedge-shaped block head; 63, balance steel ball; 100, fixed hole; 101, round corner end; 102, circular arc end; 111, feeding end; 112, discharging end; 120, through slot; 121, mounting hole; 122, nut groove; 123, Y-shaped hole; 200, positioning hole. DETAILED DESCRIPTION

[0036] The application will be described in detail below with reference to the embodiments shown in the drawings, but it should be noted that these embodiments are not a limitation on the application, and equivalent transformations or substitutions of function, method, or structure made by those of ordinary skill in the art based on these embodiments are within the protection scope of the application.

[0037] Please refer to Figures 1 to 5 A specific embodiment of a warehouse separating plate of a single-layer ball mill for preventing blockage in the soda industry is shown.

[0038] The application discloses a baffle plate of a single-layer ball mill for soda industry, which comprises grate plates 1, fixing plates 2 and cleaning sliding blocks 6, wherein the grate plates 1 are arranged in a disc structure in a circumferential direction and a circular hole 10 is formed in the center of the disc; the grate plate 1 is provided with a fixing hole 100 near a rounded end 101; the rounded end 102 of the fan-shaped arc extends to form an arc-shaped side plate 12 which is perpendicular to the grate plate 1; the grate plate 1 is provided with a plurality of grate seams 11 which are arranged in a radial direction and the depth of the grate seam 11 near the center of the grate plate 1 is greater than that of the grate seam 11 near the rounded end 101 and the arc end 102; the grate seam 11 is in a ladder structure and the feeding end 111 is larger than the discharging end 112; the fixing plate 2 is provided with a plurality of positioning holes 200 which are coaxial with the fixing holes 100 of the grate plate 1; the fixing plate 2 is connected with the grate plate 1 through the positioning holes 200 and the fixing holes 100; the fixing plate 2 is provided with a plurality of straight groove through holes 20 which can improve the ventilation and material passing capacity of the baffle plate; the cleaning sliding block 6 is arranged at the discharging end 112 of the grate seam 11 and the wedge-shaped block root 61 is accommodated in the grate seam 11 and provided with a cavity 60; the wedge-shaped block head 62 is horizontally slidably connected with the grate plate 1 and the center of gravity of the balance steel ball 63 can drive the cleaning sliding block 6 to slide along the grate seam 11 to clean the discharging end 112; the inner wall of the grate seam 11 is provided with a sliding groove which is parallel to the grate seam 11 and accommodates the wedge-shaped block head 62.

[0039] Further, the arc-shaped side plate 12 is connected with the cylinder of the ball mill through bolts and a damping structure is arranged at the connecting position. Specifically, the damping structure comprises a through groove 120 which is arranged on the outer wall of the arc-shaped side plate 12 and vertically arranged on the left and right sides of the mounting hole 121; the through groove 120 is filled with a filler; a rectangular groove is arranged on the outer wall of the arc-shaped side plate 12 and vertically arranged on the upper and lower sides of the mounting hole 121; the bottom of the rectangular groove is provided with a counterbore which has a slightly larger inner diameter; a T-shaped rubber column 4 is arranged in the rectangular groove and one end of the T-shaped rubber column 4 is embedded in the counterbore to realize the positioning assembly of the T-shaped rubber column 4; the other end of the T-shaped rubber column 4 is provided with an inner threaded hole for bolt assembly; a rubber ring 5 is arranged between the T-shaped rubber column 4 and the rectangular groove; the rubber ring 5 is in a corrugated cylindrical shape and each section is in a V shape.

[0040] Specifically, in the embodiment, the arc-shaped side plate 12 is centrally provided with a mounting hole 121 penetrating in the thickness direction, the mounting hole 121 is provided with a nut groove 122 at one end close to the inner wall of the arc-shaped side plate 12, and a Y-shaped channel 123 is formed between the mounting hole 121 and the nut groove 122; the arc-shaped side plate 12 is fixed by penetrating the mounting hole 121 with a bolt and connecting with a nut in the nut groove 122 between the arc-shaped side plate 12 and the barrel of the ball mill, and a Y-shaped sealing ring is arranged in the Y-shaped channel 123.

[0041] The wear-resistant metal layer 3 is arranged on one side of the grate plate 1 at the inlet end and close to the arc end 102, further reducing the impact of material accumulation on the arc end 102 of the grate plate 1. The wear-resistant metal layer 3 is a metal plate, and the metal plate and the grate plate 1 are connected by bolts. The metal plate is provided with a notch with the same size as the inlet end of the grate gap 11 of the grate plate 1. The bolts are treated by a Dacromet surface treatment process. The filler is a cement mortar with a compressive strength of 40-50 MPa. The fixed plate 2 and the round corner end 101 of the grate plate 1 are matched by inner and outer arc surfaces to realize installation and positioning.

[0042] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A warehouse partition plate for a non-clogging single-layer ball mill for soda industry, characterized by, The application relates to a ball mill with a disc structure, which comprises the following parts. A plurality of grate plates are arranged in a disc structure in a circumferential direction and a circular hole is formed in the center of the disc; the grate plate is provided with a fixing hole near a rounded end; and the circular arc end of the fan-shaped plate extends to form an arc-shaped side plate in a direction perpendicular to the grate plate. A plurality of grate slots are arranged in the grate plate in a radial direction from the rounded end to the circular arc end; the depth of the grate slot near the center of the grate plate is greater than that of the grate slot at the rounded end and the circular arc end; and the grate slot has a ladder structure with a large feeding end and a small discharging end. A fixing plate is provided with a plurality of positioning holes in the outer ring in the circumferential direction; the positioning holes are coaxially arranged with the fixing holes of the grate plate; and connecting bolts are sequentially arranged through the fixing plate and the grate plate. A cleaning sliding block is arranged at the discharging end of the grate slot and has a wedge-shaped block structure; the wedge-shaped block is arranged in the grate slot and is internally provided with a cavity; a balance steel ball is arranged in the cavity; the wedge-shaped block head is horizontally slidably connected with the grate plate; the center of gravity of the balance steel ball is offset to drive the cleaning sliding block to slide along the grate slot to clean the discharging end. A sliding groove is arranged on the inner wall of the grate slot near the outlet end in a direction parallel to the grate slot to accommodate the wedge-shaped block head; and the opening of the sliding groove is in a contraction structure to limit the wedge-shaped block head.

2. A baffle plate for a pure soda industry anti-blocking single-layer ball mill according to claim 1, characterized in that, The arc-shaped side plate is connected with the cylinder of the ball mill through bolts and is further provided with a damping structure at the connecting position.

3. A baffle plate for a soda ash industry anti-blocking single-layer ball mill according to claim 2, characterized in that, An installation hole is arranged through the arc-shaped side plate in the thickness direction; a nut groove is arranged at one end of the installation hole near the inner wall of the arc-shaped side plate; and a Y-shaped hole is formed between the installation hole and the nut groove. The arc-shaped side plate is connected with the cylinder of the ball mill through bolts penetrating the installation hole and connected with the nut in the nut groove to fix the arc-shaped side plate; and a Y-shaped sealing ring is arranged in the Y-shaped hole.

4. A baffle plate for a soda ash industry anti-blocking single-layer ball mill according to claim 3, characterized in that, The damping structure comprises the following parts. A through groove is arranged on the outer wall of the arc-shaped side plate in the vertical direction on the left and right sides of the installation hole; and a filler is arranged in the through groove. A rectangular groove is arranged on the outer wall of the arc-shaped side plate in the vertical direction on the upper and lower sides of the installation hole; a counterbore with a slightly larger inner diameter is arranged at the bottom of the rectangular groove. A T-shaped rubber column is arranged in the rectangular groove; one end of the T-shaped rubber column is embedded in the counterbore to realize positioning and assembly of the T-shaped rubber column; an inner threaded hole is arranged at the other end of the T-shaped rubber column for bolt assembly; a rubber ring is further arranged between the T-shaped rubber column and the rectangular groove; the rubber ring is in a corrugated cylindrical shape; and each section is in a V-shaped structure.

5. A clogging prevention type single layer mill separator plate for soda industry as claimed in claim 1 wherein, A wear-resistant metal layer is arranged on one side of the grate plate near the circular arc end.

6. A baffle plate for a soda ash industry anti-blocking single-layer ball mill according to claim 5, characterized in that, The wear-resistant metal layer is a metal plate; the metal plate is connected with the grate plate through bolts; and a notch with the same size as the inlet end of the grate slot is arranged on the metal plate.

7. A baffle plate for a soda ash industry anti-blocking single-layer ball mill according to claim 2, characterized in that, The bolts are treated by a Dacromet surface treatment process.

8. A baffle plate for a soda ash industry anti-blocking single-layer ball mill according to claim 4, characterized in that, The filler is a cement mortar with a compressive strength of 40-50 MPa.

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