Sealed glue discharging system for atmosphere sintering furnace

Abstract

The invention relates to a sealed glue discharging system for an atmosphere sintering furnace, and belongs to the technical field of glue discharging sintering, a heat preservation layer is arranged at the bottom of a glue discharging plate, when a product located at the top of the glue discharging plate is sintered in a sintering shell, glue oil generated by the product can directly drop on the glue discharging plate, the glue oil is prevented from making direct contact with the heat preservation layer, and the glue discharging effect is improved. The problems that due to the fact that refractory materials are arranged on the inner wall of an existing sintering furnace and make direct contact with a product, rubber oil generated by product sintering can drop onto the refractory materials in the product sintering process of the sintering furnace, the heat preservation effect of the refractory materials is invalid, and the service life of the product is prolonged are solved. Therefore, the temperature in the sintering furnace cannot be maintained in a constant temperature, and the sintering and glue discharging quality of a product is influenced.

Description

Technical Field

[0001] The invention belongs to the technical field of debinding and sintering, and in particular relates to a sealed debinding system for an atmosphere sintering furnace. Background Art

[0002] As a part of the tunnel furnace, the sintering furnace is a mechanical equipment that completes the sintering of materials through heat conduction, convection and radiation.

[0003] For example, the utility model patent with patent authorization announcement number: CN215002896U discloses a heating device for a binder removal and sintering integrated furnace, including a binder removal and sintering integrated furnace body, a heating ring, a control box, a base, and a temperature measuring component. Support legs are arranged at the four corners of the bottom of the base and are supported and fixed above the ground by the support legs. The control box is located on the end face of the base and is fixedly connected to the base and is powered by an external power supply. The binder removal and sintering integrated furnace body is located above the base and the bottom end is fixedly connected to the upper end surface of the base. The heating ring is arranged around the inner wall of the binder removal and sintering integrated furnace body and is fixed on the inner wall of the binder removal and sintering integrated furnace body, and the bottom is connected to the output end of the control box through a wire. The temperature measuring component is located above the interior of the binder removal and sintering integrated furnace body and is fixedly connected to the top inner wall of the binder removal and sintering integrated furnace body and is connected to the input end of the control box through a wire.

[0004] Based on the search of the above patent authorization announcement number and the shortcomings found therein:

[0005] The inner walls of existing sintering furnaces are all provided with refractory materials. Since the refractory materials are in direct contact with the products, such a setting causes the glue oil produced by the sintering of the products to drip onto the refractory materials during the sintering process of the products in the sintering furnace, causing the thermal insulation effect of the refractory materials to fail, and then the temperature in the sintering furnace cannot be maintained at a constant temperature, thereby affecting the quality of the sintering and debinding of the products. Summary of the invention

[0006] In order to solve the problem that the inner wall of the existing sintering furnace is provided with refractory materials, since the refractory materials are in direct contact with the products, such a setting causes the glue oil produced by the sintering of the products in the sintering process of the sintering furnace to drip onto the refractory materials, causing the thermal insulation effect of the refractory materials to fail, and then causing the temperature in the sintering furnace to be unable to be maintained at a constant temperature, thereby affecting the quality of the sintering and debinding of the products. The present invention provides a sealed debinding system for an atmosphere sintering furnace.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A sealed debinding system for an atmosphere sintering furnace, comprising a sintering shell with a hollow interior, a heat-insulating layer and a debinding component, wherein a transmission space is provided inside the sintering shell, and a product is placed in the transmission space, and the debinding component comprises a debinding plate, and the sintering shell is provided with a debinding slot hole, and the debinding slot hole is connected to the transmission space, and the debinding plate is arranged in the debinding slot hole;

[0009] The sintering shell is also provided with an insulation slot hole, which is interconnected with the debinding slot hole, and the insulation layer is attached to the bottom surface of the debinding plate; viewed from top to bottom, the shadow area of ​​the debinding plate projected to the bottom surface covers the shadow area of ​​the insulation layer projected to the bottom surface.

[0010] As a preferred technical solution of the present invention, it also includes a heating component, the heating component includes a plurality of heating wires, the sintering shell is also provided with a plurality of first heating slots, the plurality of first heating slots are arranged at equal intervals in the bottom of the sintering shell along the transmission direction of the product, the plurality of heating wires are matched with the plurality of first heating slots in a one-to-one correspondence, and any of the heating wires is arranged in the corresponding first heating slot; the thermal insulation layer seals the open end of the first heating slot.

[0011] As a preferred technical solution of the present invention, a plurality of second heating slots are further provided on the top of the sintering shell, the second heating slots are interconnected with the transmission space, and the plurality of second heating slots are arranged at equal intervals in the top of the sintering shell along the transmission direction of the product; two groups of heating components are provided, and another group of heating components includes a plurality of heating wires, and another group of heating wires of the heating components is matched one-to-one with a plurality of second heating slots, and any heating wire of the other group of heating components is arranged in the corresponding second heating slot; two insulation layers are provided, another insulation layer is fitted on the top of the transmission space, and the other insulation layer is fitted on the open end of the second heating slot.

[0012] As a preferred technical solution of the present invention, the debonding plate is arranged at an angle, and the arrangement height of the debonding plate gradually increases from the entrance and exit end close to the transmission space to the entrance and exit end far from the transmission space.

[0013] As a preferred technical solution of the present invention, the debinding assembly also includes an internally hollow debinding pipe, which is vertically arranged outside the sintered shell. One end of the debinding pipe is sealed and passes through the sintered shell and is connected to the lowest point of the setting height of the debinding plate, and the other end of the debinding pipe is arranged outside the sintered shell.

[0014] As a preferred technical solution of the present invention, the debinding assembly also includes an exhaust pipe, which is arranged at the top of the transmission space, one end of the exhaust pipe is connected to the external environment by passing through the sintered shell, and the other end of the exhaust pipe is arranged at a position away from the entrance and exit of the transmission space.

[0015] As a preferred technical solution of the present invention, the debinding assembly also includes a fan and a connecting pipe, the connecting pipe is connected to one end of the exhaust pipe arranged outside the sintering shell, the fan is arranged at the top outside the sintering shell, and the wind generated by the fan passes through the other end surface of the connecting pipe.

[0016] As a preferred technical solution of the present invention, it also includes a temperature sensor, which is arranged near the entrance and exit ends of the transmission space and is used to detect the temperature of the area.

[0017] As a preferred technical solution of the present invention, it also includes a sealing plate, which is arranged at the entrance and exit ends of the transmission space, and the sealing plate can lock or release its sealing matching relationship with the entrance and exit ends of the transmission space.

[0018] As a preferred technical solution of the present invention, it also includes a high-temperature sealing gasket, which is fitted at the entrance and exit ends of the transmission space, and the sealing plate can lock or release its sealing relationship with the high-temperature sealing gasket.

[0019] The beneficial effects of the present invention are:

[0020] This solution arranges the thermal insulation layer at the bottom of the debinding plate. When the product located on the top of the debinding plate is sintered in the sintering shell, the glue oil produced by the product will directly drip onto the debinding plate, avoiding direct contact between the glue oil and the thermal insulation layer, which will lead to the failure of the thermal insulation effect of the thermal insulation layer. This solves the problem that the inner wall of the existing sintering furnace is provided with refractory materials. Since the refractory materials are in direct contact with the products, such a setting causes the glue oil produced by the sintering of the products in the sintering furnace to drip onto the refractory materials, causing the thermal insulation effect of the refractory materials to fail, and then causing the temperature in the sintering furnace to be unable to maintain a constant temperature, thereby affecting the quality of the sintering and debinding of the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 The present invention is a schematic diagram of the structure inside a sintering shell of a sealed debinding system for an atmosphere sintering furnace.

[0023] Description of main symbols

[0024] In the figure: 1. sintering shell; 2. insulation layer; 3. debonding assembly; 301. debonding plate; 302. debonding pipe; 303. exhaust pipe; 304. fan; 305. connecting pipe; 4. heating assembly; 401. heating wire; 5. temperature sensor; 6. sealing plate; 7. high temperature sealing gasket. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0026] See also Figure 1 The present embodiment provides a sealed debinding system for an atmosphere sintering furnace, comprising a sintering shell 1 with a hollow interior, a thermal insulation layer 2 and a debinding component 3. A transmission space is provided inside the sintering shell 1, and the product is placed in the transmission space. The debinding component 3 comprises a debinding plate 301. The sintering shell 1 is provided with a debinding slot hole, which is connected to the transmission space, and the debinding plate 301 is arranged in the debinding slot hole; the sintering shell 1 is also provided with a thermal insulation slot hole, which is connected to the debinding slot hole, and the thermal insulation layer 2 is arranged on the bottom surface of the debinding plate 301; from top to bottom, the shadow area of ​​the debinding plate 301 projected to the bottom surface covers the shadow area of ​​the thermal insulation layer 2 projected to the bottom surface; this scheme is achieved by covering the thermal insulation layer 2 with the debinding plate 301. Layer 2 is arranged at the bottom of the debinding plate 301. When the product located on the top of the debinding plate 301 is sintered in the sintering shell 1, the glue oil produced by the product will directly drip onto the debinding plate 301, avoiding direct contact between the glue oil and the thermal insulation layer 2, which in turn causes the thermal insulation effect of the thermal insulation layer 2 to fail. This solves the problem that the inner wall of the existing sintering furnace is provided with refractory materials. Since the refractory materials are in direct contact with the products, such a setting causes the glue oil produced by the sintering of the products in the sintering furnace to drip onto the refractory materials, causing the thermal insulation effect of the refractory materials to fail, and then causing the temperature in the sintering furnace to be unable to be maintained at a constant temperature, thereby affecting the quality of the sintering and debinding of the products.

[0027] Specifically, the present scheme also includes a heating component 4, which includes a plurality of heating wires 401. The sintering shell 1 is also provided with a plurality of first heating slots, which are arranged at equal intervals in the bottom of the sintering shell 1 along the transmission direction of the product. The plurality of heating wires 401 are matched with the plurality of first heating slots one by one, and any heating wire 401 is arranged in the corresponding first heating slot; the thermal insulation layer 2 seals the open end of the first heating slot; by providing the heating wire 401, the function of the heating wire 401 is to transfer the heat to the transmission space through the thermal insulation layer 2 by itself generating heat, so that the temperature in the transmission space is maintained at a constant level, ensuring that the product can be sintered normally.

[0028] In order to speed up the temperature increase in the transmission space, the top of the sintering shell 1 of the present scheme is also provided with a plurality of second heating slots, which are interconnected with the transmission space, and are arranged in the top of the sintering shell 1 at equal intervals along the transmission direction of the product; two groups of heating components 4 are provided, and the other group of heating components 4 includes a plurality of heating wires 401, and the plurality of heating wires 401 of the other group of heating components 4 are matched one-to-one with the plurality of second heating slots, and any heating wire 401 of the other group of heating components 4 is arranged in the corresponding second heating slot; two insulation layers 2 are provided, and the other insulation layer 2 is arranged in affixed connection with the top of the transmission space, and the other insulation layer 2 is arranged in affixed connection with the open end of the second heating slot, and the other insulation layer 2 is used to seal the open end of the second heating slot; by arranging the heating components 4 at the top and bottom of the transmission space in the sintering shell 1, the two groups of heating components 4 work together to increase the temperature in the transmission space at the same time.

[0029] In addition, in order to facilitate the removal of the glue oil dripping onto the glue discharge plate 301, the glue discharge plate 301 of the present embodiment is arranged at an angle, and the setting height of the glue discharge plate 301 gradually increases from the entrance and exit end close to the transmission space to the entrance and exit end far away from the transmission space; through such a setting, the glue oil at the higher end of the glue discharge plate 301 flows to the lower end of the glue discharge plate 301; it should be noted that the exit and entrance of the transmission space of the present embodiment are the same.

[0030] Furthermore, in order to facilitate the discharge of the glue oil in the transmission space, the glue discharge component 3 of the present embodiment also includes an internally hollow glue discharge pipe 302, which is vertically arranged outside the sintering shell 1, and one end of the glue discharge pipe 302 is sealed and passes through the sintering shell 1 and is connected to the lowest point of the setting height of the glue discharge plate 301, and the other end of the glue discharge pipe 302 is arranged outside the sintering shell 1; when the glue oil slides to the lower end of the glue discharge plate 301, the glue oil located there will be discharged out of the transmission space through the glue discharge pipe 302.

[0031] In addition, it is worth noting that in the process of sintering, the product of this solution will not only produce rubber oil, but also rubber oil waste gas. Based on this, in order to discharge the rubber oil waste gas out of the transmission space, the debonding component 3 of this solution also includes an exhaust pipe 303, which is arranged at the top of the transmission space, one end of the exhaust pipe 303 is connected to the external environment by passing through the sintering shell 1, and the other end is arranged at a position far away from the entrance and exit end of the transmission space; by providing the exhaust pipe 303, the rubber oil waste gas in the transmission space will be discharged out of the sintering shell 1 through the exhaust pipe 303, so as to achieve the removal of the rubber oil waste gas. It is also worth noting that the air inlet end of the exhaust pipe 303 located in the transmission space of this solution is arranged at a position far away from the entrance and exit end of the transmission space. Such a setting is conducive to moving the rubber oil waste gas generated by the product during the sintering process to a position far away from the entrance and exit end of the transmission space, so as to avoid the staff from inhaling too much rubber oil waste gas when pushing the product through the entrance and exit end of the transmission space, thereby damaging their health.

[0032] Furthermore, in order to ensure that the rubber and oil waste gas in the exhaust pipe 303 can be smoothly discharged to the external environment, the rubber removal component 3 of the present scheme also includes a fan 304 and a connecting pipe 305. The connecting pipe 305 is connected to one end of the exhaust pipe 303 arranged outside the sintering shell 1. The fan 304 is arranged at the top outside the sintering shell 1. The wind generated by the fan 304 passes through the other end surface of the connecting pipe 305. By providing the fan 304, an air pressure difference is formed at both ends of the connecting pipe 305, and then an air pressure difference exists between the connecting pipe 305 and the exhaust pipe 303, so that the rubber and oil waste gas in the exhaust pipe 303 will move to the outside of the connecting pipe 305 due to the air pressure difference, and then be discharged to the external environment.

[0033] In order to ensure that the temperature in the transmission space reaches the specified temperature, the present solution is further provided with a temperature sensor 5, which is arranged near the inlet and outlet ends of the transmission space, and the temperature sensor 5 is used to detect the temperature of the area; this is due to the arrangement of the heating component 4 of the present solution, so that the heating speed of the two ends of the sintering shell 1 is slower than the heating speed in the middle. In addition, due to the position near the inlet and outlet ends of the transmission space, and the inclined arrangement of the debonding plate 301, the vertical distance between the debonding plate and the transmission space becomes longer, which causes the heating speed of the two ends of the sintering shell 1. Only the heating speed of the position near the inlet and outlet ends of the transmission space is the slowest. Therefore, it is only necessary to arrange the temperature sensor 5 at this position. As long as the temperature of this position can reach the specified temperature, it can be ensured that the remaining positions of the sintering shell 1 can reach the specified temperature.

[0034] In order to ensure that the product is placed in the transmission space and the transmission space in the sintering shell 1 is in a sealed state, the present solution is also provided with a sealing plate 6, which is arranged at the entrance and exit ends of the transmission space, and the sealing plate 6 can lock or release its sealing fitting relationship with the entrance and exit ends of the transmission space; further, in order to improve the sealing effect between the sealing plate 6 and the entrance and exit ends of the transmission space, it also includes a high-temperature sealing gasket 7, which is fitted at the entrance and exit ends of the transmission space, and the sealing plate 6 can lock or release its sealing fitting relationship with the high-temperature sealing gasket 7.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sealed debinding system for an atmosphere sintering furnace, characterized in that: It comprises a sintered shell with a hollow interior, a heat-insulating layer and a binder removal component, wherein a transmission space is provided inside the sintered shell, and the product is placed in the transmission space, and the binder removal component comprises a binder removal plate, and the sintered shell is provided with a binder removal slot hole, and the binder removal slot hole is connected with the transmission space, and the binder removal plate is arranged in the binder removal slot hole; The sintering shell is also provided with an insulation slot hole, which is interconnected with the debinding slot hole, and the insulation layer is attached to the bottom surface of the debinding plate; viewed from top to bottom, the shadow area of ​​the debinding plate projected to the bottom surface covers the shadow area of ​​the insulation layer projected to the bottom surface.

2. A sealed debinding system for an atmosphere sintering furnace according to claim 1, characterized in that: It also includes a heating component, which includes a plurality of heating wires. The sintering shell is also provided with a plurality of first heating slots, which are arranged at equal intervals in the bottom of the sintering shell along the transmission direction of the product. The plurality of heating wires are matched with the plurality of first heating slots in a one-to-one correspondence, and any of the heating wires is arranged in the corresponding first heating slot; the thermal insulation layer seals the open end of the first heating slot.

3. A sealed debinding system for an atmosphere sintering furnace according to claim 2, characterized in that: A plurality of second heating slots are also provided on the top of the sintering shell, and the second heating slots are interconnected with the transmission space, and the plurality of second heating slots are arranged at equal intervals in the top of the sintering shell along the transmission direction of the product; two groups of heating components are provided, and the other group of heating components includes a plurality of heating wires, and the plurality of heating wires of the other group of heating components are matched one-to-one with the plurality of second heating slots, and any of the heating wires of the other group of heating components is arranged in the corresponding second heating slot; two insulation layers are provided, and the other insulation layer is fitted on the top of the transmission space, and the other insulation layer is fitted on the opening end of the second heating slot.

4. The sealed debinding system for an atmosphere sintering furnace according to claim 1, characterized in that: The glue removal plate is arranged obliquely, and the arrangement height of the glue removal plate gradually increases from the entrance and exit end close to the transmission space to the entrance and exit end far away from the transmission space.

5. The sealed debinding system for an atmosphere sintering furnace according to claim 4, characterized in that: The debinding assembly also includes a debinding pipe with a hollow interior, which is vertically arranged outside the sintering shell. One end of the debinding pipe is sealed and passes through the sintering shell and is connected to the lowest point of the setting height of the debinding plate, and the other end of the debinding pipe is arranged outside the sintering shell.

6. The sealed debinding system for an atmosphere sintering furnace according to claim 1, characterized in that: The debinding assembly also includes an exhaust pipe, which is arranged at the top of the transmission space. One end of the exhaust pipe is connected to the external environment by passing through the sintered shell, and the other end of the exhaust pipe is arranged at a position far away from the entrance and exit of the transmission space.

7. A sealed debinding system for an atmosphere sintering furnace according to claim 6, characterized in that: The debinding assembly also includes a fan and a connecting pipe, the connecting pipe is connected to one end of the exhaust pipe arranged outside the sintering shell, the fan is arranged on the top outside the sintering shell, and the wind generated by the fan passes through the other end surface of the connecting pipe.

8. The sealed debinding system for an atmosphere sintering furnace according to claim 1, characterized in that: It also includes a temperature sensor, which is arranged near the entrance and exit ends of the transmission space and is used to detect the temperature of the area.

9. The sealed debinding system for an atmosphere sintering furnace according to claim 1, characterized in that: It also includes a sealing plate, which is arranged at the inlet and outlet ends of the transmission space, and the sealing plate can lock or release its sealing matching relationship with the inlet and outlet ends of the transmission space.

10. A sealed debinding system for an atmosphere sintering furnace according to claim 9, characterized in that: It also includes a high-temperature sealing gasket, which is fitted at the entrance and exit ends of the transmission space, and the sealing plate can lock or release its sealing relationship with the high-temperature sealing gasket.

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