Vacuum smelting furnace for copper pipe

Abstract

The utility model discloses a copper pipe vacuum smelting furnace, and relates to the technical field of metal smelting. The ceramic smelting furnace comprises a feeding hopper, a smelting furnace body and a ceramic smelting tank, the feeding hopper is arranged at the top of the smelting furnace body, a smashing assembly is arranged in the feeding hopper, a discharging pipe is welded to the bottom of the feeding hopper in a penetrating mode, the ceramic smelting tank is fixedly clamped in the smelting furnace body, and a ceramic filtering pipe is rotationally clamped to the top of the ceramic smelting tank. A heat-preservation discharging pipe is welded to the bottom of the ceramic smelting tank in a penetrating mode, and a rotary sealing cover is clamped to one side of the bottom of the heat-preservation discharging pipe. Through the arrangement of the feeding hopper, the smelting furnace main body and the ceramic smelting tank, the problems that the heating time is long when a large number of raw materials are put into the smelting furnace, large blocks of raw materials need to be cut for a certain time, waste residues generated by smelting can block a filter screen, and a large number of raw materials after smelting need to be stored through a heat preservation structure are solved.

Description

Technical Field

[0001] This utility model belongs to the field of metal smelting technology, and in particular relates to a copper tube vacuum smelting furnace. Background Technology

[0002] Copper pipe, a type of non-ferrous metal pipe, is a seamless pipe made by pressing or drawing. Copper pipe has excellent electrical and thermal conductivity, corrosion resistance, ease of processing and connection, and is lightweight. It is a primary material for conductive and heat dissipation components in electronic products, and is also the first choice for water supply, heating, and cooling pipe installations in residential buildings. However, the copper pipe production process typically involves smelting the raw materials in a furnace to remove impurities and ensure the quality of the copper pipe. But in practical use, it still has the following drawbacks:

[0003] Utility model CN217844700U discloses a vacuum melting furnace. The furnace body includes a furnace box, a furnace cover, a rotary mechanism, a vacuum pump, and a medium-frequency controller. The furnace box has a first insulation layer inside, and the furnace cover is located on the upper surface of the furnace box. The rotary mechanism includes an insulation box and a driving component. The insulation box is located inside the furnace box, and a second insulation layer and a heat insulation layer are provided inside the insulation box. The driving component is located on the outer wall of the furnace box, the vacuum pump is located on the furnace cover, and the medium-frequency controller is located on the outer wall of the furnace box. When melting raw materials in a melting furnace, the raw materials are usually directly placed into a crucible for melting and processing. Heating low-temperature raw materials requires a long time, and when the raw material volume is large, it is often necessary to cut the raw material before placing it into the crucible. This operation is time-consuming and labor-intensive, and cutting the raw material often consumes a lot of time, affecting the melting and processing efficiency of the raw material.

[0004] When a smelting furnace melts raw materials, it usually produces some residue. To avoid the residue affecting subsequent processing, it needs to be filtered. However, the residue remains in the filter structure after filtration, which is not easy to clean and affects the filtration of subsequent residues. In addition, smelting furnaces often need to be equipped with heat preservation structures to temporarily store large amounts of raw materials after smelting, prevent the raw materials from cooling, and allow the raw materials to be gradually processed into the next processing equipment. As a result, the heat preservation structure is often large in size and requires the use of heating structures for heat preservation, which increases processing costs and reduces space utilization. Utility Model Content

[0005] The purpose of this utility model is to provide a copper tube vacuum melting furnace, which solves the problems of long heating time required when a large amount of low-temperature raw materials are put into the melting furnace, large pieces of raw materials need to be cut for a certain period of time before they can be placed in the melting furnace, waste slag produced by melting will clog the filter screen and make it difficult to filter the waste slag, and a large amount of raw materials after melting need to be stored in an insulated structure.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a copper tube vacuum melting furnace, comprising a feeding hopper, a melting furnace body, and a ceramic melting ladle. A vacuum pump is installed on one side of the melting furnace body, and a collection box is inserted through one end of the melting furnace body. A feeding hopper is installed on the top of the melting furnace body, and two conveying rollers are inserted through one end of the feeding hopper. A crushing component is installed inside the feeding hopper. A discharge pipe is welded through the bottom of the feeding hopper, and a rotating roller is clamped through one end of the discharge pipe. The discharge pipe is inserted through the top of the melting furnace body. A ceramic melting ladle is clamped and fixed inside the melting furnace body. A ceramic filter tube is rotatably clamped to the top of the ceramic melting ladle. A heat-insulating discharge pipe is welded through the bottom of the ceramic melting ladle, and a rotating sealing cover is clamped to one side of the bottom of the heat-insulating discharge pipe.

[0008] A vacuum pump creates a vacuum inside the furnace, preventing oxygen from the air from reacting with the high-temperature raw materials and ensuring smelting efficiency. A collection box collects filtered waste for easy disposal. The rotating feed rollers gradually convey the raw materials into the feed hopper, and the high-speed rotation of the crushing components crushes the materials at the bottom of the rollers, eliminating the need for additional crushing and cutting. The friction and collision during crushing generate heat, initially raising the raw materials and reducing the time required for them to heat up within the furnace, thus improving smelting efficiency. The rotating rollers also convey a portion of the crushed material, gradually adding it into the furnace while preventing outside air from entering through the feed hopper during smelting. This maintains a relative vacuum within the furnace, allowing for the gradual smelting of large quantities of material, avoiding the time-consuming process of directly adding large amounts and impacting subsequent processing. After crushing, when... After the raw materials fall into the ceramic filter tube, the main body of the melting furnace melts the raw materials in the ceramic melting tank and the ceramic filter tube. The raw materials melt and fall into the ceramic melting tank through the ceramic filter screen, while the waste residue in the raw materials is retained in the ceramic filter tube through the ceramic filter screen. By controlling the rotation of the ceramic filter tube at timed intervals, the waste residue can fall into the collection box under gravity. Furthermore, by using a vacuum pump to evacuate air, the ceramic filter screen can be backflushed, causing the particles clogging the ceramic filter screen to be discharged from the pores of the ceramic filter screen with the airflow and fall into the collection box under gravity, further preventing the ceramic filter screen from clogging. A reset component is set at one end of the rotating sealing cover. The reset component can make the rotating sealing cover fit against the bottom of the discharge pipe when not subjected to large external forces, preventing the raw materials in the ceramic melting tank from flowing out directly. By opening the rotating sealing cover at timed intervals to discharge part of the raw materials, the raw materials can be processed with the next processing device. This eliminates the need for the melting furnace to be matched with the insulation structure. Part of the raw materials after a single melting can be directly used for forming processing by the forming device, reducing costs and improving space utilization.

[0009] Furthermore, a first transmission assembly is snapped onto the top of one end of the feeding hopper, a conveying motor is snapped onto one side of the first transmission assembly, one end of the two conveying rollers is snapped onto one side of the first transmission assembly, the conveying motor is connected to the two conveying rollers through the first transmission assembly, a second transmission assembly is snapped onto one end of the feeding hopper, a crushing motor is snapped onto one side of the top of the second transmission assembly, the crushing assembly is snapped onto the top of the second transmission assembly, a screen is snapped and fixed inside the feeding hopper, the screen is located at the bottom of the two conveying rollers, and the crushing assembly is inserted into the bottom of the screen.

[0010] The feeding motor drives the feeding rollers to rotate, gradually conveying the raw material falling between the two feeding rollers to the underside of the feeding rollers. The crushing motor drives the crushing components to rotate, cutting and crushing the raw material without the need for additional crushing and cutting operations. The friction and collision during crushing generate heat, initially raising the temperature of the raw material and reducing the time required for the raw material to heat up in the main body of the melting furnace, thus improving melting efficiency. The screen can screen the raw material, crushing it to a certain size before it falls into the feed pipe, increasing the surface area of ​​the raw material and further increasing the melting speed.

[0011] Furthermore, a first rotating motor is fixedly connected to one end of the feeding pipe. The first rotating motor is connected to the rotating roller through the feeding pipe. Feeding grooves are opened at both ends of the outer circumference of the rotating roller. The feeding pipe is suspended from the top of the main body of the smelting furnace.

[0012] After being sieved, the raw material falls into a conveying trough. The first rotating motor drives the rotating roller to rotate at regular intervals, which can transfer the raw material and connect the raw material with the bottom of the feeding pipe. This allows the raw material to fall into the main body of the smelting furnace under the action of gravity, so that the raw material is gradually poured into the main body of the smelting furnace. This also prevents outside air from entering the main body of the smelting furnace through the feeding hopper during the smelting process, ensuring that the main body of the smelting furnace is in a relative vacuum.

[0013] Furthermore, a partition is welded and fixed to one side of the main body of the smelting furnace. The partition is suspended above the top of the collection box. An exhaust pipe is inserted and snapped through the outer periphery of the vacuum pump. An extraction pipe is inserted and snapped through one end of the vacuum pump. Heat dissipation fins are welded and fixed to the outer periphery of the extraction pipe. The other end of the extraction pipe is inserted and snapped through to one side of the main body of the smelting furnace relative to the vacuum pump. The extraction pipe is located at the bottom of the partition.

[0014] The vacuum pump can evacuate air from the main body of the smelting furnace through the evacuation pipe, creating a relative vacuum inside the furnace to prevent oxygen in the air from reacting with the high-temperature raw materials and ensure smelting efficiency. The heat dissipation fins can cool the gas entering the evacuation pipe, preventing high-temperature air from directly passing through the vacuum pump and avoiding overheating damage. After the ceramic filter tube is flipped, the waste residue inside can fall into the collection box under gravity along the inclined partition, facilitating centralized treatment of the waste residue.

[0015] Furthermore, a ceramic filter screen is inserted and snapped into the bottom of the ceramic filter tube, and a second rotating motor is snapped into one end of the bottom of the ceramic filter tube. The second rotating motor is inserted and snapped into one side of the smelting furnace body.

[0016] The main body of the smelting furnace is equipped with a heating structure. After the raw material falls into the ceramic filter tube, the main body of the smelting furnace heats the ceramic melting tank and the ceramic filter tube, further heating the raw material to melt it. After melting, the raw material falls into the ceramic melting tank through the ceramic filter screen, while the residue in the raw material remains in the ceramic filter tube. The second rotating motor is controlled at regular intervals to drive the ceramic filter tube to rotate, so that the waste residue in the ceramic filter tube falls into the collection box under the action of gravity. The vacuum pump is used to backflush the ceramic filter screen, so that the particles blocking the ceramic filter screen are discharged from the pores of the ceramic filter screen with the airflow, further preventing the ceramic filter screen from clogging. The baffle can slow down the airflow and prevent the waste residue from directly entering the exhaust pipe with the airflow.

[0017] Furthermore, a push cylinder is snapped onto one side of the insulated discharge pipe, and a push plate is slidably snapped onto the bottom of the push cylinder. The push plate is suspended on one side of the top of the rotating sealing cover. The insulated discharge pipe is snapped onto the bottom of the melting furnace body, and the collection box is attached to one side of the ceramic melting pot.

[0018] After the raw materials fall into the ceramic melting pot and the insulated discharge pipe, the pusher plate is driven downward by the controlled cylinder at regular intervals. This pushes the rotating sealing cover downward, allowing part of the raw materials to be discharged. This enables the raw materials to be processed in conjunction with the next processing device, so that the melting furnace does not need to be matched with the insulation structure. Part of the raw materials after a single melting can be directly used for forming processing by the forming device, reducing costs and improving space utilization.

[0019] This utility model has the following beneficial effects:

[0020] This invention solves the problems of traditional smelting furnaces where raw materials are typically placed directly into a crucible, resulting in prolonged heating times for low-temperature materials and the need for cutting large materials before placement. This process is time-consuming and labor-intensive, impacting smelting efficiency. Large pieces of raw material are fed into the hopper and gradually conveyed by rotating conveyor rollers. The high-speed rotation of the crushing component further crushes the material, generating heat through friction and collision, thus preheating the material and reducing the time required for heating within the furnace. The crushed material then falls into the rotating rollers of the discharge pipe, where timed rotation quickly pours it into the furnace for smelting. This allows for the gradual smelting of large quantities of material, avoiding the time-consuming process of directly pouring large amounts into the furnace and affecting subsequent processing.

[0021] This invention solves the problem of residue buildup in smelting furnaces during raw material melting. By incorporating a feeding hopper, a smelting furnace body, and a ceramic melting ladle, it addresses the common issue of residue buildup. After melting, slag is typically generated, requiring filtration to prevent it from affecting subsequent processing. However, the residue remains trapped within the filtration structure, hindering cleaning and impacting subsequent filtration. Furthermore, smelting furnaces often require insulation to temporarily store large quantities of smelted material, preventing cooling and facilitating its gradual transition to the next processing stage. This results in bulky insulation structures that necessitate heating, increasing processing costs and reducing space utilization. The invention addresses this problem by using a smelting furnace body to melt the raw material... The process involves melting the raw materials and allowing them to fall through a ceramic filter into a ceramic melting tank. Waste residue from the raw materials remains inside a ceramic filter tube. The rotation of the filter tube is controlled periodically, causing the waste residue to fall into a collection box under gravity. A vacuum pump then backflushes the ceramic filter, expelling particles that clog it and preventing further blockage. After the raw materials fall into the ceramic melting tank and the insulated discharge pipe, a timed rotating sealing cover rotates downwards, discharging a portion of the material for further processing. This allows for the direct storage of large quantities of raw materials within the ceramic melting tank, eliminating the need for insulation structures, reducing costs, and improving space utilization. Attached Figure Description

[0022] Figure 1 This is a structural rendering of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model;

[0024] Figure 3 This is a structural diagram of the feed hopper of this utility model;

[0025] Figure 4 This is a cross-sectional view of the main body of the smelting furnace of this utility model;

[0026] Figure 5 This is a structural diagram of the ceramic melting tank of this utility model.

[0027] Figure label:

[0028] 1. Feed hopper; 101. Feeding roller; 102. Discharge pipe; 103. First transmission assembly; 104. Feeding motor; 105. Crushing motor; 106. Second transmission assembly; 107. Screen; 108. Crushing assembly; 109. Rotating roller; 110. First rotating motor; 111. Feeding trough; 2. Melting furnace body; 201. Vacuum pump; 202. Collection box; 203. Evacuation pipe; 204. Heat dissipation fins; 205. Baffle plate; 206. Exhaust pipe; 3. Ceramic melting tank; 301. Ceramic filter tube; 302. Second rotating motor; 303. Insulated discharge pipe; 304. Ceramic filter; 305. Rotating sealing cover; 306. Push cylinder; 307. Push plate. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figures 1-5 As shown, this utility model is a copper tube vacuum melting furnace, including a feeding hopper 1, a melting furnace body 2, and a ceramic melting pot 3. A vacuum pump 201 is provided on one side of the melting furnace body 2. A collection box 202 is inserted through one end of the melting furnace body 2. A feeding hopper 1 is provided on the top of the melting furnace body 2. Two conveying rollers 101 are inserted through one end of the feeding hopper 1. A crushing component 108 is provided inside the feeding hopper 1. A feeding pipe 102 is welded through the bottom of the feeding hopper 1. A rotating roller 109 is clamped through one end of the feeding pipe 102. The feeding pipe 102 is inserted through the top of the melting furnace body 2. A ceramic melting pot 3 is clamped and fixed inside the melting furnace body 2. A ceramic filter pipe 301 is rotatably clamped to the top of the ceramic melting pot 3. A heat-insulating discharge pipe 303 is welded through the bottom of the ceramic melting pot 3. A rotating sealing cover 305 is clamped to one side of the bottom of the heat-insulating discharge pipe 303.

[0031] Vacuum pump 201 is controlled to evacuate air from the furnace body 2, creating a relative vacuum inside the furnace body 2. The furnace body 2 is also controlled to heat the ceramic melting pot 3. A large amount of copper tube raw material is poured into the feed hopper 1. The feed motor 104 drives the rotation of two feed rollers 101, conveying the raw material falling to the top of the feed rollers 101. The crushing motor 105 drives the high-speed rotation of the crushing assembly 108 to crush and preheat the raw material. The crushed material falls under gravity into the rotating roller 109 of the discharge pipe 102. The timed rotation of the rotating roller 109 causes some of the material to fall into the ceramic filter tube 301. The material melts in the ceramic filter tube 301 and falls through the ceramic filter screen 304 into the ceramic melting pot 3. Internal storage: Waste residue from the raw materials is retained in the ceramic filter tube 301. When discharge is required, the push cylinder 306 is controlled to move the push plate 307 downward, causing the rotating sealing cover 305 to open at regular intervals, allowing some raw materials to be discharged through the insulated discharge pipe 303 for further processing. When there is no raw material in the ceramic filter tube 301, the ceramic filter tube 301 is flipped, allowing the waste residue to fall into the collection box 202 under gravity. When there is no raw material in both the ceramic melting tank 3 and the ceramic filter tube 301, the ceramic filter tube 301 is flipped, and the rotating sealing cover 305 is opened. The vacuum pump 201 draws air to backflush the ceramic filter screen 304, causing the particles blocked in the ceramic filter screen 304 to be discharged with the airflow.

[0032] Among them, such as Figures 1-3 As shown, a first transmission assembly 103 is snapped onto the top of one end of the feeding hopper 1. A conveying motor 104 is snapped onto one side of the first transmission assembly 103. Two conveying rollers 101 are snapped onto one side of the first transmission assembly 103. The conveying motor 104 is connected to the first transmission assembly 103 and the two conveying rollers 101 through the transmission. A second transmission assembly 106 is snapped onto one end of the feeding hopper 1. A crushing motor 105 is snapped onto one side of the top of the second transmission assembly 106. A crushing assembly 108 is inserted through... A screen 107 is fixedly attached to the top of the second transmission component 106 and the feed hopper 1 is fixedly attached to the bottom of the two conveying rollers 101. The crushing component 108 is inserted through the bottom of the screen 107. A first rotating motor 110 is fixedly attached to one end of the feeding pipe 102. The first rotating motor 110 is connected to the rotating roller 109 through the feeding pipe 102. The rotating roller 109 has conveying grooves 111 at both ends of its outer circumference. The feeding pipe 102 is suspended from the top of the smelting furnace body 2.

[0033] When a large amount of raw material is poured into the feeding hopper 1, the conveying motor 104 drives the conveying roller 101 to rotate through the first transmission component 103, so that the raw material falling between the two conveying rollers 101 is gradually conveyed to the lower side of the conveying roller 101. The crushing motor 105 drives the crushing component 108 to rotate through the second transmission component 106, so as to cut, crush and preheat the raw material. After the raw material is crushed to a certain size, it falls through the screen 107 to the bottom of the feeding hopper 1. Some of the raw material falls into the conveying trough 111. The first rotating motor 110 drives the rotating roller 109 to rotate at regular intervals, so that some of the raw material falls into the melting furnace body 2 under the action of gravity.

[0034] Among them, such as Figure 1 , 2 As shown in Figure 4, a partition 205 is welded and fixed to one side of the main body 2 of the smelting furnace. The partition 205 is suspended above the top of the collection box 202. An exhaust pipe 206 is inserted and snapped through the outer circumference of the vacuum pump 201. An extraction pipe 203 is inserted and snapped through one end of the vacuum pump 201. A heat dissipation fin 204 is welded and fixed to the outer circumference of the extraction pipe 203. The other end of the extraction pipe 203 is inserted and snapped through to one side of the main body 2 of the smelting furnace, and the extraction pipe 203 is located at the bottom of the partition 205.

[0035] Vacuum pump 201 draws air from the furnace body 2 through suction pipe 203 and discharges the gas through exhaust pipe 206, so that the furnace body 2 is in a relative vacuum. After the ceramic filter tube 301 is flipped, the waste residue in the ceramic filter tube 301 falls into the collection box 202 under the action of gravity along the inclined partition 205. After the smelting process, the collection box 202 is removed and the waste residue is centrally processed.

[0036] Among them, such as Figure 1 , 2 As shown in Figure 5, a ceramic filter screen 304 is inserted and snapped into the bottom of the ceramic filter tube 301. A second rotating motor 302 is snapped into one end of the bottom of the ceramic filter tube 301. The second rotating motor 302 is inserted and snapped into one side of the main body 2 of the smelting furnace. A pushing cylinder 306 is snapped into one side of the heat-insulating discharge pipe 303. A push plate 307 is slidably snapped into the bottom of the pushing cylinder 306. The push plate 307 is suspended on one side of the top of the rotating sealing cover 305. The heat-insulating discharge pipe 303 is inserted and snapped into the bottom of the main body 2 of the smelting furnace. The collection box 202 is attached to one side of the ceramic smelting tank 3.

[0037] After the raw material falls into the ceramic filter tube 301, it is heated by the main body of the melting furnace 2, which heats the ceramic melting tank 3 and the ceramic filter tube 301 to further melt the raw material. After melting, the raw material falls into the ceramic melting tank 3 through the ceramic filter screen 304, while the residue in the raw material remains in the ceramic filter tube 301. When there is no raw material in the ceramic filter tube 301, the second rotating motor 302 is controlled to rotate the ceramic filter tube 301, causing the waste in the ceramic filter tube 301 to fall into the collection box 202 under the action of gravity. After the material enters the insulated discharge pipe 303, the pusher 307 is moved downward by the pusher cylinder 306 at regular intervals, pushing the rotating sealing cover 305 downward, so that part of the raw material is discharged through the insulated discharge pipe 303 and processed in the next step. When there is no raw material in the ceramic melting tank 3 and the ceramic filter tube 301, the ceramic filter tube 301 is flipped, and the rotating sealing cover 305 is opened at the same time. The vacuum pump 201 draws air and drives the airflow to backflush the ceramic filter screen 304, so that the particles blocked in the ceramic filter screen 304 are discharged with the airflow.

[0038] The specific working principle of this utility model is as follows: Vacuum pump 201 evacuates air from the furnace body 2 through suction pipe 203, creating a relative vacuum inside the furnace body 2, and controls the furnace body 2 to heat the ceramic melting pot 3. A large amount of copper tube raw material is poured into the feed hopper 1. The conveying motor 104 drives two conveying rollers 101 to rotate through the first transmission component 103, conveying the raw material falling to the top of the conveying rollers 101. The crushing motor 105 drives the crushing component 108 to rotate at high speed through the second transmission component 106, crushing and preheating the raw material. The crushed raw material falls through the screen 107 into the discharge pipe 102, and some of the raw material falls into the conveying trough 111. The first rotating motor 110 is controlled to drive the rotating roller 109 to rotate at a time, so that some of the raw material falls into the ceramic filter tube 301. The material melts inside the ceramic filter tube 301 and falls through the ceramic filter screen 304 into the ceramic melting tank 3 for storage. The waste residue in the raw material is retained inside the ceramic filter tube 301. When it is necessary to discharge the material, the push cylinder 306 is controlled to drive the push plate 307 to move down, so that the rotating sealing cover 305 opens at regular intervals, allowing some raw material to be discharged through the heat-insulated discharge pipe 303 for further processing. When there is no raw material in the ceramic filter tube 301, the ceramic filter tube 301 is controlled to flip, so that the waste residue falls into the collection box 202 for collection under gravity. When there is no raw material in both the ceramic melting tank 3 and the ceramic filter tube 301, the ceramic filter tube 301 is controlled to flip, and at the same time, the rotating sealing cover 305 is controlled to open. The vacuum pump 201 draws air to backflushing the ceramic filter screen 304, so that the particles blocked in the ceramic filter screen 304 are discharged with the airflow.

[0039] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A copper tube vacuum melting furnace, comprising a feeding hopper (1), a melting furnace body (2), and a ceramic melting ladle (3), characterized in that: A vacuum pump (201) is provided on one side of the main body (2) of the smelting furnace. A collection box (202) is inserted through one end of the main body (2). A feeding hopper (1) is provided on the top of the main body (2). Two conveying rollers (101) are inserted through one end of the feeding hopper (1). A crushing component (108) is provided inside the feeding hopper (1). A discharge pipe (102) is welded through the bottom of the feeding hopper (1). 02) A rotating roller (109) is inserted through one end, and the feeding pipe (102) is inserted through the top of the smelting furnace body (2). A ceramic smelting tank (3) is fixed inside the smelting furnace body (2). A ceramic filter pipe (301) is rotatably inserted at the top of the ceramic smelting tank (3). A heat-insulating discharge pipe (303) is welded through the bottom of the ceramic smelting tank (3). A rotating sealing cover (305) is inserted on one side of the bottom of the heat-insulating discharge pipe (303).

2. The copper tube vacuum melting furnace according to claim 1, characterized in that: The top of one end of the feeding hopper (1) is clamped with a first transmission assembly (103), and a conveying motor (104) is clamped through one side of the first transmission assembly (103). One end of the two conveying rollers (101) is clamped to one side of the first transmission assembly (103). The conveying motor (104) is connected to the two conveying rollers (101) through the first transmission assembly (103). One end of the feeding hopper (1) is clamped through a second transmission assembly (106), and a crushing motor (105) is clamped through one side of the top of the second transmission assembly (106). The crushing assembly (108) is clamped through the top of the second transmission assembly (106). A screen (107) is clamped and fixed inside the feeding hopper (1). The screen (107) is located at the bottom of the two conveying rollers (101). The crushing assembly (108) is inserted through the bottom of the screen (107).

3. The copper tube vacuum melting furnace according to claim 1, characterized in that: The first rotating motor (110) is fixedly connected to one end of the feeding pipe (102). The first rotating motor (110) is connected to the rotating roller (109) through the feeding pipe (102). The rotating roller (109) has feeding grooves (111) at both ends of its outer circumference. The feeding pipe (102) is suspended above the top of the smelting furnace body (2).

4. A copper tube vacuum melting furnace according to claim 1, characterized in that: A partition (205) is welded and fixed on one side of the main body (2) of the smelting furnace. The partition (205) hangs over the top of the collection box (202). An exhaust pipe (206) is inserted and clipped through the outer circumference of the vacuum pump (201). An exhaust pipe (203) is inserted and clipped through one end of the vacuum pump (201). A heat dissipation fin (204) is welded and fixed to the outer circumference of the exhaust pipe (203). The other end of the exhaust pipe (203) is inserted and clipped through the other side of the main body (2) of the smelting furnace. The exhaust pipe (203) is located at the bottom of the partition (205).

5. A copper tube vacuum melting furnace according to claim 1, characterized in that: A ceramic filter screen (304) is inserted through the bottom of the ceramic filter tube (301), and a second rotating motor (302) is inserted through one end of the bottom of the ceramic filter tube (301). The second rotating motor (302) is inserted through and inserted on one side of the smelting furnace body (2).

6. A copper tube vacuum melting furnace according to claim 1, characterized in that: A push cylinder (306) is attached to one side of the insulated discharge pipe (303), and a push plate (307) is slidably attached to the bottom of the push cylinder (306). The push plate (307) hangs on one side of the top of the rotating sealing cover (305). The insulated discharge pipe (303) is attached to the bottom of the smelting furnace body (2). The collection box (202) is attached to one side of the ceramic smelting tank (3).

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