Water spray cooling device of ball mill

Abstract

The utility model discloses a water spray cooling device of a ball mill, which relates to the technical field of water spray cooling of ball mills and comprises a ball-milling barrel, water cooling components are distributed on the outer side, the upper end and the lower end of the ball-milling barrel, and the water cooling components are used for realizing water spray cooling of the ball-milling barrel; the water cooling assembly comprises a water circulation unit, a waterwheel unit and a flow dividing unit. The water circulation unit is used for realizing water spraying and water flow circulation on the ball-milling barrel; the waterwheel unit rotates along with the ball milling barrel to drive the cooling water in the water circulation unit, so that the surface of the ball milling barrel is always provided with the cooling water; and the flow dividing unit is used for enabling the cooling water driven by the waterwheel unit to flow in a flow dividing manner, so that the surface heat exchange efficiency of the cooling water and the ball-milling barrel is further improved. According to the utility model, the water cooling component is arranged, so that the surface of the ball-milling barrel can be in all-dimensional contact with cooling water in the rotating process of the ball-milling barrel, the full-range cooling of the ball-milling barrel is realized, and the cooling efficiency of the ball-milling barrel is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water spray cooling of ball mills, in particular to a water spray cooling device for ball mills. Background Art

[0002] The ball mill is composed of a horizontal cylinder, a hollow shaft for feeding and discharging materials, and a grinding head. The cylinder is a long cylinder with grinding bodies inside. The cylinder is made of steel plates and is fixed to the cylinder by steel linings. The grinding bodies are generally steel balls and are loaded into the cylinder according to different diameters and a certain proportion. The grinding bodies can also be made of steel segments, which can be selected according to the particle size of the grinding material.

[0003] During operation, the material is loaded into the cylinder through the hollow shaft at the feed end of the ball mill. When the cylinder of the ball mill rotates, the grinding body is attached to the cylinder lining due to inertia, centrifugal force and friction, and is carried away by the cylinder. When it is brought to a certain height, it is thrown down due to its own gravity. The falling grinding body crushes the material in the cylinder like a projectile, thereby realizing the material crushing operation.

[0004] During the operation of the ball mill, a large amount of heat will be generated due to friction when the grinding body collides with the material. If the heat is not dissipated in time, the overall temperature of the ball mill equipment will increase, which will affect the normal operation and grinding effect of the ball mill. Based on this, a water spray cooling device for a ball mill is provided. Utility Model Content

[0005] The purpose of the utility model is to provide a water spray cooling device for a ball mill in order to solve the above-mentioned problems.

[0006] To achieve the above object, the utility model provides the following technical solutions: a water spray cooling device for a ball mill, comprising a ball mill cylinder, the outer side and upper and lower ends of the ball mill cylinder are provided with water cooling components, and the water cooling components are used to realize water spray cooling of the ball mill cylinder;

[0007] The water cooling assembly includes a water circulation unit, a water wheel unit, and a diversion unit;

[0008] The water circulation unit is used to realize water spraying and water flow circulation on the ball mill cylinder;

[0009] The waterwheel unit rotates with the ball mill cylinder to drive the cooling water in the water circulation unit, so that the surface of the ball mill cylinder is always supplied with cooling water;

[0010] The diversion unit is used to divert the cooling water driven by the waterwheel unit, thereby further improving the surface heat exchange efficiency between the cooling water and the ball mill cylinder.

[0011] As a further solution of the utility model: the water circulation unit includes a water collecting tank, an inverted L-shaped bracket, a spray pipe, and a spray head;

[0012] The water collecting box is located directly below the ball mill cylinder, and the inverted L-shaped bracket is fixed to one side of the outer wall of the water collecting box and extends to directly above the ball mill cylinder;

[0013] The spray pipe is fixed between two inverted L-shaped brackets, and a plurality of spray heads are provided, and the plurality of spray heads are evenly distributed and fixed at the bottom of the spray pipe;

[0014] The water collecting tank and the spray pipe are connected to the external cooling water circulation system through the connecting pipe and the water pump;

[0015] The cooling water is sprayed onto the upper surface of the ball mill cylinder through the spray pipe and the spray head to cool the ball mill cylinder, and the water collecting tank is used to collect the cooling water.

[0016] As a further solution of the utility model: the waterwheel unit includes a fixed side plate, an arc-shaped baffle plate, and an annular blocking plate;

[0017] There are multiple fixed side plates, which are evenly distributed around the circumference and fixed to the outside of the ball mill cylinder. The arc baffle is fixed to the side of the fixed side plate away from the ball mill cylinder. There are two annular sealing plates, which are symmetrically fixed to the outside of the ball mill cylinder and welded to the fixed side plate and the arc baffle.

[0018] The fixed side plate, the arc-shaped baffle plate and the annular sealing plate are combined to form a box structure. When the box structure rotates to the inside of the water collecting tank, the cooling water in the water collecting tank is contained and driven to rotate together with the ball mill cylinder.

[0019] As a further solution of the utility model: the end cross-section of the arc baffle and the fixed side plate is a "T"-shaped structure, which is used to enable the arc baffle to intercept and block the cooling water between the ball mill cylinder and the fixed side plate when the fixed side plate rotates upward or downward.

[0020] As a further solution of the utility model: the diversion unit includes a water permeable hole;

[0021] The water permeable hole is opened at the bottom of one side of the fixed side plate and penetrates to the other side of the fixed side plate. The cooling water distributed on the upper surface of the upper fixed side plate can flow to the upper surface of the lower fixed side plate through the water permeable hole, so as to realize the flow of cooling water on the surface of the ball mill cylinder.

[0022] As a further solution of the utility model: a plurality of water permeable holes are evenly arranged on a single fixed side plate along the long side direction, and the water permeable holes on two adjacent fixed side plates are staggered in the horizontal direction.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] By setting up a water cooling assembly, the surface of the ball mill cylinder can be in full contact with cooling water during its rotation, so that the full range cooling of the ball mill cylinder is achieved, and the cooling efficiency of the ball mill cylinder is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0027] Figure 3 It is a structural sectional view of the utility model.

[0028] In the figure: 1. ball mill cylinder; 2. water cooling assembly; 201. water collecting tank; 202. inverted L-shaped bracket; 203. spray pipe; 204. spray head; 205. fixed side plate; 206. arc baffle; 207. annular sealing plate; 208. water permeable hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 3 In the embodiment of the utility model, a water spray cooling device for a ball mill includes a ball mill cylinder 1, and water cooling components 2 are distributed on the outer side and the upper and lower ends of the ball mill cylinder 1, and the water cooling components 2 are used to realize water spray cooling of the ball mill cylinder 1;

[0031] The water cooling assembly 2 includes a water circulation unit, a waterwheel unit, and a diversion unit. The water circulation unit is used to realize water spraying and water circulation on the ball mill cylinder 1. The waterwheel unit drives the cooling water in the water circulation unit as the ball mill cylinder 1 rotates, so that the surface of the ball mill cylinder 1 is always supplied with cooling water. The diversion unit is used to divert the cooling water driven by the waterwheel unit to further improve the surface heat exchange efficiency between the cooling water and the ball mill cylinder 1.

[0032] The water circulation unit includes a water collecting box 201, an inverted L-shaped bracket 202, a spray pipe 203, and a spray head 204. The water collecting box 201 is distributed directly below the ball mill cylinder 1, and the inverted L-shaped bracket 202 is fixed to one side of the outer wall of the water collecting box 201 and extends to directly above the ball mill cylinder 1.

[0033] The spray pipe 203 is fixed between the two inverted L-shaped brackets 202, and a plurality of spray heads 204 are provided, and the plurality of spray heads 204 are evenly distributed and fixed at the bottom of the spray pipe 203;

[0034] The water collecting tank 201 and the spray pipe 203 are connected to the external cooling water circulation system through the connecting pipe and the water pump. The cooling water is sprayed to the upper surface of the ball mill cylinder 1 through the spray pipe 203 and the spray head 204 to cool the ball mill cylinder 1. The water collecting tank 201 is used to collect the cooling water.

[0035] The waterwheel unit includes a fixed side plate 205, an arc-shaped baffle plate 206, and an annular plugging plate 207. A plurality of fixed side plates 205 are provided, and the plurality of fixed side plates 205 are evenly distributed in a circle and fixed to the outside of the ball mill cylinder 1. The arc-shaped baffle plate 206 is fixed to the side of the fixed side plate 205 away from the ball mill cylinder 1. Two annular plugging plates 207 are provided, and the two annular plugging plates 207 are symmetrically fixed to the outside of the ball mill cylinder 1 and are welded and fixed to the fixed side plate 205 and the arc-shaped baffle plate 206.

[0036] The fixed side plate 205, the arc-shaped baffle plate 206, and the annular sealing plate 207 are combined to form a box structure. When the box structure rotates to the inside of the water collecting box 201, the cooling water in the water collecting box 201 is contained and driven to rotate together with the ball mill cylinder 1.

[0037] The diversion unit includes a water hole 208, which is opened at the bottom of one side of the fixed side plate 205 and penetrates to the other side of the fixed side plate 205. The cooling water distributed on the upper surface of the upper fixed side plate 205 can flow to the upper surface of the lower fixed side plate 205 through the water hole 208, so as to realize the flow of cooling water on the surface of the ball mill cylinder 1.

[0038] In this embodiment: when the ball mill cylinder 1 rotates and needs to be cooled, the external water pump can be started to transport cooling water to the inside of the spray pipe 203, and the cooling water is sprayed to the surface of the ball mill cylinder 1 through the spray head 204 to cool the ball mill cylinder 1;

[0039] During this process, the cooling water sprayed by the spray head 204 will be collected in the two fixed side plates 205, which will rotate synchronously with the rotation of the ball mill cylinder 1. In the process of the two fixed side plates 205 rotating downward with the rotation of the ball mill cylinder 1, the cooling water located between the two fixed side plates 205 can flow downward along the surface of the ball mill cylinder 1 through the water permeable holes 208. When the two fixed side plates 205 rotate to the inside of the water collecting tank 201, the remaining cooling water between the two fixed side plates 205 is mixed with the cooling water inside the water collecting tank 201.

[0040] When the two fixed side plates 205 rotate upward with the ball mill body 1, some cooling water can be contained in the box structure composed of the fixed side plates 205 and the arc baffle plate 206, so that the cooling water can rotate with the ball mill body 1, and in this process, the cooling water can flow downward through the water permeable holes 208. When the two fixed side plates 205 rotate to the bottom of the spray head 204 again, the cooling water is received again, and this reciprocating process can make the surface of the ball mill body 1 contact with the cooling water in all directions during the rotation process, so that the full range cooling of the ball mill body 1 is achieved, and the cooling efficiency of the ball mill body 1 is effectively improved.

[0041] Please refer to Figures 1 to 3 The end cross-section of the arc baffle 206 and the fixed side plate 205 is a "T"-shaped structure, which is used to enable the arc baffle 206 to intercept and block the cooling water between the ball mill cylinder 1 and the fixed side plate 205 when the fixed side plate 205 rotates upward or downward.

[0042] In this embodiment: through this structure, when the fixed side plate 205 rotates upward or downward, there is always a portion of cooling water in the middle of the box body composed of the fixed side plate 205, the ball mill cylinder 1, the arc baffle 206 and the annular sealing plate 207, so that the ball mill cylinder 1 is always in a cooling and heat exchange environment during the rotation process, so that the ball mill cylinder 1 maintains a good low-temperature operating state.

[0043] Please refer to Figures 1 to 3 A plurality of water-permeable holes 208 are evenly arranged along the long side direction on a single fixed side plate 205, and the water-permeable holes 208 on two adjacent fixed side plates 205 are staggered in the horizontal direction.

[0044] In this embodiment: this structure blocks the flow trajectory of the cooling water when it passes through the two fixed side plates 205, which is used to slow down the flow rate of the cooling water, so that the heat exchange between the cooling water and the ball mill cylinder 1 is more sufficient.

[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water shower cooling device for a ball mill, comprising a ball mill cylinder (1), characterized in that: Water cooling components (2) are distributed on the outer side and upper and lower ends of the ball mill cylinder (1), and the water cooling components (2) are used to achieve water cooling of the ball mill cylinder (1); The water cooling component (2) comprises a water circulation unit, a water wheel unit and a flow diversion unit; The water circulation unit is used to realize water spraying and water flow circulation on the ball mill cylinder (1); The water wheel unit rotates with the ball mill cylinder (1) to drive the cooling water in the water circulation unit, so that the surface of the ball mill cylinder (1) is always provided with cooling water; The diversion unit is used to divert the cooling water driven by the waterwheel unit, thereby further improving the surface heat exchange efficiency between the cooling water and the ball mill cylinder (1).

2. A ball mill water shower cooling device according to claim 1, characterized in that: The water circulation unit comprises a water collecting tank (201), an inverted L-shaped bracket (202), a spray pipe (203), and a spray head (204); The water collecting box (201) is located directly below the ball mill cylinder (1), and the inverted L-shaped bracket (202) is fixed to one side of the outer wall of the water collecting box (201) and extends to directly above the ball mill cylinder (1); The spray pipe (203) is fixed between the two inverted L-shaped brackets (202); a plurality of spray heads (204) are provided, and the plurality of spray heads (204) are evenly distributed and fixed at the bottom of the spray pipe (203); The water collecting tank (201) and the spray pipe (203) are connected to an external cooling water circulation system via a connecting pipe and a water pump; The cooling water is sprayed onto the upper surface of the ball mill cylinder (1) through the spray pipe (203) and the spray head (204) to cool the ball mill cylinder (1), and the water collecting tank (201) is used to collect the cooling water.

3. A ball mill water shower cooling device according to claim 2, characterized in that: The waterwheel unit comprises a fixed side plate (205), an arc-shaped baffle plate (206), and an annular sealing plate (207); A plurality of the fixed side plates (205) are provided, and the plurality of the fixed side plates (205) are evenly distributed around the circumference and fixed to the outside of the ball mill cylinder (1); the arc-shaped baffle plate (206) is fixed to a side of the fixed side plate (205) away from the ball mill cylinder (1); and two annular sealing plates (207) are provided, and the two annular sealing plates (207) are symmetrically fixed to the outside of the ball mill cylinder (1) and are welded and fixed to the fixed side plate (205) and the arc-shaped baffle plate (206); The fixed side plate (205), the arc-shaped baffle plate (206), and the annular sealing plate (207) are combined to form a box structure. When the box structure rotates into the water collecting box (201), the cooling water in the water collecting box (201) is contained and driven to rotate together with the ball mill cylinder (1).

4. A ball mill water shower cooling device according to claim 3, characterized in that: The end cross-sections of the arc-shaped baffle plate (206) and the fixed side plate (205) are in a "T"-shaped structure, so that when the fixed side plate (205) rotates upward or downward, the arc-shaped baffle plate (206) can intercept and block the cooling water between the ball mill cylinder (1) and the fixed side plate (205).

5. The water shower cooling device for a ball mill according to claim 3, characterized in that: The diversion unit comprises a water permeable hole (208); The water permeable hole (208) is opened at the bottom of one side of the fixed side plate (205) and penetrates to the other side of the fixed side plate (205). The cooling water distributed on the upper surface of the upper fixed side plate (205) can flow to the upper surface of the lower fixed side plate (205) through the water permeable hole (208), so as to realize the flow of cooling water on the surface of the ball mill cylinder (1).

6. A ball mill water shower cooling device according to claim 5, characterized in that: A plurality of water-permeable holes (208) are evenly arranged on a single fixed side plate (205) along the long side direction, and the water-permeable holes (208) on two adjacent fixed side plates (205) are staggered in the horizontal direction.

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