Rock wool centrifugal machine and cooling system thereof

Abstract

The cooling system of the rock wool centrifugal machine comprises a main shaft and a roller head, the interior of the main shaft is hollow, the roller head is arranged at one end of the main shaft and driven by the main shaft to rotate, a cooling pipe is arranged in the main shaft, and a water return cavity is formed between the inner side wall of the main shaft and the outer side wall of the cooling pipe; one end of the cooling pipe is connected with an external cooling water source, and the other end of the cooling pipe is communicated with the inner cavity of the roller head; at least one drainage hole is formed in the end, away from the roller head, of the spindle, and when the spindle rotates, cooling water enters the inner cavity of the roller head from the cooling pipe and then flows out of the drainage hole after passing through the water return cavity. When the main shaft rotates, cooling water in the water return cavity is discharged from the water drainage holes through centrifugal force, so that negative pressure is formed in the water return cavity, water in the cooling pipe can continuously enter the roller head and then enter the water return cavity, and the roller head can be fully cooled under the condition that a water supply pump is not needed; and finally, the fiber forming rate is increased, and the performance of the rock wool board / strip is improved.

Description

Technical Field

[0001] The invention relates to a rock wool centrifuge and a cooling system thereof. Background Art

[0002] Rock wool is a commonly used thermal insulation material, widely used in construction, industrial insulation, sound insulation and other fields. It is made by converting molten rock (such as basalt, diabase, etc.) or other mineral materials (such as slag) into slender fibers and adding a small amount of organic binder and waterproofing agent. Rock wool has many excellent properties, making it an ideal thermal insulation material.

[0003] Rock wool centrifuge is one of the key equipment used in the rock wool production process. Rock wool is a common thermal insulation material, widely used in construction, industrial insulation and other fields. In the production process of rock wool, centrifuge is used to convert molten rock or other raw materials into long and thin fibers.

[0004] The traditional cooling method is: a cooling water pipe is set inside the main shaft to connect with the roller head, a cooling cavity is set inside the roller head, and an exhaust hole is opened on the roller head. The water in the roller head is heated to form water vapor, which is discharged from the exhaust hole. However, this cooling method has low cooling efficiency, low fiber formation rate, large demand for cooling water, and high cost. Summary of the invention

[0005] The purpose of the present invention is to provide a rock wool centrifuge and a cooling system thereof to solve the technical problems mentioned in the above background technology.

[0006] The technical solution for achieving the purpose of the present invention is: a cooling system for a rock wool centrifuge, comprising a main shaft and a roller head, the main shaft is hollow inside, the roller head is arranged at one end of the main shaft and is driven to rotate by the main shaft, a cooling pipe is arranged inside the main shaft, and a return water chamber is formed between the inner wall of the main shaft and the outer wall of the cooling pipe; one end of the cooling pipe is connected to an external cooling water source, and the other end is connected to the inner cavity of the roller head, and one end of the return water chamber is connected to the inner cavity of the roller head; at least one drainage hole is arranged at one end of the main shaft away from the roller head, and when the main shaft rotates, cooling water enters the inner cavity of the roller head from the cooling pipe, and then flows out from the drainage hole after passing through the return water chamber.

[0007] Furthermore, ribs are arranged on the outside of the cooling pipe, and the ribs connect the main shaft and the cooling pipe.

[0008] Furthermore, the drainage holes are arranged radially along the main axis.

[0009] Furthermore, a water collecting tank is arranged at the periphery of one end of the main shaft having the drainage hole.

[0010] Furthermore, the roller head includes a roller head seat and a roller head body, the roller head seat and the roller head body form a cooling cavity, the roller head seat is sleeved on one end of the main shaft, the cooling pipe extends into the cooling cavity, and the return water cavity is connected to the cooling cavity.

[0011] Furthermore, there is a gap between the roller head seat and the outer side wall of the main shaft, and a tightening device is arranged in the gap.

[0012] Furthermore, an end cover is provided at the end of the main shaft extending into the roller head, and the end cover is sleeved on the cooling pipe and fixedly connected to the main shaft, and the end cover seals the gap between the roller head seat and the outer wall of the main shaft; a return water channel is provided on the end cover, and the return water cavity is connected with the cooling cavity through the return water channel.

[0013] Furthermore, a sealing device is provided at one end of the water return chamber away from the roller head, and the sealing device comprises a sealing sleeve and a sealing seat. The sealing sleeve is sleeved on the outside of the sealing seat, and a plurality of sealing rings are provided between the sealing sleeve and the sealing seat.

[0014] Furthermore, both ends of the outer side wall of the sealing seat are provided with inclined surfaces.

[0015] A rock wool centrifuge comprises four centrifugal rollers, at least one of which adopts the cooling system.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects: (1) When the main shaft of the cooling system of the present invention rotates, the cooling water in the return water chamber is discharged from the drain hole by centrifugal force, thereby forming a negative pressure in the return water chamber. The water in the cooling pipe will continuously enter the roller head and then the return water chamber. The roller head can be fully cooled without the need for a water supply pump, thereby reducing the cooling time of the fiber. The fiber can be pulled longer, ultimately improving the fiber formation rate and increasing the tensile and compressive properties of the rock wool board / strip. At the same time, the furnace temperature can be reduced by 75°-150°. Since the furnace temperature is reduced, the energy consumption required for production can be reduced, and the production is safer and more controllable.

[0017] (2) The present invention is provided with ribs connecting the main shaft and the cooling pipe to prevent the cooling pipe from being squeezed, deformed or even broken during high-speed rotation.

[0018] (3) In the present invention, a water collecting tank is arranged at the periphery of one end of the main shaft where the drainage channel is arranged, so as to collect cooling water for recycling and reduce production costs.

[0019] (4) There is a gap between the roller head seat of the present invention and the outer wall of the main shaft, and the roller head and the main shaft are connected by the expansion device to achieve torque transmission.

[0020] (5) The present invention provides an end cover at the end of the main shaft extending into the roller head to prevent water in the cooling cavity from entering the gap between the main shaft and the roller head seat, thereby preventing the expansion device from being soaked in water and rusting and corroding.

[0021] (6) The present invention provides a sealing device at one end of the water return chamber away from the roller head. The end of the water return chamber is sealed by the cooperation between the sealing sleeve, the sealing seat and the sealing ring to prevent the cooling water in the water return chamber from flowing out from the other end. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 For the present invention Figure 1 A partial enlarged view of middle A.

[0024] Figure 3 For the present invention Figure 1 A partial enlarged view of B.

[0025] Figure 4 It is a schematic diagram of the internal structure of the main shaft of the present invention.

[0026] The numbers in the accompanying drawings are: main shaft 1, drainage hole 1-1, roller head 2, roller head seat 2-1, roller head body 2-2, cooling cavity 2-3, cooling pipe 3, return water cavity 4, rib 4-1, water collecting tank 5, expansion device 6, end cover 7, return water channel 7-1, main shaft frame 8, bearing 9, sealing device 10, sealing sleeve 10-1, sealing seat 10-2, sealing ring 10-3. DETAILED DESCRIPTION

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The present invention is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the scope of protection of the present invention.

[0033] Example 1: See Figure 1-3 The cooling system of the rock wool centrifuge of this embodiment includes a main shaft 1 and a roller head 2. The main shaft 1 is hollow inside, and the roller head 2 is arranged at one end of the main shaft 1 and driven to rotate by the main shaft 1. A cooling pipe 3 is arranged inside the main shaft 1, and a return water chamber 4 is formed between the inner wall of the main shaft 3 and the outer wall of the cooling pipe; one end of the cooling pipe 3 is connected to an external cooling water source, and the other end is connected to the inner cavity of the roller head 2, and one end of the return water chamber 4 is connected to the inner cavity of the roller head 2; at least one drainage hole 1-1 is arranged at one end of the main shaft 1 away from the roller head 2. When the main shaft 1 rotates, cooling water enters the inner cavity of the roller head 2 from the cooling pipe 3, and then flows out from the drainage hole 1-1 after passing through the return water chamber 4.

[0034] Specifically, a spindle frame 8 is provided outside the spindle 1, and both ends of the spindle 1 are rotatably provided on the spindle frame 8 through two bearings 9. A spacer is provided between the two bearings 9, and the bearings 9 are limited by the combined action of the spindle frame 8 and the spacer.

[0035] See Figure 4 The cooling tube 3 is located at the center of the main shaft 1. A rib 4-1 is arranged on the outside of the cooling tube 3. The two sides of the rib 4-1 are respectively connected to the cooling tube 3 and the main shaft 1. The cooling tube 3 is supported by the rib 4-1 to prevent the cooling tube 3 from being squeezed, deformed or even broken during high-speed rotation.

[0036] The outer wall of the cooling pipe 3 is the inner wall of the water return chamber 4, the inner wall of the main shaft 1 is the outer wall of the water return chamber 4, the drainage hole 1-1 is provided on the main shaft 1, and the drainage hole 1-1 is connected with the water return chamber 4. In this embodiment, a plurality of drainage holes 1-1 are provided, all of which are arranged along the radial direction of the main shaft 1. When the main shaft 1 rotates at a high speed, the cooling water in the water return chamber 4 will be discharged from the drainage channel 1-1 by centrifugal force.

[0037] The main shaft 1 is provided with a water collecting tank 5 at one end of the drainage channel 1-1. The water collecting tank 5 surrounds one end of the main shaft 1, and the cooling water discharged from the drainage channel 1-1 will be collected by the water collecting tank 5, which is conducive to the recycling of cooling water and reduces production costs.

[0038] See Figure 2 The roller head 2 includes a roller head seat 2-1 and a roller head body 2-2. The roller head seat 2-1 and the roller head body 2-2 form a cooling cavity 2-3. The roller head seat 2-1 is sleeved on one end of the main shaft 1. The cooling pipe 3 extends out of the end of the main shaft 1 and communicates with the cooling cavity 2-3. The return water cavity 4 is communicated with the cooling cavity 2-3. There is a gap between the roller head seat 2-1 and the outer wall of the main shaft 1, and a tightening device 6 is arranged in the gap. The connection between the roller head 2 and the main shaft 1 is realized by the tightening device 6 to realize torque transmission. In this embodiment, the tightening device 6 can be an expansion sleeve.

[0039] The end of the spindle 1 extending into the roller head 2 is provided with an end cover 7, which is sleeved on the cooling pipe 3 and fixedly connected to the spindle 1. The end cover 7 can prevent the water flow in the cooling cavity 2-3 from entering the gap between the spindle 1 and the roller head seat 2-1, and prevent the expansion device 6 from being soaked in water and rusting and corroding. The end cover 7 is provided with a return water channel 7-1, and the return water cavity 4 is connected to the cooling cavity 2-3 through the return water channel 7-1.

[0040] See Figure 3The end of the water return chamber 4 away from the roller head 2 is provided with a sealing device 10, which includes a sealing sleeve 10-1 and a sealing seat 10-2. The sealing sleeve 10-1 is sleeved on the outside of the sealing seat 10-2, and a plurality of sealing rings 10-3 are provided between the sealing sleeve 10-1 and the sealing seat 10-2 to prevent the cooling water in the water return chamber 4 from flowing out from the other end. The outer wall of the sealing seat 10-2 is provided with inclined surfaces at both ends to facilitate the insertion of the sealing seat 10-2 into the sealing sleeve 10-1.

[0041] The working mode of the present invention is as follows: cooling water enters from one end of the cooling pipe 3 and flows into the cooling cavity 2-3 of the roller head 2 from the other end to cool the roller head 2. The cooling water in the roller head 2 enters the return water cavity 4 through the return water channel 7-1 on the end cover 7, and the cooling water cools the main shaft 1. When the main shaft 1 rotates at high speed, the cooling water in the return water cavity 4 is discharged from the drain hole 1-1 by centrifugal force, thereby forming a negative pressure in the return water cavity 4, and the water in the cooling pipe 3 will continuously enter the roller head 2 and then enter the return water cavity 4. The cooling water thrown out by centrifugal force is collected by the water collecting tank 5 and recycled.

[0042] The present invention can fully cool the roller head 2 without the need for a water supply pump, thereby reducing the cooling time of the fiber. The fiber can be pulled longer, ultimately improving the fiberization rate and increasing the tensile and compressive properties of the rock wool board / strip. At the same time, the furnace temperature can be reduced by 75°-150°. Since the furnace temperature is reduced, the energy consumption required for production can be reduced, and the production is safer and more controllable.

[0043] Embodiment 2: A rock wool centrifuge comprises four centrifugal rollers, at least one of which adopts the cooling system in Embodiment 1. If all four centrifugal rollers adopt the aforementioned cooling system, the fiber can be drawn the longest, have the best mechanical properties, and have the highest fiberization rate.

[0044] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling system for a rock wool centrifuge, characterized in that: The invention comprises a main shaft (1) and a roller head (2), wherein the main shaft (1) is hollow inside, the roller head (2) is arranged at one end of the main shaft (1) and is driven to rotate by the main shaft (1), a cooling pipe (3) is arranged inside the main shaft (1), and a water return chamber (4) is formed between the inner wall of the main shaft (3) and the outer wall of the cooling pipe; one end of the cooling pipe (3) is connected to an external cooling water source, and the other end is communicated with the inner chamber of the roller head (2); one end of the water return chamber (4) is communicated with the inner chamber of the roller head (2); at least one drainage hole (1-1) is arranged at one end of the main shaft (1) away from the roller head (2); when the main shaft (1) rotates, cooling water enters the inner chamber of the roller head (2) from the cooling pipe (3), and then flows out from the drainage hole (1-1) after passing through the water return chamber (4).

2. A cooling system for a rock wool centrifuge according to claim 1, characterized in that: A rib (4-1) is provided on the outside of the cooling tube (3), and the rib (4-1) connects the main shaft (1) and the cooling tube (3).

3. The cooling system of a rock wool centrifuge according to claim 1, characterized in that: The drainage holes (1-1) are arranged radially along the main axis (1).

4. A cooling system for a rock wool centrifuge according to claim 3, characterized in that: A water collecting tank (5) is disposed on the periphery of one end of the main shaft (1) provided with a drainage hole (1-1).

5. The cooling system of a rock wool centrifuge according to claim 1, characterized in that: The roller head (2) comprises a roller head seat (2-1) and a roller head body (2-2); the roller head seat (2-1) and the roller head body (2-2) form a cooling cavity (2-3); the roller head seat (2-1) is sleeved on one end of the main shaft (1); the cooling pipe (3) extends into the cooling cavity (2-3); and the water return cavity (4) is connected to the cooling cavity (2-3).

6. A cooling system for a rock wool centrifuge according to claim 5, characterized in that: There is a gap between the roller head seat (2-1) and the outer side wall of the main shaft (1), and a tightening device (6) is arranged in the gap.

7. A cooling system for a rock wool centrifuge according to claim 5, characterized in that: An end cover (7) is provided at the end of the main shaft (1) extending into the roller head (2); the end cover (7) is sleeved on the cooling pipe (3) and fixedly connected to the main shaft (1); the end cover (7) seals the gap between the roller head seat (2-1) and the outer wall of the main shaft (1); a water return channel (7-1) is provided on the end cover (7); the water return chamber (4) is connected to the cooling chamber (2-3) through the water return channel (7-1).

8. The cooling system of a rock wool centrifuge according to claim 1, characterized in that: A sealing device (10) is provided at one end of the water return chamber (4) away from the roller head (2), the sealing device (10) comprising a sealing sleeve (10-1) and a sealing seat (10-2), the sealing sleeve (10-1) being sleeved on the outside of the sealing seat (10-2), and a plurality of sealing rings (10-3) being provided between the sealing sleeve (10-1) and the sealing seat (10-2).

9. A cooling system for a rock wool centrifuge according to claim 8, characterized in that: Both ends of the outer side wall of the sealing seat (10-2) are provided with inclined surfaces.

10. A rock wool centrifuge, characterized in that: The invention comprises four centrifugal rollers, wherein at least one of the centrifugal rollers adopts the cooling system as claimed in any one of claims 1 to 9.

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