Automatic sealing and blanking device for vertical externally heated sintering furnace

Abstract

The utility model relates to the technical field of roasting furnace, concretely is a vertical additional temperature roasting furnace automatic sealing material dropping device, including the material dropping box, the material dropping box top is provided with the material dropping pipe connected with the roasting furnace discharge gate, the material dropping box inside is installed with the conveyer belt, the conveyer belt is driven through drive motor, the conveyer belt is opened with the air hole, and is located conveyer belt bottom and is provided with cooling fan, the cooling fan is used for the material cooling on conveyer belt through air hole, be provided with gravity filling machine on the material dropping box, the feed inlet of gravity filling machine is located the discharge end of conveyer belt, the gravity filling machine bottom is provided with sealing machine. The utility model has the advantage that the processed material is directly packed, solves the existing roasting furnace discharge and the transportation process, the material is easy to be damp and contact with external material, leads to the metamorphic problem of problem.

Description

Technical Field

[0001] This utility model relates to the field of roasting furnace technology, specifically to an automatic sealing and unloading device for a vertical externally heated roasting furnace. Background Technology

[0002] A vertical externally heated roasting furnace is a device used for high-temperature roasting of materials. It is widely used in industries such as chemical, metallurgical, building materials, and environmental protection, for example, in the roasting of ores, the preparation of catalysts, the firing of ceramic materials, and the pyrolysis treatment of waste. In the production of vanadium pentoxide, it can be used to roast vanadium-containing materials at high temperatures, converting vanadium into an easily extractable form.

[0003] Vanadium pentoxide requires packaging after production. This is because vanadium pentoxide has a certain degree of toxicity and readily reacts with moisture and other substances in the air, and also for ease of storage, transportation, and sales. Plastic bags or films are typically used for inner packaging to prevent the product from getting damp and coming into contact with external substances. The plastic bags or films should have good sealing properties and corrosion resistance. Currently, vanadium pentoxide processed in vertical externally heated calcining furnaces requires discharge, transportation, and then packaging. During discharge and transportation, it is susceptible to moisture absorption and contact with external substances, leading to deterioration. Therefore, we propose an automatic sealing and unloading device for vertical externally heated calcining furnaces. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic sealing and unloading device for a vertical externally heated roasting furnace, which has the advantage of directly packaging the processed materials and solves the problem that the materials are prone to moisture and contact with external substances during the discharge and transportation of materials from existing roasting furnaces, leading to deterioration.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic sealing and unloading device for a vertical externally heated roasting furnace, comprising a unloading box, a unloading pipe connected to the furnace outlet at the top of the unloading box, a conveyor belt installed inside the unloading box, the conveyor belt being driven by a drive motor, ventilation holes on the conveyor belt, and a cooling fan at the bottom of the conveyor belt, the cooling fan being used to cool the material on the conveyor belt through the ventilation holes; the conveyor belt with ventilation holes is made of aramid fiber, glass fiber, or silicone, possessing high temperature resistance and certain air permeability, preventing material leakage while allowing air to pass through. The conveyor belt is fitted onto a drive roller and a redirecting roller, and the rotation of the drive roller drives the conveyor belt to move. The drive roller is driven by a drive motor through a reducer or other transmission device, providing power to make the conveyor belt circulate.

[0006] A gravity filling machine is installed on the feeding hopper. The inlet of the gravity filling machine is located at the outlet end of the conveyor belt, and a sealing machine is installed at the bottom of the gravity filling machine. The gravity filling machine utilizes the material's own gravity to allow the material to flow naturally from the storage tank through the discharge pipe and into the packaging container via the filling head. The filling volume of each packaging container is precisely controlled by adjusting the material flow rate and filling time, or by directly controlling the opening size and duration of the filling head valve. Depending on the inner packaging material, a suitable sealing device, such as a heat sealer or an ultrasonic sealer, is selected.

[0007] Preferably, the system also includes a refrigeration chamber filled with a water-based coolant, specifically an aqueous solution of deionized water, ethylene glycol, or propylene glycol. The refrigeration chamber is connected to one end of a cooling pipe (first type) via a pump, with the other end of the cooling pipe returning to the refrigeration chamber. The cooling pipe (first type) is located at the bottom of a cooling fan, which draws the cool air from the cooling pipe (first type) into the material on the conveyor belt to achieve cooling. The coolant in the cooling pipe (first type) has a high specific heat capacity and good thermal conductivity, enabling it to quickly absorb and transfer heat, thus achieving a highly efficient cooling effect and rapidly reducing the temperature of vanadium pentoxide on the conveyor belt.

[0008] Preferably, a second cooling pipe is connected between the first cooling pipe and the pump body. The second cooling pipe is wound around the outside of the gravity filling machine and is used to cool the gravity filling machine and the material inside. The coolant in the second cooling pipe has a high specific heat capacity and good thermal conductivity, which can quickly absorb and transfer heat, thus achieving a highly efficient cooling effect and rapidly reducing the temperature of vanadium pentoxide in the gravity filling machine.

[0009] Preferably, a temperature detection device is installed inside the material feeding box to monitor the temperature changes of the material in real time. The temperature sensor is connected to the control system of the cooling fan. When the temperature exceeds the set value, the cooling fan is automatically started or the fan speed is increased; when the temperature drops below the set value, the fan speed is automatically reduced or the fan stops running, thereby realizing automated control of the cooling process.

[0010] Preferably, the discharge pipe of the gravity filling machine is equipped with a solenoid valve, and the solenoid valve is fitted with a gravity sensor for monitoring the weight of the material in the gravity filling machine. Specifically, the gravity sensor is a high-precision weighing sensor and a metering controller forming a weighing and metering system, which accurately measures vanadium pentoxide according to packaging specifications. When the material enters the metering hopper of the gravity filling machine, the weighing sensor monitors the material weight in real time. Once the set value is reached, the control system sends a signal, and the drive motor of the conveyor belt stops feeding. The control system uses a programmable logic controller or an industrial computer as the core controller to centrally control and coordinate the entire automatic sealing and discharging device, achieving automated operation and linkage of various mechanisms.

[0011] Preferably, the discharge pipe of the gravity filling machine is fitted with a packaging bag. The inner packaging bag uses a plastic bag or plastic film for inner packaging to prevent the product from getting damp and coming into contact with external substances. The plastic bag or film should have good sealing and corrosion resistance. After inner packaging, outer packaging is performed, typically using iron drums, cardboard drums, or plastic drums as outer packaging containers. Manual or other equipment packaging of the outer packaging is not within the scope of this solution. The sealing machine is used to heat-seal the filled packaging bags. When the packaging bag containing vanadium pentoxide reaches the sealing station, the sealing equipment automatically seals the bag opening. The heat sealer melts and adheres the plastic film by heating, while the ultrasonic sealing machine uses the heat generated by ultrasonic vibration to achieve sealing.

[0012] Preferably, the refrigeration chamber is equipped with several evenly distributed heat dissipation plates, one end of which extends to the outside of the refrigeration chamber and connects to a radiator. Both the heat dissipation plates and the radiator are heat-conducting components. The heat-conducting components are any one or more combinations of metal matrix composites, carbon fiber composites, copper, aluminum, or aluminum alloys. This effectively reduces the temperature of the refrigerant in the refrigeration chamber, allowing the refrigerant to be recycled and continuously cooling cooling pipes one and two.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes a feeding box with a vented conveyor belt and cooling fan. Vanadium pentoxide is toxic and readily reacts with moisture in the air. The feeding box allows for sealed transport of the material and cools the vanadium pentoxide as it exits the furnace, bringing it to room temperature or near room temperature before packaging, ensuring packaging effectiveness and product quality. This avoids the problem of directly packaging the hot vanadium pentoxide from the furnace with plastic film, which could damage the film and lead to clumping and deterioration, affecting product quality. It also solves the problem of material deterioration due to moisture absorption and contact with external substances during the discharge and transport of materials from existing furnaces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the arrangement of the cooling pipes of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the refrigeration box of this utility model.

[0018] In the diagram: 1. Feeding box; 2. Feeding pipe; 3. Conveyor belt; 4. Drive motor; 5. Cooling fan; 6. Refrigeration box; 61. Heat sink; 62. Radiator; 7. Pump body; 8. Cooling pipe one; 9. Gravity filling machine; 91. Discharge pipe; 92. Solenoid valve; 93. Gravity sensor; 10. Cooling pipe two; 11. Temperature detection device; 12. Sealing machine; 13. Packaging bag. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 As shown, an automatic sealing and unloading device for a vertical externally heated roasting furnace includes a unloading box 1. A unloading pipe 2, connected to the furnace outlet, is located at the top of the unloading box 1. A conveyor belt 3 is installed inside the unloading box 1 and is driven by a drive motor 4. The conveyor belt 3 has ventilation holes, and a cooling fan 5 is located at its bottom. The cooling fan 5 is used to cool the material on the conveyor belt 3 through the ventilation holes. The conveyor belt 3 with ventilation holes is made of aramid fiber, glass fiber, or silicone, possessing high temperature resistance and certain air permeability to prevent material leakage and allow air to pass through. The conveyor belt 3 is fitted onto a drive roller and a redirecting roller, and the rotation of the drive roller drives the conveyor belt 3. The drive roller is driven by the drive motor 4 through a reducer and other transmission devices, providing power to make the conveyor belt 3 circulate.

[0021] A gravity filling machine 9 is installed on the feeding hopper 1. The inlet of the gravity filling machine 9 is located at the outlet end of the conveyor belt 3, and a sealing machine 12 is installed at the bottom of the gravity filling machine 9. The gravity filling machine 9 utilizes the gravity of the material itself to allow the material to flow naturally from the storage tank through the discharge pipe and be filled into the packaging container through the filling head. The filling volume of each packaging container is precisely controlled by controlling the material flow rate and filling time, or by directly controlling the opening size and time of the valve of the filling head. Depending on the inner packaging material, the sealing machine 12 selects appropriate sealing equipment, such as a heat sealer or an ultrasonic sealer.

[0022] It also includes a refrigeration chamber 6, which is filled with coolant. The coolant is a water-based coolant, specifically an aqueous solution of deionized water, ethylene glycol, or propylene glycol. The refrigeration chamber 6 is connected to one end of a cooling pipe 8 via a pump body 7, and the other end of the cooling pipe 8 returns to the refrigeration chamber 6. Figure 2As shown, cooling pipe 8 is located at the bottom of cooling fan 5. Cooling fan 5 is used to draw the cool air from cooling pipe 8 into the material on conveyor belt 3 to achieve cooling. The coolant in cooling pipe 8 has a high specific heat capacity and good thermal conductivity, which can quickly absorb and transfer heat, thus achieving a highly efficient cooling effect and rapidly reducing the temperature of vanadium pentoxide on conveyor belt 3.

[0023] A second cooling pipe 10 connects the first cooling pipe 8 to the pump body 7. The second cooling pipe 10 is wrapped around the outside of the gravity filling machine 9 and is used to cool the gravity filling machine 9 and the materials inside it. The coolant in the second cooling pipe 10 has a high specific heat capacity and good thermal conductivity, which can quickly absorb and transfer heat, thus achieving a highly efficient cooling effect and rapidly reducing the temperature of vanadium pentoxide in the gravity filling machine 9.

[0024] A temperature detection device 11 is installed inside the material feeding box 1. The temperature detection device 11 is used to monitor the temperature change of the material in real time. The temperature sensor is connected to the control system of the cooling fan 5. When the temperature exceeds the set value, the cooling fan 5 is automatically started or the fan speed is increased; when the temperature drops below the set value, the fan speed is automatically reduced or the fan stops running, so as to realize the automated control of the cooling process.

[0025] A solenoid valve 92 is installed on the discharge pipe 91 of the gravity filling machine 9. A gravity sensor 93 is installed on the solenoid valve 92 to monitor the weight of the material in the gravity filling machine 9. Specifically, the gravity sensor 93 uses a weighing and metering system composed of a high-precision load cell and a metering controller to accurately measure vanadium pentoxide according to packaging specifications. When the material enters the metering hopper of the gravity filling machine 9, the load cell monitors the material weight in real time. Once the set value is reached, the control system sends a signal, and the drive motor 4 of the conveyor belt 3 stops feeding. The control system uses a programmable logic controller or an industrial computer as the core controller to centrally control and coordinate the entire automatic sealing and unloading device, achieving automated operation and linkage of various mechanisms.

[0026] A packaging bag 13 is fitted onto the discharge pipe 91 of the gravity filling machine 9. The inner packaging bag 13 uses a plastic bag or plastic film for inner packaging to prevent the product from getting damp and coming into contact with external substances. The plastic bag or film should have good sealing and corrosion resistance. After the inner packaging is completed, outer packaging is also carried out. The outer packaging generally uses iron drums, cardboard drums, or plastic drums as outer packaging containers. The outer packaging is done manually or by other equipment and is not within the scope of this solution. The sealing machine 12 is used to heat-seal the packaged bag 13 after it has been filled. When the packaged bag 13 containing vanadium pentoxide arrives at the sealing station, the sealing equipment automatically seals the bag opening. The heat sealer melts and adheres the plastic film by heating, while the ultrasonic sealing machine 12 uses the heat generated by ultrasonic vibration to achieve sealing.

[0027] like Figure 3 As shown, the refrigeration chamber 6 has several evenly distributed heat dissipation plates 61 inside. One end of each heat dissipation plate 61 extends to the outside of the refrigeration chamber 6 and connects to a radiator 62. Both the heat dissipation plate 61 and the radiator 62 are heat-conducting components. The heat-conducting components are any one or more combinations of metal matrix composites, carbon fiber composites, copper, aluminum, or aluminum alloys. This effectively reduces the temperature of the refrigerant in the refrigeration chamber 6, allowing the refrigerant to be recycled and continuously cooling the cooling pipe 8 and the cooling pipe 10.

[0028] In operation, vanadium pentoxide produced in the calcination furnace enters the feeding box 1 directly through the feeding pipe 2 and is gradually transported forward by the conveyor belt 3. Temperature changes are monitored by the temperature detection device 11 during transport. Simultaneously, the cooling fan 5 draws cold air generated by the cooling pipe 8 through the vent holes to the surface of the vanadium pentoxide for cooling. When the temperature reaches the set value, the conveyor belt 3 carries the vanadium pentoxide from the feeding end into the gravity filling machine 9. The cooling pipe 10 on the gravity filling machine 9 further cools the vanadium pentoxide. When the gravity sensor 93 in the gravity filling machine 9 detects that the weight of the vanadium pentoxide has reached the set value, the conveyor belt 3 stops feeding. The solenoid valve 92 at the bottom of the gravity filling machine 9 allows the vanadium pentoxide to fall into the packaging bag 13 on the discharge pipe 91. After the packaging bag 13 is full, it is sealed by the sealing machine 12, thus completing the feeding, cooling, transporting, metering, and sealing of the vanadium pentoxide. The sealing machine 12 uses existing conventional equipment. Generally, there are support structures at the bottom and sides of the packaging bag 13, which facilitates the filling of the packaging bag 13 and can monitor information such as the length of the packaging bag 13 to achieve continuous automated sealing.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic sealing and unloading device for a vertical externally heated roasting furnace, characterized in that: Includes a material discharge box (1), the top of which is provided with a material discharge pipe (2) connected to the discharge port of the roasting furnace, a conveyor belt (3) installed inside the material discharge box (1), the conveyor belt (3) is driven by a drive motor (4), the conveyor belt (3) is provided with ventilation holes, and a cooling fan (5) is provided at the bottom of the conveyor belt (3), the cooling fan (5) is used to cool the material on the conveyor belt (3) through the ventilation holes; The material box (1) is equipped with a gravity filling machine (9), the inlet of the gravity filling machine (9) is located at the outlet end of the conveyor belt (3), and the bottom of the gravity filling machine (9) is equipped with a sealing machine (12).

2. The automatic sealing and blanking device of a vertical externally heated calcining furnace according to claim 1, characterized in that: It also includes a refrigeration box (6), which is filled with coolant. The refrigeration box (6) is connected to one end of a cooling pipe (8) via a pump body (7), and the other end of the cooling pipe (8) flows back to the refrigeration box (6). The cooling pipe (8) is arranged at the bottom of the cooling fan (5), and the cooling fan (5) is used to draw the cold air from the cooling pipe (8) into the material on the conveyor belt (3) to achieve cooling.

3. The automatic sealing and unloading device for a vertical externally heated roasting furnace according to claim 2, characterized in that: A second cooling pipe (10) is connected between the first cooling pipe (8) and the pump body (7). The second cooling pipe (10) is wrapped around the outside of the gravity filling machine (9) to cool the gravity filling machine (9) and the material inside it.

4. The automatic sealing and unloading device for a vertical externally heated roasting furnace according to claim 1, characterized in that: The material feeding box (1) is equipped with a temperature detection device (11), which is used to monitor the temperature change of the material.

5. The automatic sealing and unloading device for a vertical externally heated roasting furnace according to claim 3, characterized in that: The discharge pipe (91) of the gravity filling machine (9) is equipped with a solenoid valve (92), and the solenoid valve (92) is equipped with a gravity sensor (93) for monitoring the weight of the material in the gravity filling machine (9).

6. The automatic sealing and unloading device for a vertical externally heated roasting furnace according to claim 5, characterized in that: The gravity filling machine (9) has a packaging bag (13) fitted on its discharge pipe (91), and the sealing machine (12) is used to heat-seal the packaging bag (13) after it has been filled.

7. The automatic sealing and unloading device for a vertical externally heated roasting furnace according to claim 2, characterized in that: The refrigeration box (6) is provided with several evenly distributed heat dissipation plates (61). One end of the heat dissipation plate (61) extends to the outside of the refrigeration box (6) and is connected to the radiator (62). Both the heat dissipation plate (61) and the radiator (62) are heat-conducting components.

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