Receiving tank of vacuum rapid hardening furnace

Abstract

A vacuum rapid hardening furnace material receiving tank relates to the field of neodymium iron boron production, and comprises a material receiving tank body, the material receiving tank body comprises an outer tank and an inner tank which are integrally arranged, a cooling water channel A is arranged between the outer tank and the inner tank, a conical barrel is arranged in the inner tank, and the conical barrel comprises a conical cavity and a cylindrical cavity which are communicated up and down; the bottom of the cylindrical cavity is communicated with a through hole in the bottom of the inner tank, an inner barrel is arranged in the conical barrel, a water inlet pipe is introduced into the inner barrel, the outer end of the water inlet pipe is connected with an outlet of an external cooling circulating water pump, the inner end of the water inlet pipe penetrates through an upper port of the inner barrel to be arranged in the conical cavity, and a cooling water channel B is arranged between the conical barrel and the inner barrel; the cooling water channel B is communicated with the cooling water channel A. A water return pipe is fixed in the middle of the outer tank, an inner port of the water return pipe is arranged on the upper portion in the cooling water channel A, and an outer port of the water return pipe is connected with a water supply port of external cooling circulating water. The device is reasonable in structure and compact in layout, operation of workers is greatly simplified, and machining difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of NdFeB production, in particular to a material collecting tank of a vacuum quick-setting furnace for producing NdFeB. Background Art

[0002] It is well known that the vacuum rapid solidification furnace is a key equipment for producing NdFeB strips. In order to improve production efficiency, the cooling method of the strips thrown out by the water-cooled roller is changed from cooling with the water-cooled plate inside the furnace to cooling in the receiving tank outside the furnace. When the casting is completed, the high-temperature strips enter the receiving tank at the same time. The receiving tank can be transferred to other cooling stations for cooling without breaking the vacuum. At this time, the equipment can enter the next process flow, thereby greatly improving production efficiency.

[0003] The existing material receiving tank structure is an inner and outer double-layer split type. The outer tank of the material receiving tank is fixed on the lifting mechanism of the mobile trolley and cannot be moved. When working, the inner tank and the outer tank are connected as a whole by fasteners. The cavity between the inner tank and the outer tank is a cooling water channel, which can be used to water-cool the belt-swinging pieces in the inner tank. When the material receiving tank is full of belt-swinging pieces, the inner tank needs to move from the working position to the cooling position with the belt-swinging pieces. Therefore, the inner and outer tanks need to be separated. When separating, the workers loosen the fasteners and move the inner tank out and put it into another specific water tank for continued water cooling, which invisibly increases the labor intensity of the workers. In addition, this type of material receiving tank requires the interchangeability of multiple inner and outer tanks, so the processing accuracy requirements are very high. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses a vacuum quick-setting furnace material collecting tank, which solves the problem of reducing the processing difficulty and reducing the labor intensity of workers.

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

[0006] A vacuum quick-setting furnace receiving tank comprises a receiving tank body and a vacuum pressure gauge installed on the receiving tank body, the receiving tank body comprises an outer tank and an inner tank which are integrally arranged, a cooling water channel A is arranged between the outer tank and the inner tank, a conical cylinder is arranged inside the inner tank, the conical cylinder comprises a conical cavity and a cylindrical cavity which are connected up and down, the bottom of the cylindrical cavity is connected to the bottom through hole of the inner tank, an inner cylinder is arranged inside the conical cylinder, a water inlet pipe is passed through the inner cylinder, the outer end of the water inlet pipe is connected to the outlet of an external cooling circulating water pump, the inner end of the water inlet pipe passes through the upper port of the inner cylinder and is arranged in the conical cavity, a cooling water channel B is arranged between the conical cylinder and the inner cylinder; the cooling water channel B is connected to the cooling water channel A, a return water pipe is fixed in the middle of the outer tank, the inner port of the return water pipe is arranged in the upper inner part of the cooling water channel A, and the outer port is connected to the water supply port of the external cooling circulating water.

[0007] The vacuum quick-setting furnace receiving tank has the upper ends of the outer tank and the inner tank fixedly connected to the bottom of the flange at the upper mouth of the outer tank, a cover plate is provided on the flange, a fixing ring is provided between the lower parts of the outer tank and the inner tank, and a plurality of water holes are evenly spaced on the fixing ring.

[0008] The vacuum quick-setting furnace material collecting tank has an inner tube with a closed upper end and an open lower end, and the lower end is connected to the bottom of the outer tank.

[0009] The vacuum quick-setting furnace material collecting tank is provided with heat sinks on the inner wall of the inner tank and the outer wall of the conical cylindrical cavity.

[0010] The vacuum quick-setting furnace material collecting tank has a tank body guide ring fixed around the bottom of the outer tank.

[0011] The vacuum quick-setting furnace receiving tank is provided with a safety valve and a ball valve on the return pipe, and the outer port of the return pipe is connected to the return port of the external cooling circulating water through a self-closing quick-plug connector.

[0012] The vacuum quick-setting furnace receiving tank is provided with a vacuum pipe leading to the interior of the outer tank on the flange, and a vacuum pressure gauge and a manual baffle valve are respectively fixed on the vacuum pipe.

[0013] The vacuum quick-setting furnace material collecting tank is provided with a plurality of lifting blocks evenly spaced and fixed along the circumferential direction of the flange.

[0014] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0015] The vacuum quick-setting furnace collecting tank described in the utility model has an outer tank and an inner tank which are integrally arranged. During use, there is no need to frequently disassemble and assemble fasteners to separate the inner and outer tanks, which effectively avoids cooling water dripping during the transfer of the collecting tank. Connected cooling water channels A and cooling water channels B are arranged in the outer tank and the inner tank to fully cool the internal belt-swinging pieces of the collecting tank. A cone is arranged to guide and divert the belt-swinging pieces when they enter the collecting tank, so that the belt-swinging pieces can be evenly distributed inside the collecting tank. The utility model has a reasonable structure and a compact layout, which greatly simplifies the operation of workers and reduces the difficulty of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0018] In the figure: 1. Tank body of the receiving tank; 2. Vacuum pressure gauge; 3. Manual baffle valve; 4. Cover plate; 5. Tank body guide ring; 6. Outer tank; 7. Inner tank; 8. Conical cylinder; 9. Heat sink; 10. Water inlet pipe; 11. Water return pipe; 12. Safety valve; 13. Ball valve; 14. Self-closing quick connector; 15. Cooling water channel A; 16. Cooling water channel B; 17. Inner cylinder; 18. Flange; 19. Fixing ring. DETAILED DESCRIPTION

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0020] Combined with Figure 1-2 The vacuum quick-setting furnace receiving tank comprises a receiving tank body 1 and a vacuum pressure gauge 2 installed on the receiving tank body 1. The receiving tank body 1 comprises an outer tank 6 and an inner tank 7 which are integrally arranged. A cooling water channel A15 is arranged between the outer tank 6 and the inner tank 7. A cone 8 is arranged inside the inner tank 7. The cone 8 comprises a conical cavity and a cylindrical cavity which are connected to each other from top to bottom. The bottom of the cylindrical cavity is connected to the bottom through hole of the inner tank 7. Heat sinks 9 are arranged on the inner wall of the inner tank 7 and on the outer wall of the cylindrical cavity of the cone 8. An inner cylinder 17 is arranged inside the cone 8. The upper end of the inner cylinder 17 is a closed end, and the lower end is arranged to be open, and the lower end is connected to the bottom of the outer tank 6. Connecting arrangement; an inlet pipe 10 is passed through the inner cylinder 17, the outer end of the inlet pipe 10 is connected to the water supply port of the external cooling circulating water, the inner end of the inlet pipe 10 passes through the upper port of the inner cylinder 17 and is arranged in the conical cavity, and a cooling water channel B16 is provided between the conical cylinder 8 and the inner cylinder 17; the cooling water channel B16 is connected with the cooling water channel A15, a return water pipe 11 is fixed in the middle of the outer tank 6, the inner port of the return water pipe is arranged in the upper inner part of the cooling water channel A15, and the outer port is connected to the return water port of the external cooling circulating water; a tank body guide ring 5 is fixed around the outer bottom of the outer tank 6, which is used for positioning the receiving tank body 1 when it is placed on the external trolley.

[0021] Furthermore, the upper ends of the outer tank 6 and the inner tank 7 are fixedly connected to the bottom of the flange 18 at the upper end of the outer tank 6, a cover plate 4 is provided on the flange 18, a fixing ring 19 is provided between the lower parts of the outer tank 6 and the inner tank 7, and a plurality of water holes are evenly spaced on the fixing ring 19; cooling water enters the cooling water channel B16 from the water inlet pipe 10, and flows into the cooling water channel A15 through the plurality of water holes on the lower fixing ring 19, thereby cooling the belt-swinging plates in the inner tank.

[0022] Furthermore, a safety valve 12 and a ball valve 13 are installed on the return pipe 11, and the outer port of the return pipe 11 is connected to the return port of the external cooling circulating water through a self-closing quick-plug connector 14; a vacuum pipe leading to the interior of the outer tank 6 is inserted on the flange 18, and a vacuum pressure gauge 2 and a manual baffle valve 3 are fixed on the vacuum pipe respectively; a plurality of lifting blocks are fixed at even intervals along the circumferential direction of the flange 18 for lifting with external lifting equipment.

[0023] When the vacuum quick-setting furnace collecting tank described in the present invention is used, the external lifting equipment is connected with a plurality of lifting blocks in the circumferential direction of the flange 18 to lift the collecting tank body 1 to the collecting tank trolley. The collecting tank trolley is provided with a guide device that cooperates with the guide ring 5 of the lower tank body of the outer tank 6, so that the collecting tank body 1 can be easily placed on the collecting tank trolley. After the collecting tank trolley is driven to the predetermined position, the lifting mechanism of the lifting equipment lifts the collecting tank body 1 to a certain height, so that the flange 18 on the upper part of the collecting tank body 1 is fixedly connected to the opening box on the lower side of the vacuum quick-setting furnace box body, and the flange 18 is fixed to the opening box through the step surface on the upper outer circle; the cover plate 4 is opened by an external manipulator, at this time, the collecting tank body 1 is connected to the vacuum quick-setting furnace box body as a whole, and vacuum is evacuated; when casting starts, the stripping piece enters the inner tank 7 after passing through the crushing mechanism, and passes through the conical section on the upper part of the inner cone 8 of the inner tank 7 It plays a guiding role on the belt-swinging pieces, so that they are evenly distributed in the inner tank 7. The heat sinks 9 on the inner wall of the inner tank 7 and the outer wall of the cylindrical cavity of the cone 8 play a role in quickly cooling the belt-swinging pieces. After the inner tank 7 is full, the external manipulator closes the cover plate 4, and the vacuum degree in the tank body 1 of the receiving tank is detected by the vacuum pressure gauge 2 and the manual baffle valve 3. If it is qualified, the lifting equipment will lower the tank body 1 of the receiving tank from the lower part of the vacuum quick-setting furnace box body, and hoist it to other areas for cooling. The vacuum quick-setting furnace can enter the next smelting process. At this time, the external cooling circulating water pump is turned on, and cooling water is introduced into the water inlet pipe 10. The cooling water is introduced into the inner end from the outer end of the return pipe 10 and enters the cooling water channel B16. The cooling water in the cooling water channel B16 enters the cooling water channel A15 through the water hole on the fixed ring 19, and the return water is sent to the return water end of the external cooling circulating water through the return water pipe 11 connected to the cooling water channel A15, and the circulating water is used to cool the belt-swinging pieces.

[0024] The parts not described in detail in this utility model are prior art.

[0025] The embodiments selected in this article for the purpose of disclosing the invention of the utility model are currently considered to be suitable, but it should be understood that the utility model is intended to include all changes and improvements of the embodiments that belong to the scope of the present concept and utility model.

Claims

1. A vacuum quick-setting furnace receiving tank, comprising a receiving tank body and a vacuum pressure gauge installed on the receiving tank body, characterized in that: The receiving tank body includes an outer tank and an inner tank which are integrally arranged, a cooling water channel A is arranged between the outer tank and the inner tank, a conical cylinder is arranged inside the inner tank, the conical cylinder includes a conical cavity and a cylindrical cavity which are connected up and down, the bottom of the cylindrical cavity is connected with the bottom through hole of the inner tank, an inner cylinder is arranged inside the conical cylinder, a water inlet pipe is passed through the inner cylinder, the outer end of the water inlet pipe is connected with the outlet of an external cooling circulating water pump, the inner end of the water inlet pipe passes through the upper port of the inner cylinder and is arranged in the conical cavity, a cooling water channel B is arranged between the conical cylinder and the inner cylinder; the cooling water channel B is connected with the cooling water channel A, a return water pipe is fixed in the middle of the outer tank, the inner port of the return water pipe is arranged in the upper inner part of the cooling water channel A, and the outer port is connected with the water supply port of the external cooling circulating water.

2. The vacuum quick-setting furnace receiving tank according to claim 1 is characterized in that: The upper ends of the outer tank and the inner tank are fixedly connected to the bottom of the flange of the outer tank, a cover plate is arranged on the flange, a fixing ring is arranged between the lower parts of the outer tank and the inner tank, and a plurality of water holes are evenly spaced on the fixing ring.

3. The vacuum quick-setting furnace receiving tank according to claim 1 is characterized in that: The upper end of the inner tube is a closed end, the lower end is arranged to be open, and the lower end is connected with the bottom of the outer tank.

4. The vacuum quick-setting furnace receiving tank according to claim 1 is characterized in that: Heat sinks are arranged on the inner wall of the inner tank and the outer wall of the conical cylindrical cavity.

5. The vacuum quick-setting furnace receiving tank according to claim 1 is characterized in that: A tank body guide ring is fixed around the outer bottom of the outer tank.

6. The vacuum quick-setting furnace receiving tank according to claim 1 is characterized in that: A safety valve and a ball valve are installed on the return pipe, and the outer port of the return pipe is connected to the return port of the external cooling circulating water through a self-closing quick-plug connector.

7. The vacuum quick-setting furnace receiving tank according to claim 2 is characterized in that: A vacuum pipe leading into the interior of the outer tank is inserted on the flange, and a vacuum pressure gauge and a manual baffle valve are respectively fixed on the vacuum pipe.

8. The vacuum quick-setting furnace material receiving tank according to claim 2 is characterized in that: A plurality of lifting blocks are evenly fixed along the circumferential direction of the flange.

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