CN210533032U - Wide-hearth high-temperature sintering furnace - Google Patents

Abstract

A wide-hearth high-temperature sintering furnace belongs to the technical field of electronic kiln facilities. Comprises a furnace body, wherein the center of the furnace body is provided with a hearth; among the furnace top bricks, the furnace top brick which is positioned at the bottom layer and corresponds to the top of the furnace is a furnace top wall brick, the furnace top brick which corresponds to the left side of the furnace top wall brick is a silicon-molybdenum rod left heating element abdicating hole brick, and the furnace top brick which corresponds to the right side of the furnace top wall brick is a silicon-molybdenum rod right heating element abdicating hole brick; the method is characterized in that: the upward surface of one side of the furnace top wall brick is flat, a herringbone cavity of the furnace top wall brick is arranged on the downward side of the furnace top wall brick, the right side of the silicon-molybdenum rod left heating element abdicating hole brick extends into the furnace, the left side of the silicon-molybdenum rod right heating element abdicating hole brick extends into the furnace, the left side of the furnace top wall brick is supported on the silicon-molybdenum rod left heating element abdicating hole brick, and the right side of the furnace top wall brick is supported on the silicon-molybdenum rod right heating element abdicating hole brick. The workload is reduced and the building difficulty is reduced; the good heat insulation performance is embodied; the integral stability of the furnace body is guaranteed.

Description

Wide-hearth high-temperature sintering furnace

Technical Field

The utility model belongs to the technical field of electronic kiln facility, concretely relates to wide furnace high temperature fritting furnace.

Background

The hearth of the aforementioned sintering furnace is generally of three sizes: the first one is a narrow hearth and is suitable for a single push plate with the side length of less than 220mm, and the hearth cannot be suitable for a large-size push plate due to the relatively small width of the hearth; the second is a wider hearth, also called a large-size single-push-plate hearth, and is suitable for push plates with the side length of 220-; and the third is a wide hearth, which can adapt to double push plates or three push plates with the side length of 220-.

As known in the art, the hearth structure of the furnace body, the heating member and the arrangement thereof are important components of the sintering furnace for sintering various electronic components, and for sintering various common and special high-end electronic powder materials. This can be verified by the "hearth structure of battery material sintering furnace" recommended by chinese patent CN105783517A and the "hearth heating device of MIN sintering furnace" provided by CN 204934610U.

In the three hearths, the furnace top structure of the narrow hearth is relatively simple, and particularly, the furnace top bricks corresponding to the top of the hearth form a flat top structure by adopting a traditional flat building mode, so that the use requirement and the requirement for ensuring the stability of the furnace body structure can be met; for a wider hearth, a furnace top brick generally adopts a herringbone top structure, the herringbone top structure is formed by splicing two bricks or bricks on two sides, and the top surfaces of the furnace wall bricks are inclined, so that the furnace top bricks need to be inclined planes when being built on the inclined planes, the building efficiency is relatively low, the building engineering quantity is large, the manufacturing cost is high due to very strict building requirements, and in addition, when the furnace adopts the silicon-molybdenum rods as heating elements, the installation and the arrangement of the silicon-molybdenum rods are correspondingly very difficult. In addition, when the herringbone roof structure is pressed, extrusion force towards two sides is generated, and the furnace body is liable to deform; for a wide hearth, namely a hearth of a sintering furnace corresponding to a double push plate or a triple push plate, an arc vault structure is usually adopted, the construction amount of the structure is large, the stability of the structure of the furnace top is difficult to guarantee, and the structure is not suitable for the sintering high temperature of about 1500-.

From the overall structure of the hearth, the hearth is constructed (i.e., enclosed) by wall bricks built along both sides of the length direction of the furnace body, bottom bricks located at the bottom of the furnace body, and top bricks located at the top of the furnace body.

Further, as known in the art, some electronic materials such as alumina substrates, aluminum nitride substrates, ceramic substrates, etc. have relatively high sintering temperatures of about 1500-.

Still as known in the art, the silicon-molybdenum rod is essentially a molybdenum disilicide electrothermal component, which is a resistance heating component based on molybdenum silicide, and is heated to a high temperature in an oxidizing atmosphere, and a layer of dense quartz glass film formed on the surface of the silicon-molybdenum rod can play a good role in protection, so that the silicon-molybdenum rod is not oxidized any more. Therefore, the silicon-molybdenum rod has the high-temperature oxidation resistance, the maximum temperature can reach 1800 ℃ under the oxidation atmosphere, and the normal applicable temperature is about 1500-.

The shape of the silicon-molybdenum rod mainly includes a W shape, a straight shape and a U shape, and the W-shaped silicon-molybdenum rod is generally horizontally placed for use, for example, because the heating ends in the electric furnace are more distributed and the heat efficiency is higher, in order to save cost, the W-shaped silicon-molybdenum rod is suitable for the electric furnace with a shorter furnace chamber height and is not suitable for being used as a heating component of the sintering furnace of the electronic component and the electronic powder material with relatively long length and relatively higher furnace chamber height; the in-line silicon-molybdenum rod is mainly used for heating furnaces with relatively simple structures and small volumes, such as the 'enamel heating furnace heated by the silicon-molybdenum rod' recommended by Chinese patent CN208382876U, and in addition, the in-line silicon-molybdenum rod is used in a longitudinal state, so that the fixation is relatively difficult; the U-shaped silicon-molybdenum rod can combine the advantages of the W-shaped silicon-molybdenum rod and the straight-line silicon-molybdenum rod, for example, the U-shaped silicon-molybdenum rod can be longitudinally suspended and used like the straight-line silicon-molybdenum rod in a use state, does not need to be horizontally arranged and used like the W-shaped silicon-molybdenum rod, and can meet the use requirements of the tunnel-type sintering furnace which is relatively long and relatively high in height, so the U-shaped silicon-molybdenum rod is heavier than the prior art. The upper end of the U-shaped silicon-molybdenum rod is positioned on the furnace top brick corresponding to the upper part of the furnace hearth, the lower end of the U-shaped silicon-molybdenum rod extends into the furnace hearth, and the silicon-molybdenum rods are arranged at two sides of the furnace hearth in the length direction at intervals.

The traditional method is as follows: and silicon-molybdenum rod abdicating holes for two ends of the upper part of the U-shaped silicon-molybdenum rod to pass through are preset on the position, corresponding to the U-shaped silicon-molybdenum rod, of the furnace top brick corresponding to the top of the hearth, two ends of the upper part of the silicon-molybdenum rod are extended above the furnace top brick positioned at the uppermost part to meet the requirement of connection with a power supply, and the lower end of the silicon-molybdenum rod is extended to the bottom of the hearth in a longitudinal cantilever state. Although the structural arrangement can meet the use requirements, when the silicon-molybdenum rod needs to be replaced after being used for a period of time, such as one to two years, the silicon-molybdenum rod can be taken out only by detaching the furnace top bricks, and the furnace top bricks need to be rebuilt when the silicon-molybdenum rod is returned after being replaced, so that the work load of replacing the silicon-molybdenum rod is large, the cost of replacing the silicon-molybdenum rod is high, the furnace top bricks need to be disassembled and assembled to a large extent, the whole structure of the furnace body is affected, the silicon-molybdenum rod replacement time is long, the sintering furnace is treated and treated as a project, the shutdown time of the sintering furnace is long, the sintering efficiency of electronic components and/or electronic powder materials is affected, the furnace top bricks need to be detached every time, the initial sealing effect is difficult to be ensured, and the silicon rod is expanded at the position of the molybdenum rod relief hole of the furnace top brick under high temperature, so that the silicon rod and the furnace top brick tend to be integrated The structure of the furnace top brick is difficult to remove, and the operation intensity of operators is high because a plurality of furnace top furnaces expanded by silicon-molybdenum rods need to be removed together.

In view of the technical problems not limited to the foregoing, there is a need for reasonable improvements, and the technical solutions described below are made in this context.

Disclosure of Invention

The utility model discloses a first task lies in providing one kind and helps conveniently building furnace's furnace roof and can reduce the engineering volume and reduce and build the degree of difficulty by laying bricks or stones, be favorable to making about the roof brick that corresponds to the furnace top and the silicon molybdenum rod of both sides heating element step down between the hole brick tend to not have the piece cooperation and can embody good thermal-insulated heat insulating ability, be of value to make about the silicon molybdenum rod heating element step down the hole brick to the reliable support of furnace roof wall brick and can ensure the wide furnace high temperature sintering furnace of the stability of structure.

Another task of the utility model is to provide a help showing the engineering volume that reduces to change the silicon molybdenum stick and can reducing the cost of changing the silicon molybdenum stick, be favorable to showing the time that shortens to change the silicon molybdenum stick and can ensure the sintering efficiency to electronic components and electronic powder material etc., be of value to avoiding influencing because of changing the sealed production at silicon molybdenum stick to the furnace top and must ensure the initial sealed effect of furnace body, there is the wide furnace high temperature sintering furnace who is convenient for avoid silicon molybdenum stick and brick body to expand to tie as an organic whole and can conveniently change the silicon molybdenum stick and can show the working strength that reduces to change the silicon molybdenum stick.

For embodying the utility model's task of priority, the utility model provides a technical scheme is: a wide hearth high-temperature sintering furnace comprises a furnace body, wherein a hearth penetrating from the front end to the rear end of the furnace body in the length direction is formed in the center of the furnace body, and the hearth is surrounded by hearth bricks horizontally built along the inner bottom of the furnace body in the length direction, furnace wall bricks longitudinally built along the left inner wall and the right inner wall of the furnace body in the length direction and based on the hearth bricks, and furnace roof bricks horizontally built along the top of the furnace body in the length direction and based on the furnace wall bricks; among the furnace roof bricks, the furnace roof brick which is positioned at the bottom layer and corresponds to the top of the furnace chamber is formed into a furnace chamber roof wall brick, the furnace roof brick which corresponds to the left side of the furnace chamber roof wall brick is formed into a silicon-molybdenum rod left heating element abdication hole brick, and the furnace roof brick which corresponds to the right side of the furnace chamber roof wall brick is formed into a silicon-molybdenum rod right heating element abdication hole brick; characterized in that the upward surface of the hearth top wall brick is flat, the downward side of the hearth top wall brick forms a herringbone cavity of the hearth top wall brick with a herringbone cross section, the right side of the left heating element abdicating hole brick of the silicon-molybdenum rod extends into the hearth, the left side of the right heating element abdicating hole brick of the silicon-molybdenum rod extends into the hearth, the left side of the hearth top wall brick is supported on the left heating element abdicating hole brick of the silicon-molybdenum rod, and the right side of the hearth top wall brick is supported on the right heating element abdicating hole brick of the silicon-molybdenum rod.

In a specific embodiment of the present invention, the left lower portion of the hearth ceiling brick is configured to have a left supporting step cavity of the hearth ceiling brick, and the right lower portion of the hearth ceiling brick is configured to have a right supporting step cavity of the hearth ceiling brick, the left supporting step cavity of the hearth ceiling brick is matched with the left supporting of the silicon-molybdenum rod left heating element abdicating hole brick, and the right supporting step cavity of the hearth ceiling brick is matched with the right supporting of the silicon-molybdenum rod right heating element abdicating hole brick.

In another specific embodiment of the present invention, a hearth top wall brick left inclined plane is formed on a left side of the hearth top wall brick and on a side surface corresponding to the left side of the hearth top wall brick left supporting step cavity, and a hearth top wall brick right inclined plane is formed on a right side of the hearth top wall brick and on a side surface corresponding to the right side of the hearth top wall brick right supporting step cavity; a left silicon-molybdenum rod heating element abdicating hole brick right inclined plane is formed on the right side of the left silicon-molybdenum rod heating element abdicating hole brick and at the position corresponding to the left inclined plane of the hearth top wall brick, and a right silicon-molybdenum rod heating element abdicating hole brick left inclined plane is formed on the left side of the right silicon-molybdenum rod heating element abdicating hole brick and at the position corresponding to the right inclined plane of the hearth top wall brick; the left inclined plane of the hearth top wall brick and the right inclined plane of the silicon-molybdenum rod left heating element abdicating perforated brick are opposite in inclination direction and matched with each other, and the right inclined plane of the hearth top wall brick and the right inclined plane of the silicon-molybdenum rod right heating element abdicating perforated brick are opposite in inclination direction and matched with each other.

For embodying another task of the utility model, the utility model provides a technical scheme is: a left heating element of the silicon-molybdenum rod is arranged in the length direction of the left side of the hearth at intervals at the position corresponding to the left heating element abdication hole brick of the silicon-molybdenum rod, a right heating element of the silicon-molybdenum rod is arranged in the length direction of the right side of the hearth at intervals at the position corresponding to the right heating element abdication hole brick of the silicon-molybdenum rod, a left brick plugging mechanism with the number equal to that of the left heating elements of the silicon-molybdenum rod is built in the top brick of the furnace at the position corresponding to the upper part of the left heating element abdication hole brick of the silicon-molybdenum rod, a right brick plugging mechanism with the number equal to that of the right heating elements of the silicon-molybdenum rod is built in the position corresponding to the right heating element abdication hole brick of the silicon-molybdenum rod, a left extraction release brick which is in plug-in fit with the upper part of the left brick plugging mechanism is arranged at the top of the furnace body at the position corresponding to the left brick plugging mechanism, and an upper part which is in plug-in fit with the right brick plugging mechanism is arranged at the And the lower end of the left heating element of the silicon-molybdenum rod passes through the left brick plugging mechanism and extends to the bottom of the hearth in a longitudinal cantilever state, the upper end of the left heating element of the silicon-molybdenum rod passes through the left extraction release brick from bottom to top and protrudes out of the upper surface of the left extraction release brick, the lower end of the right heating element of the silicon-molybdenum rod passes through the right brick plugging mechanism and extends to the bottom of the hearth in a longitudinal cantilever state, and the upper end of the right heating element of the silicon-molybdenum rod passes through the right extraction release brick from bottom to top and protrudes out of the upper surface of the right extraction release brick.

In another specific embodiment of the present invention, a silicon-molybdenum rod left heating element lower end probing groove is disposed on the bottom brick at the bottom of the furnace chamber and at a position corresponding to the silicon-molybdenum rod left heating element, and a silicon-molybdenum rod right heating element lower end probing groove is disposed at a position corresponding to the silicon-molybdenum rod right heating element; the lower end of the left heating element of the silicon-molybdenum rod sequentially penetrates through the left brick plug mechanism and the abdication hole brick of the left heating element of the silicon-molybdenum rod, extends towards the bottom of the hearth in a longitudinal cantilever state and extends into the lower end of the left heating element of the silicon-molybdenum rod to penetrate into the groove, and the lower end of the right heating element of the silicon-molybdenum rod sequentially penetrates through the right brick plug mechanism and the abdication hole brick of the right heating element of the silicon-molybdenum rod, extends towards the bottom of the hearth in a longitudinal cantilever state and extends into the lower end of the right heating element of the silicon-molybdenum rod to penetrate into the groove.

In a further specific embodiment of the present invention, the left plug mechanism includes a lower left plug, a middle left plug, and an upper left plug, the lower left plug is supported on one side of the left heating element abdicating hole of the silicon-molybdenum rod, the middle left plug is stacked on the upper portion of the lower left plug, the upper left plug is stacked on the upper portion of the middle left plug, the left extraction release brick is located at the top of the furnace body and is matched with the top plug of the upper left plug, the lower left plug, the middle left plug, and the upper left plug are fixed by the top brick, the lower end of the left heating element of the silicon-molybdenum rod is located in the longitudinal cantilever state after passing through the upper left plug, the middle left plug, the lower left plug, and the left heating element abdicating hole of the silicon-molybdenum rod in turn, the lower end of the left heating element of the silicon-molybdenum rod is located in the groove, and the lower end of the left heating element abdicating hole of the left extraction release brick is located in the left direction of the left extraction release brick After the bricks are placed, the upper surfaces of the left extraction and release bricks are extended out, and a left connection cable connecting clamp of a silicon-molybdenum rod power supply is fixed; the upper part of the left side of the hearth top wall brick is matched with the right side of the lower part of the left lower plug brick; a left heating element abdicating through hole of the silicon-molybdenum rod is formed in the left heating element abdicating hole brick of the silicon-molybdenum rod, a left lower plug brick silicon-molybdenum rod abdicating hole is formed in the left lower plug brick and at a position corresponding to the left heating element abdicating through hole of the silicon-molybdenum rod, the left lower plug brick silicon-molybdenum rod left heating element abdicating hole is formed in the left lower plug brick and from the top to the bottom of the left lower plug brick, a left middle plug brick silicon-molybdenum rod left heating element abdicating hole is formed in the left middle plug brick and at a position corresponding to the left heating element abdicating hole of the left lower plug brick silicon-molybdenum rod, a left upper plug brick silicon-molybdenum rod abdicating hole is formed in the left upper plug brick and at a position corresponding to the left heating element abdicating hole of the left middle plug brick, the left upper plug brick silicon-molybdenum rod abdicating hole is formed in the left extraction release brick and at two ends of the left heating element abdicating hole corresponding to the left upper plug brick silicon-molybdenum rod The left heating element abdicating hole of the left extraction release brick silicon-molybdenum rod, the left heating element abdicating hole of the left middle plug brick silicon-molybdenum rod and the left heating element abdicating hole of the left upper plug brick silicon-molybdenum rod are the same in shape and are dumbbell-shaped holes, the left heating element abdicating hole of the left extraction release brick silicon-molybdenum rod is a circular hole, the lower end of the left heating element of the silicon-molybdenum rod sequentially passes through the left heating element abdicating hole of the left upper plug brick silicon-molybdenum rod, the left heating element abdicating hole of the left middle plug brick silicon-molybdenum rod, the left heating element abdicating hole of the left lower plug brick silicon-molybdenum rod and the left heating element abdicating hole of the silicon-molybdenum rod from top to bottom and then extends towards the bottom of the hearth in a longitudinal cantilever state and extends into the lower end exploring groove of the left heating element of the silicon-molybdenum rod, the upper end of the left heating element of the silicon-molybdenum rod penetrates through the left extraction release brick from the lower direction of the left extraction release brick at the position corresponding to the silicon-molybdenum rod abdication hole of the left extraction release brick and extends out of the upper surface of the left extraction release brick, and the bottom surface of the left connecting cable connecting clamp of the silicon-molybdenum rod power supply fixed at the upper end of the left heating element of the silicon-molybdenum rod is contacted with the top surface of the left extraction release brick.

In still another specific embodiment of the present invention, a left lower brick-setting step cavity is formed in the middle of the height direction of the left lower brick and around the periphery of the left lower brick, the upper end of the left lower brick is formed into a left lower brick-setting boss, a left lower brick-hearth top wall brick-setting cavity is formed in the lower right side of the left lower brick, the top brick is in block fit with the left lower brick-setting step cavity, and the upper left side surface of the hearth top wall brick is in block fit with the left lower brick-hearth top wall brick-setting cavity; a left middle brick-plugging cavity is formed at the bottom of the left middle brick-plugging and at the position corresponding to the left lower brick-plugging boss, the upper part of the left lower brick-plugging boss extends into the left middle brick-plugging cavity, a left middle brick-plugging cavity is formed in the middle of the left middle brick-plugging, the furnace top brick is in embedding and building fit with the left middle brick-plugging cavity, and a left middle brick-plugging boss is formed at the upper part of the left middle brick-plugging; a left upper plug brick concave cavity is formed at the bottom of the left upper plug brick and at the position corresponding to the left middle plug brick boss, and the upper part of the left middle plug brick boss extends into the left upper plug brick concave cavity; and a left extraction release brick plug sheet which is used for being matched with the upper part of the left upper plug brick in a plugging manner is formed on the downward side of the left extraction release brick.

In a more specific embodiment of the present invention, the right plug mechanism comprises a lower right plug, a middle right plug and an upper right plug, the lower right plug is supported on the upward side of the silicon-molybdenum rod right heating element abdication hole, the middle right plug is superposed on the upper part of the lower right plug, the upper right plug is superposed on the upper part of the middle right plug, the right extraction release brick is in plug fit with the top of the upper right plug at the top of the furnace body, the lower right plug, the middle right plug and the upper right plug are fixed by the furnace top brick, the lower end of the silicon-molybdenum rod right heating element extends towards the bottom of the furnace chamber in a longitudinal cantilever state after passing through the upper right plug, the middle right plug, the lower right plug and the silicon-molybdenum rod right heating element abdication hole in turn and enters the silicon-molybdenum rod right heating element lower end exploring groove, the upper end of the right heating element of the silicon-molybdenum rod penetrates through the right extraction release brick from the lower part of the right extraction release brick, extends out of the upper surface of the right extraction release brick and is fixed with a silicon-molybdenum rod power supply right connecting cable connecting clamp; the upper part of the right side of the hearth top wall brick is matched with the left side of the lower part of the right lower plug brick; a silicon-molybdenum rod right heating element abdicating through hole penetrating through the silicon-molybdenum rod right heating element abdicating hole brick in the thickness direction is formed on the silicon-molybdenum rod right heating element abdicating hole brick, a right lower plug brick silicon-molybdenum rod right heating element abdicating hole penetrating from the top to the bottom of the right lower plug brick is formed on the right lower plug brick and at the position corresponding to the silicon-molybdenum rod abdicating through hole of the silicon-molybdenum rod right heating element, a right middle plug brick silicon-molybdenum rod right heating element abdicating hole penetrating from the top to the bottom of the right middle plug brick is formed on the right middle plug brick and at the position corresponding to the right lower plug brick silicon-molybdenum rod right heating element abdicating hole, a right upper plug brick silicon-molybdenum rod abdicating hole penetrating from the top to the bottom of the right upper plug brick is formed on the right upper plug brick and at the position corresponding to the right middle plug brick silicon-molybdenum rod right heating element abdicating hole, a right upper plug brick silicon-molybdenum rod right heating element abdicating hole penetrating from the top to the bottom of the right upper plug brick is formed on the right extraction release brick and at the two ends of the right upper The positions of the right heating element abdicating holes are respectively provided with a right extraction release brick silicon-molybdenum rod right heating element abdicating hole, a right lower plug brick silicon-molybdenum rod right heating element abdicating hole, a right middle plug brick silicon-molybdenum rod right heating element abdicating hole and a right upper plug brick silicon-molybdenum rod right heating element abdicating hole which are the same in shape and are all dumbbell-shaped holes, the right extraction release brick silicon-molybdenum rod right heating element abdicating hole is a circular hole, the lower end of the silicon-molybdenum rod right heating element sequentially passes through the right upper plug brick silicon-molybdenum rod right heating element abdicating hole, the right middle plug brick silicon-molybdenum rod right heating element abdicating hole, the right lower plug silicon-molybdenum rod right heating element abdicating hole and the silicon-molybdenum rod abdicating through hole from top to bottom, extends towards the bottom of the hearth in a longitudinal cantilever state and extends into the silicon-molybdenum rod right heating element lower end exploring groove, the upper end of the right heating element of the silicon-molybdenum rod penetrates through the right extraction release brick from the lower direction of the right extraction release brick at the position corresponding to the silicon-molybdenum rod abdication hole of the right extraction release brick and extends out of the upper surface of the right extraction release brick, and the bottom surface of the right connecting cable connecting clamp of the silicon-molybdenum rod power supply fixed at the upper end of the right heating element of the silicon-molybdenum rod is contacted with the top surface of the right extraction release brick.

In yet another specific embodiment of the present invention, a right lower brick-plugged step cavity is formed in the middle of the height direction of the right lower brick and around the periphery of the right lower brick, the upper end of the right lower brick is formed into a right lower brick-plugged boss, a right lower brick-plugged hearth top wall brick embedding cavity is formed in the lower left part of the right lower brick, the hearth brick is in block fit with the right lower brick-plugged step cavity, and the upper right side surface of the hearth top wall brick is in block fit with the right lower brick-plugged hearth top wall brick embedding cavity; a right middle brick-plugging cavity is formed at the bottom of the right middle brick-plugging and at the position corresponding to the right lower brick-plugging boss, the upper part of the right lower brick-plugging boss extends into the right middle brick-plugging cavity, a right middle brick-plugging cavity is formed in the middle of the right middle brick-plugging, the furnace top brick is in embedding and building fit with the right middle brick-plugging cavity, and a right middle brick-plugging boss is formed at the upper part of the right middle brick-plugging; a right upper plug brick concave cavity is formed at the bottom of the right upper plug brick and at the position corresponding to the right middle plug brick boss, and the upper part of the right middle plug brick boss extends into the right upper plug brick concave cavity; and a right extraction release brick plug sheet which is used for being matched with the upper part of the right upper plug brick in a plugging manner is formed on the downward side of the right extraction release brick.

In a still more specific embodiment of the present invention, a plurality of furnace temperature zones with different sintering temperatures are separated by furnace temperature zone separation bricks in the length direction of the furnace, and the channel width of the furnace is narrowed at the position corresponding to the furnace temperature zone separation bricks; a hearth brick thermocouple abdicating hole which is penetrated from the top of the hearth brick to the bottom of the hearth brick is formed in the position on the hearth brick and corresponding to the hearth temperature zone, a hearth top wall brick thermocouple abdicating hole is formed in the position on the hearth top wall brick and corresponding to the hearth brick thermocouple abdicating hole, and the hearth top wall brick thermocouple abdicating hole is communicated with the hearth brick thermocouple abdicating hole and is also communicated with the hearth; and a hearth push plate guide rail is arranged at the bottom of the hearth along the length direction of the hearth, and a push plate is arranged on the hearth push plate guide rail in a use state.

The technical scheme provided by the utility model the technical effect lie in: because the two ends of the hearth top wall brick of the structural system of the furnace top brick are respectively supported on the left heating element abdicating hole brick and the right heating element abdicating hole brick of the silicon-molybdenum rod which are inserted into the hearth in opposite states, and the surface of one side of the hearth top wall brick facing upwards is designed into a flat structure, the construction of the furnace top of the hearth is facilitated, the workload is reduced, and the construction difficulty is reduced; because the end parts of the two ends of the hearth top wall brick are respectively arranged on the side, facing upwards, of the opposite ends of the left heating element abdicating hole brick and the right heating element abdicating hole brick of the silicon-molybdenum rod in a covering state, and the lower parts of the left side surface and the right side surface of the hearth top wall brick are respectively matched with the inclined surfaces of the opposite sides of the left heating element abdicating hole brick and the right heating element abdicating hole brick of the silicon-molybdenum rod through the left side surface and the right side surface of the hearth top wall brick, the hearth top wall brick and the left heating element abdicating hole brick and the right heating element abdicating hole brick of the silicon-molybdenum; because the left heating element abdicating hole brick and the right heating element abdicating hole brick of the silicon-molybdenum rod play a reliable supporting role for the top wall brick of the hearth, the stability of the whole structure of the furnace body can be ensured. Furthermore the utility model discloses still have following technological effect at least: firstly, because the left and right brick plugging mechanisms which can be fixed with the furnace top brick in a masonry way and can respectively insert the lower ends of the left and right heating elements of the silicon-molybdenum rod into the furnace chamber direction are adopted, and the left and right extraction release bricks which are respectively matched with the left and right brick plugging mechanisms in a plugging way and can be penetrated by the upper ends of the left and right heating elements of the silicon-molybdenum rod are arranged at the top of the furnace body, when the left and right heating elements of the silicon-molybdenum rod are to be replaced, the left and right extraction release bricks are only required to be upwards moved to take out and replace the left and right heating elements of the silicon-molybdenum rod, thereby being beneficial to obviously reducing the workload and reducing the engineering cost for replacing the silicon-molybdenum rod; secondly, the time for replacing the left heating element and the right heating element of the silicon-molybdenum rod is short, and the efficiency is high, so that the sintering efficiency of the sintering furnace on electronic components, electronic powder materials and the like is improved; thirdly, the initial state of the top of the hearth cannot be changed and the sealing effect cannot be influenced because the left heating element and the right heating element of the silicon-molybdenum rod are replaced only by lifting the left extraction release brick and the right extraction release brick upwards without detaching and moving the furnace top brick; fourthly, because the left heating element and the right heating element of the silicon-molybdenum rod can not be bonded with the left brick plugging mechanism and the right brick plugging mechanism, the replacement is convenient, and the operation intensity of an operator is reduced.

Drawings

Fig. 1 is a schematic view of an embodiment of the present invention.

Fig. 2 is a detailed structure diagram of the hearth top wall brick shown in fig. 1 matched with left and right heating element abdicating hole bricks of a silicon-molybdenum rod.

FIG. 3 is a detailed block diagram of the right heating element and right brick plugging mechanism of the Si-Mo rod shown in FIG. 1.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, should not be interpreted as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1, there is shown a furnace body 1 belonging to the tunnel kiln category and having a length of ten meters or more and several tens of meters or more, the furnace body 1 having a central portion formed with a hearth 11 extending from a front end to a rear end of a housing (i.e., a shell) of the furnace body 1 in a longitudinal direction, the hearth 11 being defined by bottom bricks 12 horizontally built along an inner bottom of the furnace body 1 in the longitudinal direction, wall bricks 13 longitudinally built on the basis of the bottom bricks 12 along inner left and right side walls of the furnace body 1 in the longitudinal direction, and roof bricks 14 horizontally built on the basis of the wall bricks 13 along a top of the furnace body 1 in the longitudinal direction; among the aforementioned ceiling bricks 14, the ceiling brick located at the bottom layer and corresponding to the top of the aforementioned furnace 11 is constituted as a furnace ceiling brick 141, the ceiling brick corresponding to the left side of the furnace ceiling brick 141 is constituted as a silicon molybdenum rod left heating element abdicating hole brick 142, and the ceiling brick corresponding to the right side of the furnace ceiling brick 141 is constituted as a silicon molybdenum rod right heating element abdicating hole brick 143.

Please refer to fig. 2 in combination with fig. 1, which is a technical point of the technical solution provided by the present invention: the upward facing surface of the furnace ceiling brick 141 is flat, i.e. the upward facing side of the furnace ceiling brick 141 forms a plane, and the downward facing side of the furnace ceiling brick 141 forms a furnace ceiling brick chevron-shaped cavity 1411 having a chevron-shaped cross-sectional shape, the right side of the silicon-molybdenum-rod left heating element abdicating hole brick 142 protrudes into the furnace 11, the left side of the silicon-molybdenum-rod right heating element abdicating hole brick 143 protrudes into the furnace 11, the left side of the furnace ceiling brick 141 is supported on the silicon-molybdenum-rod left heating element abdicating hole brick 142, and the right side of the furnace ceiling brick 141 is supported on the silicon-molybdenum-rod right heating element abdicating hole brick 143.

As shown in fig. 2, a furnace wall brick left supporting block fitting cavity 1423 is formed on the side of the left heating element abdicating hole brick 142 facing downward, a furnace wall brick right supporting block fitting cavity 1433 is formed on the side of the right heating element abdicating hole brick 143 facing downward, the furnace wall brick 13 on the left side of the furnace body 1 and corresponding to the furnace wall brick left supporting block fitting cavity 1423 is block fitted to the furnace wall brick left supporting block fitting cavity 1423, and the furnace wall brick 13 on the right side of the furnace body 1 and corresponding to the furnace wall brick right supporting block fitting cavity 1433 is block fitted to the furnace wall brick right supporting block fitting cavity 1433.

As shown in fig. 2, a hearth ceiling tile left supporting step chamber 1412 is formed at a lower left portion of the hearth ceiling tile 141, i.e., at a lower left half portion in the thickness direction of the hearth ceiling tile 141, and a hearth ceiling tile right supporting step chamber 1413 is formed at a lower right portion of the hearth ceiling tile 141, i.e., at a lower right half portion in the thickness direction of the hearth ceiling tile 141, the hearth ceiling tile left supporting step chamber 1412 being in supporting engagement with the left side of the silicon-molybdenum-rod left heating element abdicating hole brick 142, and the hearth ceiling tile right supporting step chamber 1413 being in supporting engagement with the right side of the silicon-molybdenum-rod right heating element abdicating hole brick 143.

Continuing with FIG. 2, a hearth top wall brick left chamfer 1414 is formed on the left side of the aforementioned hearth top wall brick 141 and on the left facing side surface corresponding to the aforementioned hearth top wall brick left support step cavity 1412, and a hearth top wall brick right chamfer 1415 is formed on the right side of the hearth top wall brick 141 and on the right facing side surface corresponding to the hearth top wall brick right support step cavity 1413; a left silicon-molybdenum-rod heating-element-abdicating-hole-brick right slope 1421 is formed on the right side of the left silicon-molybdenum-rod heating-element-abdicating-hole brick 142 and at a position corresponding to the furnace-ceiling-brick left slope 1414, and a right silicon-molybdenum-rod heating-element-abdicating-hole-brick left slope 1431 is formed on the left side of the right silicon-molybdenum-rod heating-element-abdicating-hole brick 143 and at a position corresponding to the furnace-ceiling-brick right slope 1415; the furnace ceiling tile left chamfer 1414 and the silicon molybdenum rod left heating element setback 1421 are opposite in slope and mate with each other, while the furnace ceiling tile right chamfer 1415 and the silicon molybdenum rod right heating element setback 1431 are opposite in slope and mate with each other.

Please refer to fig. 1, the left heating elements 2 of the silicon-molybdenum rods are arranged at intervals in the left length direction of the hearth 11 and at the positions corresponding to the left heating element abdicating hole bricks 142 of the silicon-molybdenum rods, the right heating elements 3 of the silicon-molybdenum rods are arranged at intervals in the right length direction of the hearth 11 and at the positions corresponding to the right heating element abdicating hole bricks 143 of the silicon-molybdenum rods, the left brick plugging mechanisms 4 equal to the number of the left heating elements 2 of the silicon-molybdenum rods are built in the top brick 14 and at the positions corresponding to the upper parts of the left heating element abdicating hole bricks 142 of the silicon-molybdenum rods, the right brick plugging mechanisms 5 equal to the number of the right heating elements 3 of the silicon-molybdenum rods are built in the top brick 14 of the furnace body 1 and at the positions corresponding to the left brick plugging release bricks 6 in the upper parts of the left brick plugging mechanisms 4, and a right extraction release brick 7 which is in plug-pull fit with the upper part of the right brick plugging mechanism 5 is arranged at the top of the furnace body 1 and at a position corresponding to the right brick plugging mechanism 5, the lower end of the silicon-molybdenum rod left heating element 2 passes through the left brick plugging mechanism 4 and extends to the bottom of the hearth 11 in a longitudinal cantilever state, the upper end of the silicon-molybdenum rod left heating element 2 passes through the left extraction release brick 6 from bottom to top and protrudes out of the upper surface of the left extraction release brick 6, the lower end of the silicon-molybdenum rod right heating element 3 passes through the right brick plugging mechanism 5 and extends to the bottom of the hearth 11 in a longitudinal cantilever state, and the upper end of the silicon-molybdenum rod right heating element 3 passes through the right extraction release brick 7 from bottom to top and protrudes out of the upper surface of the right extraction release brick 7.

From the above description and shown in connection with fig. 1, it can be determined that: the number of the left and right extractor release bricks 6 and 7 is equal to the number of the left and right stopper mechanisms 4 and 5, respectively. Specifically, the first number of the left heating elements 2, the left brick plugging mechanisms 4 and the left extraction and release bricks 6 of the silicon-molybdenum rods is equal; the second number of the right heating elements 3, the right stopper mechanisms 5 and the right extractor release bricks 7 of the silicon-molybdenum bars is equal, and the first and second number are equal to each other.

Continuing to refer to fig. 1, a silicon-molybdenum rod left heating element lower end probing groove 121 is formed in the position corresponding to the silicon-molybdenum rod left heating element 2 on the hearth brick 12 at the bottom of the hearth 11, and a silicon-molybdenum rod right heating element lower end probing groove 122 is formed in the position corresponding to the silicon-molybdenum rod right heating element 3; the lower end of the left heating element 2 extends toward the bottom of the furnace 11 in a longitudinal cantilever state after sequentially passing through the left brick mechanism 4 and the left heating element abdicating hole brick 142 of the silicon-molybdenum rod and then extends into the lower end probing groove 121 of the left heating element of the silicon-molybdenum rod, and the lower end of the right heating element 3 extends toward the bottom of the furnace 11 in a longitudinal cantilever state after sequentially passing through the right brick mechanism 5 and the right heating element abdicating hole brick 143 of the silicon-molybdenum rod and then probes into the lower end probing groove 122 of the right heating element of the silicon-molybdenum rod.

Continuing to refer to fig. 1, the left plug brick mechanism 4 comprises a left lower plug brick 41, a left middle plug brick 42 and a left upper plug brick 43, the left lower plug brick 41 is supported on the upward side of the left heating element abdicating hole brick 142 of the silicon-molybdenum rod, the left middle plug brick 42 is stacked on the upper part of the left lower plug brick 41, the left upper plug brick 43 is stacked on the upper part of the left middle plug brick 42, the left extraction release brick 6 is in plug-pull fit with the top of the left upper plug brick 43 at the position of the top of the furnace body 1, the left lower plug brick 41, the left middle plug brick 42 and the left upper plug brick 43 are fixed by the furnace top brick 14, the lower end of the left heating element 2 of the silicon-molybdenum rod is stretched towards the bottom of the furnace 11 in a longitudinal cantilever state after passing through the left upper plug brick 43, the left middle plug brick 42, the left lower plug brick 41 and the left heating element abdicating hole brick 142 of the silicon-molybdenum rod in sequence and is inserted into the lower end exploring groove 121 of the left heating element of the, the upper end of the left heating element 2 of the silicon-molybdenum rod penetrates through the left extraction release brick 6 from the lower part of the left extraction release brick 6, extends out of the upper surface of the left extraction release brick 6 and is fixed with a left connection cable connecting clamp 61 of the silicon-molybdenum rod power supply; the upper left side of the furnace ceiling brick 141 is fitted to the right lower side of the left lower plug brick 41.

Continuing with fig. 1, a left heating element abdicating through hole 1422 is formed through the left heating element abdicating hole brick 142 in the thickness direction, i.e. from the top to the bottom, of the left heating element abdicating silicon-molybdenum rod, a left lower plug-silicon-molybdenum rod abdicating hole 411 is formed through the left lower plug-brick 41 at a position corresponding to the left heating element abdicating through hole 1422, a left lower plug-brick-silicon-molybdenum rod abdicating hole 411 is formed through the top to the bottom of the left lower plug-brick 41 at a position corresponding to the left heating element abdicating through hole 1422, a left middle plug-brick-silicon-molybdenum rod abdicating hole 421 is formed through the top to the bottom of the left middle plug-brick 42 at a position corresponding to the left lower plug-brick-silicon-molybdenum rod abdicating hole 411, a left upper plug-silicon-brick-heating element abdicating hole 431 is formed through the top of the left upper plug-brick 43 and through hole 431 is formed through the left upper plug-brick-silicon-molybdenum rod abdicating through hole 431 at a position corresponding to the left middle plug-brick-molybdenum rod left heating element abdicating, a left extraction release brick silicon-molybdenum rod left heating element abdicating hole 62 is respectively arranged on the left extraction release brick 6 and at the position corresponding to the two ends of the left heating element abdicating hole 431 of the left upper plug brick silicon-molybdenum rod, so that a pair of left extraction release brick silicon-molybdenum rod left heating element abdicating holes 62 are provided, and a pair of corresponding left connecting cable connecting clamps 61 of the silicon-molybdenum rod power supply are also provided. Wherein, the left heating element abdicating through hole 1422 of the silicon-molybdenum rod, the left heating element abdicating hole 411 of the left lower plug brick silicon-molybdenum rod, the left heating element abdicating hole 421 of the left middle plug brick silicon-molybdenum rod and the left heating element abdicating hole 431 of the left upper plug brick silicon-molybdenum rod are the same in shape and are all dumbbell-shaped holes, the left heating element abdicating hole 62 of the left extraction release brick silicon-molybdenum rod is a circular hole, the lower end of the left heating element 2 of the silicon-molybdenum rod sequentially passes through the left heating element abdicating hole 431 of the left upper plug brick silicon-molybdenum rod, the left heating element abdicating hole 421 of the left middle plug brick silicon-molybdenum rod, the left heating element abdicating hole 411 of the left lower plug brick silicon-molybdenum rod and the left heating element abdicating through hole 1422 of the left upper plug brick silicon-molybdenum rod, and extends towards the bottom of the furnace 11 in a longitudinal cantilever state and extends into the probing groove 121 at the lower end of the left heating element abdicating hole corresponding to the left heating element abdicating hole 62 of the left extraction release brick silicon-molybdenum rod The lower side of the extraction release brick 6 passes through the left extraction release brick 6 upward and protrudes out of the upper surface of the left extraction release brick 6, and the bottom surface of the aforementioned silicon molybdenum rod power left connection cable connection clip 61 fixed to the upper end of the aforementioned silicon molybdenum rod left heating element 2 is in contact with the top surface of the left extraction release brick 6.

Continuing with fig. 1, a left lower brick-setting step cavity 412 is formed in the middle of the left lower brick 41 in the height direction and around the periphery of the left lower brick 41, the upper end, i.e., the upper portion, of the left lower brick 41 is formed as a left lower brick-setting boss 413, a left lower brick-hearth top-wall brick-setting cavity 414 is formed in the lower right portion of the left lower brick 41, the above-mentioned ceiling brick 14 is in masonry fit with the left lower brick-setting step cavity 412, that is, the ceiling brick 14 sets and fixes the left lower brick 41 at the position corresponding to the left lower brick-setting step cavity 412, and the left side surface of the upper portion of the above-mentioned hearth top-wall brick 141 is in masonry fit, i.e., masonry fit with the left lower brick-hearth top-wall brick-setting cavity 414; a left middle brick-plugging cavity 422 is formed at the bottom of the left middle brick-plugging 42 and at a position corresponding to the left lower brick-plugging boss 413, the upper part of the left lower brick-plugging boss 413 extends into the left middle brick-plugging cavity 422, a left middle brick-plugging chamber 423 is formed at the middle part of the left middle brick-plugging 42, the furnace top brick 14 is in embedding fit with the left middle brick-plugging chamber 423, and a left middle brick-plugging boss 424 is formed at the upper part of the left middle brick-plugging 42; a left upper brick cavity 432 is formed at the bottom of the left upper brick 43 and at a position corresponding to the left middle brick boss 424, and the upper part of the left middle brick boss 424 is inserted into the left upper brick cavity 432; a left extraction release brick plug 63, also called a left extraction release brick tenon (the same applies hereinafter), is formed on the downward side of the left extraction release brick 6 for being inserted into and pulled out of the upper part of the left upper plug brick 43, and the left extraction release brick plug 63 is inserted into and pulled out of the middle part of the left heating element abdicating hole 431 of the left upper plug brick.

Referring to fig. 3 in combination with fig. 1, the right brick mechanism 5 includes a right lower brick 51, a right middle brick 52 and a right upper brick 53, the right lower brick 51 is supported on the upward side of the silicon-molybdenum rod right heating element abdication hole brick 143, the right middle brick 52 is stacked on the upper portion of the right lower brick 51, the right upper brick 53 is stacked on the upper portion of the right middle brick 52, the right extraction release brick 7 is in insertion and extraction fit with the top of the right upper brick 53 at the position of the top of the furnace body 1, the right lower brick 51, the right middle brick 52 and the right upper brick 53 are fixed by the furnace top brick 14, the lower end of the silicon-molybdenum rod right heating element 3 extends toward the bottom of the furnace 11 in a longitudinal cantilever state after passing through the right upper brick 53, the right middle brick 52, the right lower brick 51 and the silicon-molybdenum rod right heating element abdication hole brick 143 in sequence and enters the silicon-molybdenum rod right heating element abdication groove 122, the upper end of the silicon-molybdenum rod right heating element 3 penetrates through the right extraction release brick 7 from the lower direction of the right extraction release brick 7, extends out of the upper surface of the right extraction release brick 7 and is fixed with a silicon-molybdenum rod power supply right connecting cable connecting clamp 71; the right upper portion of the aforementioned furnace ceiling brick 141 is fitted with the lower left portion of the aforementioned right lower plug brick 51.

Continuing with FIG. 1, a silicon-molybdenum rod right heating element abdicating through hole 1432 penetrating through the thickness direction of the silicon-molybdenum rod right heating element abdicating hole brick 143, i.e., from the top to the bottom, is formed in the silicon-molybdenum rod right heating element abdicating hole brick 143, a right lower plug-brick silicon-molybdenum rod right heating element abdicating hole 511 penetrating from the top to the bottom of the right lower plug-brick 51 is formed in the right lower plug-brick 51 and in a position corresponding to the silicon-molybdenum rod right heating element abdicating hole 1432, a right middle plug-brick silicon-molybdenum rod right heating element abdicating hole 521 penetrating from the top to the bottom of the right middle plug-brick 52 is formed in the right middle plug-brick 52 and in a position corresponding to the right lower plug-brick silicon-molybdenum rod right heating element abdicating hole 511, a right upper plug-brick silicon-molybdenum rod abdicating hole 531 penetrating from the top to the bottom of the right upper plug-brick 53 is formed in the right upper plug-brick 53 and in a position corresponding to the right middle plug-brick silicon-molybdenum rod right heating element abdicating hole 521, a right extraction release brick silicon-molybdenum rod right heating element abdicating hole 72 is respectively arranged on the right extraction release brick 7 and at the position corresponding to the two ends of the right upper plug brick silicon-molybdenum rod right heating element abdicating hole 531, so that a pair of right extraction release brick silicon-molybdenum rod right heating element abdicating holes 72 are provided, and a pair of corresponding silicon-molybdenum rod power right connecting cable connecting clamps 71 are also provided. Wherein, the aforementioned silicon-molybdenum rod right heating element abdicating through hole 1432, right lower plug brick silicon-molybdenum rod right heating element abdicating hole 511, right middle plug brick silicon-molybdenum rod right heating element abdicating hole 521 and right upper plug brick silicon-molybdenum rod right heating element abdicating hole 531 are the same in shape and are all dumbbell-shaped holes, the aforementioned right extraction release brick silicon-molybdenum rod right heating element abdicating hole 72 is a circular hole, the lower end of the aforementioned silicon-molybdenum rod right heating element 3 sequentially passes through the aforementioned right upper plug brick silicon-molybdenum rod right heating element abdicating hole 531, right middle plug brick silicon-molybdenum rod right heating element abdicating hole 521, right lower plug brick silicon-molybdenum rod right heating element abdicating hole 511 and silicon-molybdenum rod right heating element abdicating through hole 1432 from top to bottom in a longitudinal cantilever state and extends toward the bottom of the aforementioned hearth 11 and probes into the aforementioned silicon-molybdenum rod right heating element lower end probing groove 122, the upper end of the silicon-molybdenum rod right heating element 3 is positioned from the right position corresponding to the aforementioned right extraction release brick silicon-molybdenum rod right heating element abdicating hole 72 The lower side of the extraction release brick 7 passes through the right extraction release brick 7 upward and protrudes out of the upper surface of the right extraction release brick 7, and the bottom surface of the aforementioned silicon molybdenum rod power right connection cable connection clip 71 fixed to the upper end of the aforementioned silicon molybdenum rod right heating element 3 is in contact with the top surface of the right extraction release brick 7.

Continuing to refer to fig. 3 and referring to fig. 1, a right lower brick-plugged brick-built step cavity 512 is formed in the middle of the right lower brick 51 in the height direction and around the periphery of the right lower brick 51, the upper end, i.e., the upper portion, of the right lower brick 51 is formed as a right lower brick-plugged boss 513, a right lower brick-plugged hearth-wall brick-built cavity 514 is formed in the lower left portion of the right lower brick 51, the furnace top brick 14 is built and matched with the right lower brick-plugged brick-built step cavity 512, that is, the furnace top brick 14 builds and fixes the right lower brick 51 at the position corresponding to the right lower brick-plugged brick-built step cavity 512, and the right side surface of the upper portion of the furnace hearth-wall brick 141 is built and matched with, i.e., matched with the right lower brick-plugged hearth-wall brick-built cavity 514; a right middle brick-plugging cavity 522 is formed at the bottom of the right middle brick-plugging 52 and at a position corresponding to the right lower brick-plugging boss 513, the upper part of the right lower brick-plugging boss 513 protrudes into the right middle brick-plugging cavity 522, a right middle brick-plugging chamber 523 is formed at the middle part of the right middle brick-plugging 52, the furnace roof brick 14 is embedded and matched with the right middle brick-plugging chamber 523, and a right middle brick-plugging boss 524 is formed at the upper part of the right middle brick-plugging 52; a right upper brick pocket 532 is formed at the bottom of the right upper brick 53 and at a position corresponding to the right middle brick boss 524, and the upper portion of the right middle brick boss 524 protrudes into the right upper brick pocket 532; a right extraction release brick plug 73, also called a right extraction release brick tenon (the same applies below), is formed on the downward side of the right extraction release brick 7 for being inserted into and pulled out of the upper part of the right upper plug brick 53, and the right extraction release brick plug 73 is inserted into and pulled out of the middle part of the right upper plug brick silicon-molybdenum rod abdicating hole 531.

The above-mentioned dumbbell-shaped hole is substantially a hole having a dumbbell-shaped cross-sectional shape, and the concept of the dumbbell-shaped cross-sectional shape is that the hole is formed by one circular hole at each of both ends and an elongated hole located between the two circular holes. Taking the right lower plug brick 51 as an example and shown in fig. 3, the right heating element abdicating hole 511 of the right lower plug brick silicon-molybdenum rod is composed of a pair of right lower plug brick circular holes 5111 and a right lower plug brick rectangular long hole 5112, and the right lower plug brick rectangular long hole 5112 is located between the pair of right lower plug brick circular holes 5111. Since the right middle stopper brick silicon molybdenum rod right heating element abdicating hole 521, the right upper stopper brick silicon molybdenum rod right heating element abdicating hole 531, the left lower stopper brick silicon molybdenum rod left heating element abdicating hole 411, the left middle stopper brick silicon molybdenum rod left heating element abdicating hole 421, and the left upper stopper brick silicon molybdenum rod left heating element abdicating hole 431 are the same as the right lower stopper brick silicon molybdenum rod right heating element abdicating hole 511, the description is omitted.

As can be seen from the schematic illustration of fig. 3, one pair of upper ends of the right silicon-molybdenum rod heating element 3 is thicker, which may be referred to as silicon-molybdenum rod cold end 31, and the silicon-molybdenum rod cold end 31 corresponds to the right extraction release brick silicon-molybdenum rod right heating element abdicating hole 72, the right upper plug brick silicon-molybdenum rod right heating element abdicating hole 531, the right middle plug brick silicon-molybdenum rod right heating element abdicating hole 521, the right lower plug brick silicon-molybdenum rod right heating element abdicating hole 511 and the silicon-molybdenum rod right heating element abdicating through hole 1432; the lower end of the right heating element 3 of the silicon-molybdenum rod is relatively thin and is U-shaped, i.e. connected in a U-shape, and the applicant refers to the aforesaid lower end of the right heating element 3 of the silicon-molybdenum rod as the heating end 32 of the silicon-molybdenum rod, which heating end 32 of the silicon-molybdenum rod is located in the furnace 11. The cold end 31 and the hot end 32 of the Si-Mo rod are called because of the difference in material composition. Since the above-mentioned left heating element 2 of the silicon-molybdenum rod is the same as the right heating element 3 of the silicon-molybdenum rod, the applicant does not give further details.

In this embodiment, the left and right lower plugs 41, 51 and the left and right extraction release bricks 6, 7 are made of alumina hollow sphere material, while the middle left and right upper plugs 42, 52 and the left and right upper plugs 43, 53 are made of mullite light-gathering brick, so as to ensure that the left and right extraction release bricks 6, 7 have good rigidity, while the left and right lower plugs 41, 51 can endure high temperature close to the temperature of the furnace 11, and the middle left and right upper plugs 42, 52 and the left and right upper plugs 43, 53 can embody good heat insulation, so that the temperature of the top of the furnace body 1 is greatly reduced, and accordingly, the energy consumption of the furnace is significantly reduced.

As shown in fig. 1, since the temperatures of different areas of the furnace 11 are different, a plurality of furnace temperature zones with different sintering temperatures are separated by the furnace temperature zone separation bricks 111 in the length direction of the furnace 11, and the channel width of the furnace 11 is narrowed at the position corresponding to the furnace temperature zone separation bricks 111; a ceiling tile thermocouple relief hole 144 penetrating from the top of the ceiling tile 14 to the bottom of the ceiling tile 14 is opened on the ceiling tile 14 and at a position corresponding to the hearth temperature zone, and a hearth ceiling tile thermocouple relief hole 1416 is opened on the hearth ceiling tile 141 and at a position corresponding to the ceiling tile thermocouple relief hole 144, the hearth ceiling tile thermocouple relief hole 1416 communicating with the ceiling tile thermocouple relief hole 144 and also simultaneously communicating with the hearth 11. In use, the thermocouple is inserted into the crown block thermocouple relief hole 144 and extends into the firebox 11 through the hearth crown block thermocouple relief hole 1416, and the temperature in the firebox 11 is sensed by the thermocouple.

As shown in fig. 1, a furnace pusher guide 112 is provided at the bottom of the furnace 11 along the longitudinal direction of the furnace 11, and a pusher 8 is provided on the furnace pusher guide 112 in a use state. When electronic components such as the alumina substrate, the aluminum nitride substrate or the ceramic substrate are sintered, the alumina substrate, the aluminum nitride substrate or the ceramic substrate are sequentially stacked on the pushing plate 8, and under the action of a power device (known in the art and not shown in the figure) for driving the pushing plate 8 to move, the pushing plate 8 carries any one of the substrates to be discharged from a feed port of the hearth 11, such as a feed port at the front end of the hearth 11, to a discharge port of the hearth 11, such as a discharge port at the rear end of the hearth 11, so as to complete sintering. If the electronic powder material is to be sintered, the electronic powder material is put into the sagger 9, the sagger 9 carries the electronic powder material and is placed on the push plate 8, the sagger 9 is driven by the push plate 8, and the specific process is the same as the above.

When the silicon-molybdenum rod left heating element 2 is to be replaced, the left extraction release brick 6 is lifted upwards by an operator in a shutdown state and when the furnace temperature is reduced to normal temperature, namely, when the sintering furnace is in a non-sintering state for products, because the upper end of the silicon-molybdenum rod left heating element 2 is fixed with the silicon-molybdenum rod power supply left connecting cable connecting clamp 61, when the left extraction release brick 6 is lifted to the bottom, the left extraction release brick plug 63 is withdrawn from the middle part of the left upper plug brick silicon-molybdenum rod left heating element abduction hole 431 and then the left extraction release brick 6 is lifted upwards, so that the lower end of the silicon-molybdenum rod left heating element 2 is displaced upwards, and in the process of upward displacement, the silicon-molybdenum rod left heating element lower end detection groove 121, the hearth 11, the silicon-molybdenum rod left heating element abdication through hole 1422, the left lower plug brick silicon-molybdenum rod left heating element abdication hole 411, the left middle plug brick silicon-molybdenum rod abdication hole 421 and the left upper plug silicon-molybdenum rod left heating element abdication hole 431 are sequentially withdrawn, the left heating element 2 of the silicon-molybdenum rod is integrally moved out of the furnace body 1, then the left connecting cable connecting clamp 61 of the silicon-molybdenum rod power supply is loosened and fixed with one end, namely the upper end, of the newly started left heating element 2 of the silicon-molybdenum rod extending out of the upper surface of the left extraction release brick 6, and then the left heating element 2 of the silicon-molybdenum rod is returned to the furnace body 1 according to the reverse process and is in the state shown in the figure 1. Since the right heating element 3 of the silicon-molybdenum rod is replaced in the same way as the left heating element 2 of the silicon-molybdenum rod, the description is not repeated.

Since the left and right heating elements 2 and 3 of the silicon-molybdenum rod are not bonded with the left and right brick plugging mechanisms 4 and 5, respectively, and since the left and right extraction release bricks 6 and 7 are disposed above the left and right brick plugging mechanisms 4 and 5, respectively, the related technical effects of the applicant in the four aspects described in the above technical effect column can be fully reflected.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims (10)

1. A wide-hearth high-temperature sintering furnace comprises a furnace body (1), wherein a hearth (11) penetrating from the front end to the rear end of the furnace body (1) in the length direction is formed in the central position of the furnace body (1), and the hearth (11) is formed by enclosing furnace bottom bricks (12) horizontally built along the inner bottom of the furnace body (1) in the length direction, furnace wall bricks (13) longitudinally built along the left inner wall and the right inner wall of the furnace body (1) in the length direction and based on the furnace bottom bricks (12), and furnace top bricks (14) horizontally built along the top of the furnace body (1) in the length direction and based on the furnace wall bricks (13); among the roof bricks (14), those which are positioned at the bottom and correspond to the top of the furnace (11) are constructed as furnace roof bricks (141), those which correspond to the left side of the furnace roof bricks (141) are constructed as left heating element abdicating hole bricks (142) of silicon molybdenum rods, and those which correspond to the right side of the furnace roof bricks (141) are constructed as right heating element abdicating hole bricks (143) of silicon molybdenum rods; the furnace top wall brick is characterized in that the upward surface of one side of the furnace top wall brick (141) is flat, a furnace top wall brick herringbone concave cavity (1411) with a herringbone cross section shape is formed on the downward side of the furnace top wall brick (141), the right side of the silicon-molybdenum rod left heating element abdicating hole brick (142) extends into the furnace chamber (11), the left side of the silicon-molybdenum rod right heating element abdicating hole brick (143) extends into the furnace chamber (11), the left side of the furnace top wall brick (141) is supported on the silicon-molybdenum rod left heating element abdicating hole brick (142), and the right side of the furnace top wall brick (141) is supported on the silicon-molybdenum rod right heating element abdicating hole brick (143).

2. The wide hearth high temperature sintering furnace according to claim 1, wherein a hearth top wall brick left supporting step chamber (1412) is formed at a left lower portion of said hearth top wall brick (141), and a hearth top wall brick right supporting step chamber (1413) is formed at a right lower portion of said hearth top wall brick (141), the hearth top wall brick left supporting step chamber (1412) being in supporting engagement with a left side of said silicon molybdenum rod left heating element abdicating hole brick (142), and the hearth top wall brick right supporting step chamber (1413) being in supporting engagement with a right side of said silicon molybdenum rod right heating element abdicating hole brick (143).

3. The wide hearth high temperature sintering furnace according to claim 2, characterized in that a hearth top wall brick left inclined surface (1414) is formed at a left side of said hearth top wall brick (141) and at a side surface corresponding to the left facing direction of said hearth top wall brick left supporting step cavity (1412), and a hearth top wall brick right inclined surface (1415) is formed at a right side of said hearth top wall brick (141) and at a side surface corresponding to the right facing direction of said hearth top wall brick right supporting step cavity (1413); a left silicon-molybdenum rod heating element abdicating hole brick right inclined surface (1421) is formed at the right side of the left silicon-molybdenum rod heating element abdicating hole brick (142) and at the position corresponding to the left hearth top wall brick inclined surface (1414), and a right silicon-molybdenum rod heating element abdicating hole brick left inclined surface (1431) is formed at the left side of the right silicon-molybdenum rod heating element abdicating hole brick (143) and at the position corresponding to the right hearth top wall brick inclined surface (1415); the left hearth top wall tile ramp (1414) and the left silicon-molybdenum rod heating element abdication perforated tile ramp (1421) are in opposite directions of inclination and cooperate with each other, and the right hearth top wall tile ramp (1415) and the left silicon-molybdenum rod heating element abdication perforated tile ramp (1431) are opposite of each other and cooperate with each other.

4. The wide-hearth high-temperature sintering furnace according to claim 1, characterized in that silicon-molybdenum rod left heating elements (2) are provided at intervals in the left-side length direction of the hearth (11) and at positions corresponding to the silicon-molybdenum rod left heating element abdication hole bricks (142), while silicon-molybdenum rod right heating elements (3) are provided at intervals in the right-side length direction of the hearth (11) and at positions corresponding to the silicon-molybdenum rod right heating element abdication hole bricks (143), left brick mechanisms (4) equal in number to the silicon-molybdenum rod left heating elements (2) are built in the ceiling bricks (14) and at positions corresponding to the upper side of the silicon-molybdenum rod left heating element abdication hole bricks (142), and right brick mechanisms (5) equal in number to the silicon-molybdenum rod right heating elements (3) are built in the positions corresponding to the upper side of the silicon-molybdenum rod right heating element abdication hole bricks (143), a left extraction release brick (6) which is in plug fit with the upper part of the left plug brick mechanism (4) is arranged at the top of the furnace body (1) and at a position corresponding to the left plug brick mechanism (4), a right extraction release brick (7) which is in plug fit with the upper part of the right plug brick mechanism (5) is arranged at the top of the furnace body (1) and at a position corresponding to the right plug brick mechanism (5), the lower end of the left heating element (2) of the silicon-molybdenum rod passes through the left plug brick mechanism (4) and stretches to the bottom of the hearth (11) in a longitudinal cantilever state, the upper end of the left heating element (2) of the silicon-molybdenum rod passes through the left extraction release brick (6) from bottom to top and protrudes out of the upper surface of the left extraction release brick (6), the lower end of the right heating element (3) of the silicon-molybdenum rod passes through the right plug brick mechanism (5) and stretches to the bottom of the hearth (11) in a longitudinal cantilever state, and the upper end of the silicon-molybdenum rod right heating element (3) passes through the right extraction release brick (7) from bottom to top and extends out of the upper surface of the right extraction release brick (7).

5. The wide hearth high temperature sintering furnace according to claim 4, characterized in that a silicon molybdenum rod left heating element lower end probing groove (121) is opened on the hearth brick (12) at the bottom of the hearth (11) at a position corresponding to the silicon molybdenum rod left heating element (2), and a silicon molybdenum rod right heating element lower end probing groove (122) is opened at a position corresponding to the silicon molybdenum rod right heating element (3); the lower end of the left heating element (2) of the silicon-molybdenum rod sequentially penetrates through the left plug mechanism (4) and the left heating element abdication hole brick (142) of the silicon-molybdenum rod, extends towards the bottom of the hearth (11) in a longitudinal cantilever state and extends into the lower end probing groove (121) of the left heating element of the silicon-molybdenum rod, and the lower end of the right heating element (3) of the silicon-molybdenum rod sequentially penetrates through the right plug mechanism (5) and the right heating element abdication hole brick (143) of the silicon-molybdenum rod, extends towards the bottom of the hearth (11) in a longitudinal cantilever state and extends into the lower end probing groove (122) of the right heating element of the silicon-molybdenum rod.

6. The wide-hearth high-temperature sintering furnace according to claim 4, characterized in that the left plug brick mechanism (4) comprises a left lower plug brick (41), a left middle plug brick (42) and a left upper plug brick (43), the left lower plug brick (41) is supported on the upward facing side of the left heating element abdication hole brick (142), the left middle plug brick (42) is superposed on the upper part of the left lower plug brick (41), the left upper plug brick (43) is superposed on the upper part of the left middle plug brick (42), the left extraction release brick (6) is in plug fit with the top of the left upper plug brick (43) at the position of the top of the furnace body (1), the left lower plug brick (41), the left middle plug brick (42) and the left upper plug brick (43) are fixed by the roof brick (14), the lower end of the left heating element (2) of the silicon rod sequentially passes through the left upper plug brick (43), The left middle plug brick (42), the left lower plug brick (41) and the left heating element abdication hole brick (142) of the silicon-molybdenum rod extend towards the bottom of the hearth (11) in a longitudinal cantilever state and extend into the lower end of the left heating element of the silicon-molybdenum rod to extend into the groove (121), and the upper end of the left heating element (2) of the silicon-molybdenum rod penetrates through the left extraction release brick (6) from the lower direction of the left extraction release brick (6) and extends out of the upper surface of the left extraction release brick (6) and is fixed with a left connection cable connecting clamp (61) of a silicon-molybdenum rod power supply; the upper part of the left side of the hearth top wall brick (141) is matched with the right side of the lower part of the left lower plug brick (41); a left heating element abdicating through hole (1422) of the silicon-molybdenum rod is formed in the left heating element abdicating hole brick (142) and penetrates through the left heating element abdicating hole brick (142) in the thickness direction, a left lower plug silicon-molybdenum rod abdicating hole (411) is formed in the left lower plug brick (41) and at a position corresponding to the left heating element abdicating through hole (1422) of the silicon-molybdenum rod and penetrates from the top to the bottom of the left lower plug brick (41), a left middle plug silicon-molybdenum rod abdicating hole (421) is formed in the left middle plug brick (42) and at a position corresponding to the left lower plug silicon-molybdenum rod abdicating hole (411) and from the top to the bottom of the left middle plug brick (42), a left upper plug silicon-molybdenum rod penetrating from the top to the bottom of the left upper plug (43) is formed in the left upper plug (43) and at a position corresponding to the left middle plug silicon-molybdenum rod abdicating hole (421) of the left heating element abdicating hole brick and a left upper plug (43) is formed in the left middle plug brick A left extraction release brick silicon molybdenum rod left heating element abdicating hole (62) is respectively arranged on the left extraction release brick (6) and at the positions corresponding to the two ends of the left upper plug brick silicon molybdenum rod left heating element abdicating hole (431), wherein the shapes of the silicon molybdenum rod left heating element abdicating through hole (1422), the left lower plug brick silicon molybdenum rod left heating element abdicating hole (411), the left middle plug brick silicon molybdenum rod left heating element abdicating hole (421) and the left upper plug brick silicon molybdenum rod left heating element abdicating hole (431) are the same and are dumbbell-shaped holes, the left extraction release brick silicon molybdenum rod left heating element abdicating hole (62) is a circular hole, the lower end of the silicon molybdenum rod left heating element (2) sequentially penetrates through the left upper plug brick silicon molybdenum rod left heating element abdicating hole (431), the left middle plug brick silicon molybdenum rod left heating element abdicating hole (421) from top to bottom, A left heating element abdicating hole (411) of a left lower plug brick silicon-molybdenum rod and a left heating element abdicating through hole (1422) of the silicon-molybdenum rod extend towards the bottom of the hearth (11) in a longitudinal cantilever state and extend into the lower end of the left heating element of the silicon-molybdenum rod and extend into the groove (121), the upper end of the left heating element of the silicon-molybdenum rod (2) penetrates through the left extraction release brick (6) from the lower direction of the left extraction release brick (6) at the position corresponding to the left heating element abdicating hole (62) of the left extraction release brick and extend out of the upper surface of the left extraction release brick (6), and the bottom surface of the left connecting cable connecting clamp (61) of the silicon-molybdenum rod power supply fixed at the upper end of the left heating element of the silicon-molybdenum rod (2) is contacted with the top surface of the left extraction release brick (6).

7. The wide hearth high temperature sintering furnace according to claim 6, wherein a left lower brick setting step chamber (412) is formed in the middle of the left lower brick (41) in the height direction and around the periphery of the left lower brick (41), the upper end of the left lower brick (41) is formed as a left lower brick setting boss (413), a left lower brick hearth top wall brick setting chamber (414) is formed in the lower right side of the left lower brick (41), the top brick (14) is set up with the left lower brick setting step chamber (412), and the upper left side of the hearth top wall brick (141) is set up with the left lower brick hearth top wall brick setting chamber (414); a left middle brick plugging cavity (422) is formed at the bottom of the left middle brick plugging (42) and at a position corresponding to the left lower brick plugging boss (413), the upper part of the left lower brick plugging boss (413) extends into the left middle brick plugging cavity (422), a left middle brick plugging and assembling cavity (423) is formed in the middle of the left middle brick plugging (42), the furnace top brick (14) is in embedding and assembling fit with the left middle brick plugging and assembling cavity (423), and a left middle brick plugging boss (424) is formed at the upper part of the left middle brick plugging (42); an upper left plug brick cavity (432) is formed at the bottom of the upper left plug brick (43) and at a position corresponding to the left middle plug brick boss (424), and the upper part of the left middle plug brick boss (424) is inserted into the upper left plug brick cavity (432); a left extraction release brick plug sheet (63) which is used for being matched with the upper part of the left upper plug brick (43) in a plugging way is formed on the downward side of the left extraction release brick (6).

8. The wide-hearth high-temperature sintering furnace according to claim 4, characterized in that the right plug brick mechanism (5) comprises a right lower plug brick (51), a right middle plug brick (52) and a right upper plug brick (53), the right lower plug brick (51) is supported on the upward facing side of the silicon molybdenum rod right heating element abdication hole brick (143), the right middle plug brick (52) is superposed on the upper part of the right lower plug brick (51), the right upper plug brick (53) is superposed on the upper part of the right middle plug brick (52), the right extraction release brick (7) is in plug-in fit with the top of the right upper plug brick (53) at a position at the top of the furnace body (1), the right lower plug brick (51), the right middle plug brick (52) and the right upper plug brick (53) are fixed by the roof brick (14), and the lower end of the molybdenum rod right heating element (3) sequentially passes through the right upper plug brick (53), The right middle plug brick (52), the right lower plug brick (51) and the silicon-molybdenum rod right heating element abdication hole brick (143) extend towards the bottom of the hearth (11) in a longitudinal cantilever state and extend into the lower end of the silicon-molybdenum rod right heating element to penetrate into the groove (122), and the upper end of the silicon-molybdenum rod right heating element (3) penetrates through the right extraction release brick (7) in the direction from the lower part of the right extraction release brick (7) and extends out of the upper surface of the right extraction release brick (7) and is fixed with a silicon-molybdenum rod power right connecting cable connecting clamp (71); the upper part of the right side of the hearth top wall brick (141) is matched with the left side of the lower part of the right lower plug brick (51); a silicon-molybdenum rod right heating element abdicating through hole (1432) penetrating through the thickness direction of the silicon-molybdenum rod right heating element abdicating hole brick (143) is formed on the silicon-molybdenum rod right heating element abdicating hole brick (143), a right lower plug silicon-molybdenum rod right heating element abdicating hole (511) penetrating from the top to the bottom of the right lower plug brick (51) is formed on the right lower plug brick (51) and at a position corresponding to the silicon-molybdenum rod right heating element abdicating through hole (1432), a right middle plug silicon-molybdenum rod right heating element abdicating hole (521) penetrating from the top to the bottom of the right middle plug brick (52) is formed on the right middle plug brick (52) and at a position corresponding to the right lower plug silicon-molybdenum rod right heating element abdicating hole (511), a right middle plug silicon-molybdenum rod right heating element abdicating hole (521) penetrating from the top to the bottom of the right middle plug brick (53) is formed on the right upper plug brick (53) and at a position corresponding to the right middle plug silicon-molybdenum rod right heating element abdicating hole (521) and from the right upper plug brick to the right upper plug brick A silicon-molybdenum rod right heating element abdicating hole (72) which is arranged on the right extraction release brick (7) and is respectively provided with a right extraction release brick silicon-molybdenum rod right heating element abdicating hole (72) at the positions corresponding to the two ends of the right upper plug brick silicon-molybdenum rod right heating element abdicating hole (531), wherein the shapes of the silicon-molybdenum rod right heating element abdicating through hole (1432), the right lower plug brick silicon-molybdenum rod right heating element abdicating hole (511), the right middle plug brick silicon-molybdenum rod right heating element abdicating hole (521) and the right upper plug brick silicon-molybdenum rod right heating element abdicating hole (531) are the same and are all dumbbell-shaped holes, the right extraction release brick silicon-molybdenum rod right heating element abdicating hole (72) is a circular hole, and the lower end of the silicon-molybdenum rod right heating element (3) sequentially passes through the right upper plug brick silicon-molybdenum rod right heating element abdicating hole (531), the right middle plug brick silicon-molybdenum rod right heating element abdicating hole (521) and the right heating element abdicating hole (521) from top, A right lower plug brick silicon-molybdenum rod right heating element abdicating hole (511) and a silicon-molybdenum rod right heating element abdicating through hole (1432) extend towards the bottom of the hearth (11) in a longitudinal cantilever state and extend into the silicon-molybdenum rod right heating element lower end inserting groove (122), the upper end of the silicon-molybdenum rod right heating element (3) penetrates through the right extraction release brick (7) from the lower direction of the right extraction release brick (7) at the position corresponding to the right extraction release brick silicon-molybdenum rod right heating element abdicating hole (72) and extends out of the upper surface of the right extraction release brick (7), and the bottom surface of the silicon-molybdenum rod power right connecting cable connecting clamp (71) fixed at the upper end of the silicon-molybdenum rod right heating element (3) is contacted with the top surface of the right extraction release brick (7).

9. The wide hearth high temperature sintering furnace according to claim 8, wherein a right lower brick setting step chamber (512) is formed in the middle of the right lower brick (51) in the height direction and around the periphery of the right lower brick (51), the upper end of the right lower brick (51) is formed as a right lower brick setting boss (513), the lower left part of the right lower brick (51) is formed as a right lower brick hearth top wall brick setting chamber (514), the furnace top brick (14) is set with the right lower brick setting step chamber (512), and the upper right side of the hearth top wall brick (141) is set with the right lower brick hearth top wall brick setting chamber (514); a right middle plug brick cavity (522) is formed at the bottom of the right middle plug brick (52) and at a position corresponding to the right lower plug brick boss (513), the upper part of the right lower plug brick boss (513) extends into the right middle plug brick cavity (522), a right middle plug brick laying and matching cavity (523) is formed in the middle of the right middle plug brick (52), the furnace top brick (14) is in embedded and matching with the right middle plug brick laying and matching cavity (523), and a right middle plug brick boss (524) is formed at the upper part of the right middle plug brick (52); a right upper plug brick cavity (532) is formed at the bottom of the right upper plug brick (53) and at a position corresponding to the right middle plug brick boss (524), and the upper part of the right middle plug brick boss (524) is inserted into the right upper plug brick cavity (532); a right extraction release brick plug sheet (73) which is used for being matched with the upper part of the right upper plug brick (53) in a plugging way is formed on the downward side of the right extraction release brick (7).

10. The wide hearth high-temperature sintering furnace according to claim 1, characterized in that a plurality of hearth temperature zones with different sintering temperatures are partitioned by hearth temperature zone partition bricks (111) in the length direction of the hearth (11), and the channel width of the hearth (11) is narrowed at the position corresponding to the hearth temperature zone partition bricks (111); a furnace top brick thermocouple abdicating hole (144) which penetrates from the top of the furnace top brick (14) to the bottom of the furnace top brick (14) is formed in the position on the furnace top brick (14) and corresponding to the furnace temperature zone, a furnace top wall brick thermocouple abdicating hole (1416) is formed in the position on the furnace top wall brick (141) and corresponding to the furnace top brick thermocouple abdicating hole (144), and the furnace top wall brick thermocouple abdicating hole (1416) is communicated with the furnace top brick thermocouple abdicating hole (144) and is also communicated with the furnace chamber (11); and a hearth push plate guide rail (112) is arranged at the bottom of the hearth (11) along the length direction of the hearth (11), and a push plate (8) is arranged on the hearth push plate guide rail (112) in a use state.

Images