Sagger detection device for kiln

Abstract

The utility model discloses a sagger detection device for a kiln, and belongs to the technical field of electronic kiln auxiliary facilities. Comprising a sagger sealing negative pressure detection mechanism, the sagger sealing negative pressure detection mechanism comprises a negative pressure suction device, a to-be-detected sagger opening covering and sealing device and a to-be-detected sagger fire groove sealing device, and the negative pressure suction device is arranged on a beam frame, is connected with an electric control box and extends to the to-be-detected sagger opening covering and sealing device to be connected with the to-be-detected sagger opening covering and sealing device; the to-be-tested sagger opening covering and sealing device is connected with the beam frame, the to-be-tested sagger opening covering and sealing device covers and seals the opening part of the to-be-tested sagger in the sealing performance testing process of the to-be-tested sagger, and the to-be-tested sagger fire groove sealing device is arranged on the to-be-tested sagger opening covering and sealing device. In the process of testing the sealing performance of the sagger to be tested, the fire groove sealing device of the sagger to be tested seals the fire groove formed in the upper edge of the periphery of the opening part of the sagger to be tested. The device has the advantages of reflecting ideal detection effect and detection efficiency and meeting the requirement of automatic detection.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electronic kiln auxiliary facilities, and particularly relates to a kiln saggar detection device for checking whether a saggar containing electronic powder materials has a leak caused by a crack. BACKGROUND

[0002] When an electronic kiln is used to fire electronic powder materials, the electronic powder materials (raw materials) need to be loaded into a saggar, and the saggar together with the electronic powder materials enters the electronic kiln for firing. After firing, the saggar carries the electronic powder materials (clinkers) out of the hearth of the kiln, and the electronic powder materials in the saggar are crushed at a crushing station (also referred to as a "pounding station"). The reason for crushing is that some ultra-fine electronic powder materials have small particles and large surface areas, and the van der Waals force, electrostatic effect, and other factors cause the particles to interact significantly and easily agglomerate, thereby forming clumps during high-temperature firing. The fired materials clumped in the saggar must be crushed first, otherwise they cannot be poured out. After crushing and pouring out the materials, the saggar is cleaned and loaded again for firing in the kiln, and the cycle is repeated.

[0003] As is known in the industry, a saggar is a turnover container for a kiln and is used repeatedly. Because it is frequently subjected to alternating rapid cooling and rapid heating, over time and with repeated use, the saggar inevitably develops small cracks, and the small cracks gradually expand until the saggar breaks. If a saggar with a small crack cannot be detected and removed in advance, on the one hand, if the saggar explodes or breaks during entry into the kiln for firing, the normal operation of the saggar conveying rollers in the kiln will be affected, and the saggar will scatter and remain in the hearth, causing the kiln to malfunction. Because the saggar breaks, the electronic powder materials previously contained in the saggar cannot be removed from the hearth, resulting in waste and also causing the kiln to malfunction. The removal of the broken saggar from the hearth is very troublesome, affects the firing efficiency of the kiln, and wastes energy, because the removal is performed when the kiln is stopped.

[0004] As is also known in the industry, saggars for kilns are generally opaque, and small cracks usually first occur or form inside, so they are hidden and cannot be detected by the naked eye. The use of a detection device to detect the tightness of the saggar is currently the preferred method in the industry.

[0005] In the disclosed Chinese patent documents, there is technical information related to saggar detection devices for kilns. For example, CN203502362U recommends a "saggar crack detection device". This patent teaches a light transmission detection method, which mainly relies on observing whether light can penetrate the saggar to determine the presence of a crack. However, light transmission detection is often affected by factors such as the material and thickness of the saggar, the depth and location of the crack, and other factors, resulting in inaccurate detection.

[0006] CN219830214U provides a "a sagger sealing detection mechanism", the patent is to buckle two sagger, sealing is implemented at the buckle, and is placed in the water tank to implement detection, the specific detection method can be seen in the specification of the patent 0019 paragraph and 0022 paragraph. The patent can achieve the purpose of detection, but perhaps due to the particularity of sagger structure, for example, there is a sagger fire tank, not only need to use mounting plate, but also need to use air bag, etc., under the work of electric blower, air is introduced to the sagger cavity, if the water tank produces air bubble, it shows that the sagger exists sealing problem. This wet detection by water tank on one hand is troublesome, for example, the two sagger faces need to be fixed by manual operation, on the other hand, it is not conducive to protect the environment of detection place, for example, it is easy to cause the floor to be wet and slippery, on the other hand, the detection efficiency is relatively low, for example, each detection needs to be repeated by manual operation. In addition, after the sagger is detected by the water tank, the sagger which has completed the detection needs to be dried, which takes a long time, and cannot be detected online on the mass production furnace.

[0007] The gas detection is better than the foregoing light transmission detection and the wet detection of water tank bubbling, which can also be found in the disclosed Chinese patent documents, typically, CN220018877U introduces "a sagger detection device", which introduces the detection of sagger air leakage by three embodiments, which can be seen in the specification of the patent 0051, 0055 and 0058. As can be seen from the patent, it can only be used for detecting sagger with relatively consistent upper surface around the sagger, and it is helpless for the detection of sagger with fire tank. And there is no technical inspiration for reference. In addition, the current industry adopts pressure air detection for sagger with fire tank, and the confusion factors mainly manifest as follows: since the width of sagger fire tank, such as ceramic sagger and graphite sagger, is relatively wide, it is generally believed that it is difficult to seal it well during detection, thereby affecting the accuracy of detection. Especially the sagger of ceramic material, the size error of each fire tank (front, rear, left and right) in the width direction is much larger than that of graphite sagger, and the size consistency is very poor, so it is difficult to make rubber seal or sponge seal or other similar seal, and the sealing effect is not ideal and the seal is easy to be worn and affect the sealing effect. Because the seal needs to be covered on the open part of the sagger from top to bottom during the detection of sagger sealing. The foregoing fire tank at least has the following effects: optimizing the distribution of heat field and the flow of gas to ensure the uniformity of material firing and process stability.

[0008] In view of the above prior art, the applicant has made repeated and beneficial design and simulation test, and the test proves that it is feasible, and the technical scheme to be introduced below is generated in this background. Practical new type content

[0009] The utility model discloses a task is at providing a kind of to promote to avoid pressure detection mode to enter the detection of measured kiln, both can be implemented effective overall covering sealing to the upper open area of kiln when detecting, and the fire groove formed on the upper portion of the left and right wall body of kiln can be reliably blocked, and detection efficiency can be also significantly improved, and meet the kiln for the detection device of kiln.

[0010] The utility model discloses a task is thus completed, a kind of kiln for the detection device of kiln, including in the use state setting on beam frame and corresponding to the upper portion of measured kiln one kiln sealing property negative pressure detection mechanism, it is characterized by: the kiln sealing property negative pressure detection mechanism includes a negative pressure suction device, a measured kiln open covering closure device and a measured kiln fire groove sealing device, negative pressure suction device is set on the beam frame, the negative pressure suction device with the electrical control box of the electrical connection and stretch to the measured kiln open covering closure device and measured kiln open covering closure device connection, measured kiln open covering closure device is connected with beam frame in the position below the beam frame, the open part of measured kiln is covered and closed by the measured kiln open covering closure device in the process of carrying out sealing property test to the measured kiln, measured kiln fire groove sealing device is set on the measured kiln open covering closure device and in the use state with the electrical control box electrical connection, the fire groove along the upper portion of four around of measured kiln is sealed by the measured kiln fire groove sealing device in the process of carrying out sealing property test to the measured kiln.

[0011] Further, the beam frame includes a left pipe beam, a middle pipe beam and a right pipe beam for fixing with rack in the use state, the left pipe beam and the middle pipe beam are parallel to each other left and right, the right pipe beam is located at the right side of the middle pipe beam, the left pipe beam, the middle pipe beam and the right pipe beam are each spaced and fixed with the rack in the use state;The negative pressure suction device is arranged between the middle pipe beam and the right pipe beam, and the measured kiln open covering closure device is connected with the left pipe beam and the middle pipe beam in a suspended state together with the measured kiln fire groove sealing device.

[0012] Further, the negative pressure suction device comprises a negative pressure fan provided with a motor electrically connected with the electric control box, the motor is matched with the negative pressure fan and fixed on the fan mounting plate together with the motor, the fan mounting plate is fixed on the vibration column support plate through a pair of front and rear vibration columns, the vibration column support plate is fixed between the middle pipe beam and the upward side of the right pipe beam, one end of the air suction pipe towards the negative pressure fan is matched with the air inlet of the negative pressure fan, and the other end of the air suction pipe is connected with the sagger opening covering and sealing device of the sagger to be tested, one end of the air exhaust pipe is matched with the air outlet of the negative pressure fan, and the other end of the air exhaust pipe extends away from the air exhaust port of the negative pressure fan and is fixed with a dust filter.

[0013] Further, the sagger opening covering and sealing device to be tested comprises a sagger opening sealing pad support plate, a sagger opening sealing pad, a detection interface, a vacuum pressure gauge, a pair of left positioning plate connecting rods and a pair of right positioning plate connecting rods, the sagger opening sealing pad is fixed on the downward side of the sagger opening sealing pad support plate and corresponds to the upper side of the sagger conveying mechanism to be tested, the shape and size of the sagger opening sealing pad support plate are the same as those of the sagger opening sealing pad, the lower end of the detection interface is fixed on the sagger opening sealing pad support plate, the sagger opening sealing pad support plate is communicated with the sagger opening sealing pad air outlet hole on the sagger opening sealing pad, the upper end of the detection interface is connected with the vacuum pressure gauge through an air guide pipe, the vacuum pressure gauge is fixed on the upper end of the vacuum pressure gauge support, the lower end of the vacuum pressure gauge support is fixed on the upward side of the left pipe beam or the middle pipe beam, the lower end of the pair of left positioning plate connecting rods is fixed on the left end of the sagger opening sealing pad support plate, and the upper end of the pair of left positioning plate connecting rods is fixed on the left pipe beam in a suspended manner, the lower end of the pair of right positioning plate connecting rods is fixed on the right end of the sagger opening sealing pad support plate, and the upper end of the pair of right positioning plate connecting rods is fixed on the middle pipe beam in a suspended manner.

[0014] Further, a sagger opening sealing pad support plate air outlet hole is arranged in the middle of the sagger opening sealing pad support plate, a sagger opening sealing pad hole is arranged on the sagger opening sealing pad and corresponds to the position of the sagger opening sealing pad support plate air outlet hole, the lower end of the sagger opening sealing pad hole coincides with the sagger opening sealing pad support plate air outlet hole, one end of the air suction pipe towards the sagger opening covering and sealing device to be tested is fixed on the sagger opening sealing pad support plate corresponding to the position of the sagger opening sealing pad support plate air outlet hole, and the sagger opening fire channel sealing device to be tested is arranged on the sagger opening sealing pad support plate.

[0015] Further, the sagger opening sealing pad is made of an elastomer material, the elastomer material is rubber, and the rubber is natural rubber, nitrile rubber or asbestos rubber.

[0016] Further, the to-be-tested sagger fire groove sealing device comprises a group of fire groove fixed block pressing plate actuating cylinders, a group of fire groove fixed block pressing plates and a group of fire groove blocking sealing sheets, the number of the group of fire groove fixed block pressing plate actuating cylinders is four, and the group of fire groove fixed block pressing plate actuating cylinders are horizontally fixed on the side of the sagger opening covering and sealing pad support plate in the front, rear, left and right directions, and are electrically connected with the electrical control box, the fire groove fixed block pressing plate actuating cylinder columns of the group of fire groove fixed block pressing plate actuating cylinders each protrude from the edge of the side of the sagger opening covering and sealing pad support plate facing outward, the number of the group of fire groove fixed block pressing plates is equal to that of the group of fire groove fixed block pressing plate actuating cylinders, the upper part of each fire groove fixed block pressing plate is fixed to the side of the fire groove fixed block pressing plate actuating cylinder column through the group of fire groove fixed block pressing plate spacers, and the lower part of the group of fire groove fixed block pressing plates and the side of the group of fire groove blocking sealing sheets each form a fire groove blocking sealing sheet fixing seat, the number of the group of fire groove blocking sealing sheets is four, and each fire groove blocking sealing sheet is fixedly attached to the side of the fire groove blocking sealing sheet fixing seat facing inward, and in the state of testing the to-be-tested sagger, the group of fire groove blocking sealing sheets respectively seal the fire grooves formed on the upper side of the to-be-tested sagger.

[0017] Further, the group of fire groove fixed block pressing plate actuating cylinders are air cylinders.

[0018] Further, the group of fire groove blocking sealing sheets are made of an elastomer material, the elastomer material is rubber, and the rubber is natural rubber, nitrile rubber or asbestos rubber.

[0019] The technical effect of the technical scheme provided by the utility model lies in that before the to-be-tested sagger is tested in the negative pressure detection mode, the to-be-tested sagger is lifted by the sagger lifting mechanism which is additionally provided and known, in the state of the opening part of the to-be-tested sagger facing upward, the opening part of the to-be-tested sagger is effectively sealed by the sagger opening covering and sealing device, and the fire groove of the to-be-tested sagger is reliably blocked by the to-be-tested sagger fire groove sealing device, and after the negative pressure suction device is used for suction, whether there is leakage or crack can be judged according to whether the negative pressure in the sagger cavity changes, so that ideal testing effect and testing efficiency can be achieved, and the automatic testing requirement can be met. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an embodiment structure diagram of the utility model;

[0021] Figure 2 It is a structure diagram of the to-be-tested sagger opening covering and sealing device in Figure 1 DETAILED DESCRIPTION

[0022] ​In order to enable the technical essence and beneficial effects of the present application to be more clearly understood, the applicant will now make a detailed description in the form of examples below, but the description of the examples is not a limitation on the technical scheme of the present application, and any equivalent transformation made only in form but not in substance in accordance with the concept of the present application should be regarded as falling within the scope of the technical scheme of the present application.

[0023] In the following description, any directional or positional concepts such as up, down, left, right, front and back are based on the current position of the Figure 1 and thus should not be understood as a special limitation on the technical scheme provided by the present application.

[0024] Please refer to Figure 1 and Figure 2 , which shows a sagger sealing property negative pressure detection mechanism 3 arranged on a beam frame 1 in a use state and corresponding to the upper part of a sagger 2 to be tested, the aforementioned sagger sealing property negative pressure detection mechanism 3 comprises a negative pressure suction device 31, a sagger opening covering and closing device 32 to be tested and a sagger fire groove sealing device 33 to be tested, the negative pressure suction device 31 is arranged on the aforementioned beam frame 1, the negative pressure suction device 31 is electrically connected with the aforementioned electrical control box and extends to the aforementioned sagger opening covering and closing device 32 to be tested, the sagger opening covering and closing device 32 to be tested is connected with the beam frame 1 at a position below the aforementioned beam frame 1, the opening part of the sagger 2 to be tested is covered and closed by the sagger opening covering and closing device 32 to be tested during the sealing test of the aforementioned sagger 2 to be tested, the sagger fire groove sealing device 33 to be tested is arranged on the aforementioned sagger opening covering and closing device 32 to be tested and is electrically connected with the aforementioned electrical control box in a use state, the fire groove 22 along the upper edge of the opening part of the sagger 2 to be tested is sealed by the sagger fire groove sealing device 33 to be tested during the sealing test of the aforementioned sagger 2 to be tested.

[0025] Further, the aforementioned beam frame 1 comprises a left pipe beam 11, a middle pipe beam 12 and a right pipe beam 13 for fixing with a rack in a use state, the left pipe beam 11 and the middle pipe beam 12 are parallel to each other left and right, the right pipe beam 13 is located on the right side of the middle pipe beam 12, the left pipe beam 11, the middle pipe beam 12 and the right pipe beam 13 are each spaced apart and fixed with the aforementioned rack in a use state; the aforementioned negative pressure suction device 31 is arranged between the aforementioned middle pipe beam 12 and the right pipe beam 13, the aforementioned sagger opening covering and closing device 32 to be tested is connected with the aforementioned left pipe beam 11 and the middle pipe beam 12 in a suspended state together with the aforementioned sagger fire groove sealing device 33 to be tested.

[0026] The above-mentioned rack, although not shown in the figure, does not cause confusion to the understanding of those skilled in the art, and it can be determined that the rack is supported on the floor, and the aforementioned left, middle and right pipe beams 11, 12 and 13 are fixed to a pair of front and rear parallel beam bodies of the rack. That is, in the use state, the aforementioned left pipe beam 11, middle pipe beam 12 and right pipe beam 13 are fixed between a pair of front and rear parallel beam bodies of the structural system of the rack not shown in the figure. In the use state, the aforementioned electrical control box is arranged on the rack 1, specifically, it can be arranged on the left side of the rack, or it can be arranged on the right side of the rack or at a reasonable position on other parts of the rack.

[0027] Further, the aforementioned negative pressure suction device 31 comprises a negative pressure fan 311 provided with a motor 3111 electrically connected with the aforementioned electrical control box, the motor 3111 cooperates with the negative pressure fan 311 and is fixed on the fan mounting plate 3112 together with the motor 3111, and the fan mounting plate 3112 is fixed by means of the fan mounting plate screw 31123 and through a pair of damping columns 31121 (also called "damping pads") on the front and back and the damping column supporting plate 31122, and the damping column supporting plate 31122 is fixed between the aforementioned middle pipe beam 12 and the side of the right pipe beam 13 facing upward, the end of the air suction pipe 312 facing the negative pressure fan 311 is matched with the air inlet of the negative pressure fan 311, and the end of the air suction pipe 312 facing the aforementioned open covering and closing device 32 of the test sagger is connected with the open covering and closing device 32 of the test sagger, one end of the exhaust pipe 313 is matched with the air outlet of the negative pressure fan 311, and the other end extends away from the exhaust port of the negative pressure fan 311 and is fixed with a dust filter 3131. The aforementioned dust filter 3131 can also be called an air filter.

[0028] The aforementioned open covering and closing device 32 of the test sagger comprises a sagger opening closing pad supporting plate 321, a sagger opening closing pad 322, a detection interface 323, a vacuum pressure gauge 324, a pair of positioning plate left connecting rods 325 and a pair of positioning plate right connecting rods 326, the sagger opening closing pad 322 is fixed by sticking on the side of the sagger opening closing pad supporting plate 321 facing downward and corresponding to the top of the aforementioned test sagger conveying mechanism 2, the shape and size of the sagger opening closing pad supporting plate 321 are the same as those of the sagger opening closing pad 322, the lower end of the detection interface 323 is fixed with the sagger opening closing pad supporting plate 321, and the sagger opening closing pad supporting plate 321 is provided with a sagger opening closing pad air outlet hole 3221 (not shown in the figure) corresponding to the sagger opening closing pad 322, and the sagger opening closing pad 322 is provided with a sagger opening closing pad air outlet hole 3221 (not shown in the figure) corresponding to the sagger opening closing pad supporting plate 321. Figure 2The upper end of the detection interface 323 is connected with the vacuum pressure gauge 324 through the air guide pipe 3231, the vacuum pressure gauge 324 is fixed on the upper end of the vacuum pressure gauge support 3241, the lower end of the vacuum pressure gauge support 3241 is fixed on the side of the left pipe beam 11 facing upward, the lower end of the pair of positioning plate left connecting rods 325 is fixed on the left end of the saggar open closing pad support plate 321, the upper end of the pair of positioning plate left connecting rods 325 is fixed on the left pipe beam 11 in a suspended manner and is locked by the left connecting rod locking nut 3251, the lower end of the pair of positioning plate right connecting rods 326 is fixed on the right end of the saggar open closing pad support plate 321, and the upper end of the pair of positioning plate right connecting rods 326 is fixed on the middle pipe beam 12 in a suspended manner and is locked by the right connecting rod locking nut 3261.

[0029] The applicant needs to emphasize that: in the present embodiment, although the vacuum pressure gauge support 3241 is arranged on the left pipe beam 11 together with the vacuum pressure gauge 324, it can also be reasonably arranged on the right pipe beam 12, or even on the right pipe beam 13 or the reasonable position of the rack mentioned above after extending the air guide pipe 3231. Therefore, the position change of the vacuum pressure gauge support 3241 cannot be considered as deviating from the technical connotation disclosed in the utility model.

[0030] Further, as shown in the drawing, Figure 2 A saggar open closing pad support plate air outlet hole 3211 is arranged at the central position of the saggar open closing pad support plate 321, a saggar open closing pad hole 3222 is arranged on the saggar open closing pad 322 and corresponds to the position of the saggar open closing pad support plate air outlet hole 3211, the saggar open closing pad hole 3222 coincides with the lower part of the saggar open closing pad support plate air outlet hole 3211, one end of the air suction pipe 312 facing the saggar open closing device 32 to be tested is fixed on the saggar open closing pad support plate 321 corresponding to the position of the saggar open closing pad support plate air outlet hole 3211, and the saggar open closing device 33 to be tested is arranged with the saggar open closing pad support plate 321 as the carrier.

[0031] Further, in the present embodiment, the saggar open closing pad 322 is made of an elastic body material, the elastic body material is rubber, the rubber is natural rubber, and can also be nitrile rubber or asbestos rubber or other equivalent materials.

[0032] Furthermore, the aforementioned test sagger firebox sealing device 33 includes a set of firebox fixing block pressure plate actuating cylinders 331, a set of firebox fixing block pressure plates 332, and a set of firebox sealing plates 333. The set of firebox fixing block pressure plate actuating cylinders 331 consists of four cylinders, one each in the front, back, left, and right positions, corresponding to the cylinder fixing holes 3212 opened on the sagger opening sealing pad 321. Figure 2 The position shown is horizontally fixed on the upward-facing side of the aforementioned sagger opening closed pad support plate 321 and electrically connected to the aforementioned electrical control box. The piston rod 3311 of each of the set of fire groove fixing block pressure plate actuating cylinders 331 protrudes from the edge of the sagger opening closed pad support plate 321 facing outwards. The number of fire groove fixing block pressure plates 332 is equal to the number of fire groove fixing block pressure plate actuating cylinders 331, and the upper part of each fire groove fixing block pressure plate 332 facing the fire groove fixing block pressure plate actuating cylinder 331 is connected by a set of fire groove fixing block pressure plate pads. 3321 is fixed by screw 33211 to the aforementioned fire groove fixing block pressure plate actuation cylinder 3311. The lower part of a set of fire groove fixing block pressure plates 332 and the side facing a set of fire groove sealing plates 333 each form a fire groove sealing plate fixing seat 3322. There are four fire groove sealing plates 333 in a set, and they are respectively pasted and fixed to the inward side of the fire groove sealing plate fixing seat 3322. When the aforementioned test crucible 2 is being tested, the fire groove 22 formed on the front, back, left, right and upper edges of the test crucible 2 is sealed by the fire groove sealing plates 333 respectively.

[0033] In this embodiment, the aforementioned set of fire slot fixing block pressure plate actuation cylinder 331 is a cylinder; the aforementioned set of fire slot sealing sheet 333 is made of an elastomer material, which is rubber; the aforementioned rubber is natural rubber, but it can also be nitrile rubber or asbestos rubber.

[0034] In the actual test, the test sagger 2 is lifted upward by the sagger lifting mechanism (similar to the "sagger lifting device" disclosed in CN112295700A) mentioned above and corresponding to the sagger opening covering and sealing device 32 below the sagger. After the test is completed, when a set of fire slot fixing block pressure plate actuating cylinders 331 reverses their operation and causes the fire slot fixing block pressure plate actuating cylinder column 3311 to extend out of the cylinder body, releasing the sealing and clamping of the fire slot 22, the sagger lifting mechanism descends, allowing the sagger that has completed the test to leave this utility model and be replaced by the next test sagger 2 for testing.

[0035] A typical example of the aforementioned sagger lifting mechanism is the sagger lifting mechanism described in CN203502362U mentioned by the applicant in the background section above. The sagger lifting mechanism, acting as the sagger lifting mechanism, lifts the sagger 2 to be tested upwards, causing the upper opening of the sagger 2 (i.e., the upper opening of the sagger cavity 21) to be tightly pressed against the downward-facing side of the sagger opening sealing pad 322. Thus, the sagger opening sealing pad 322 seals the aforementioned upper opening of the sagger 2 through a covering effect. Simultaneously, under the operation of the aforementioned electrical control box by the online testing personnel, for example by pressing an electrical button, a set of firebox fixing block pressure plate actuating cylinders 331 work synchronously, causing the firebox fixing block pressure plate actuating cylinder column 3311 to move into the cylinder body. This, through the firebox fixing block pressure plate pad 3321, drives a set of firebox fixing block pressure plates 332 to move inwards accordingly. Figure 1 The directional displacement of the test sagger 2 shown is due to the aforementioned set of fire groove sealing plates 333 being fixed to the fire groove fixing block pressure plate pad 3321 at the lower part of the fire groove fixing block pressure plate 332. Therefore, the set of fire groove fixing block pressure plate 332 drives the aforementioned set of fire groove sealing plates 333 to move towards the test sagger 2, thereby sealing the fire groove 22 of the test sagger 2 by the set of fire groove sealing plates 333. Next, under the operation of the electrical control box, the motor 3111 is activated, driving the negative pressure fan 311. During the operation of the negative pressure fan 311, air is drawn from the crucible cavity 21 through the suction pipe 312. This means the air inside the crucible cavity 21 is sequentially discharged to the outside through the crucible opening sealing gasket hole 3222, the crucible opening sealing gasket support plate air outlet 3211, the suction pipe 312, the air inlet of the negative pressure fan 311, the air outlet of the negative pressure fan 311, the exhaust pipe 313, and the dust filter 3131. When the negative pressure inside the crucible cavity 21 reaches the set value of the vacuum pressure gauge 324, the motor 3111 stops operating. The crucible cavity 21 is under pressure. If the crucible has cracks that cause air leakage, the online operator will observe a decrease in the reading of the vacuum pressure gauge 324, indicating that the crucible is unsuitable for further use and should be discarded. Conversely, if the reading remains unchanged, it indicates that the crucible is intact and can be reused. The aforementioned pressure holding time is usually only a few seconds or tens of seconds. After the test is completed, the aforementioned set of fire slot fixing block pressure plate actuation cylinder 331 reverses its operation, causing a set of fire slot sealing plates 333 to release the seal (close) of the fire slot 22. Then, the aforementioned crucible lifting mechanism descends, allowing the tested crucible to leave the crucible opening sealing pad 322, and the next crucible 2 to be tested is replaced. The aforementioned crucible lifting mechanism then lifts the crucible, and this process is repeated continuously until all the required number of test crucibles 2 are tested.

[0036] In summary, the technical scheme provided by the utility model makes up for the defects in the prior art, successfully completes the invention task, and truly realizes the technical effects described in the technical effect column above.

Claims

1. A kiln sagger testing device, comprising a sagger sealing negative pressure testing mechanism (3) disposed on a beam frame (1) in use and corresponding to the upper part of the sagger (2) to be tested, characterized in that: The negative pressure testing mechanism (3) for the sealing of the crucible includes a negative pressure suction device (31), a sealing device (32) for the open opening of the crucible to be tested, and a sealing device (33) for the fire groove of the crucible to be tested. The negative pressure suction device (31) is installed on the beam frame (1). The negative pressure suction device (31) is electrically connected to the electrical control box and extends to connect with the sealing device (32) for the open opening of the crucible to be tested. The sealing device (32) for the open opening of the crucible to be tested is located below the beam frame (1) and is connected to the beam frame (32). 1) Connection: During the sealing test of the test sagger (2), the test sagger opening covering and sealing device (32) covers and seals the open part of the test sagger (2). The test sagger fire groove sealing device (33) is set on the test sagger opening covering and sealing device (32) and is electrically connected to the electrical control box in the use state. During the sealing test of the test sagger (2), the test sagger fire groove sealing device (33) seals the fire groove (22) formed on the upper edge of the open part of the test sagger (2).

2. The kiln sagger detection device according to claim 1, characterized in that: The beam frame (1) includes a left tube beam (11), a middle tube beam (12) and a right tube beam (13) for fixing to the frame in the use state. The left tube beam (11) and the middle tube beam (12) are parallel to each other, and the right tube beam (13) is located to the right of the middle tube beam (12). The left tube beam (11), the middle tube beam (12) and the right tube beam (13) are spaced apart and fixed to the frame in the use state. The negative pressure suction device (31) is arranged between the middle tube beam (12) and the right tube beam (13). The test sagger opening cover sealing device (32) together with the test sagger fire groove sealing device (33) are connected to the left tube beam (11) and the middle tube beam (12) in a suspended state.

3. The kiln sagger detection device according to claim 2, characterized in that: The negative pressure suction device (31) includes a negative pressure fan (311) equipped with a motor (3111) electrically connected to the electrical control box, an intake pipe (312), and an exhaust pipe (313). The motor (3111) cooperates with the negative pressure fan (311) and is fixed to the fan mounting plate (3112) together with the negative pressure fan (3111). The fan mounting plate (3112) is fixed to the vibration damping column support plate (31122) by a pair of vibration damping columns (31121) at the front and rear. Fixed between the middle tube beam (12) and the right tube beam (13) on the upward side, the end of the suction pipe (312) facing the negative pressure fan (311) is connected to the air inlet of the negative pressure fan (311), and the end of the suction pipe (312) facing the open cover sealing device (32) of the test sagger is connected to the open cover sealing device (32) of the test sagger. One end of the exhaust pipe (313) is connected to the air outlet of the negative pressure fan (311), and the other end extends away from the exhaust port of the negative pressure fan (311) and is fixed with a dust filter (3131).

4. The kiln sagger detection device according to claim 3, characterized in that: The test crucible opening covering and sealing device (32) includes a crucible opening sealing pad support plate (321), a crucible opening sealing pad (322), a detection interface (323), a vacuum pressure gauge (324), a pair of positioning plate left connecting rods (325) and a pair of positioning plate right connecting rods (326). The crucible opening sealing pad (322) is glued and fixed to the side of the crucible opening sealing pad support plate (321) facing downward and corresponding to the top of the test crucible conveying mechanism (2). The shape and size of the crucible opening sealing pad support plate (321) are the same as those of the crucible opening sealing pad (322). The lower end of the detection interface (323) is fixed to the crucible opening sealing pad support plate (321), and the crucible opening sealing pad support plate (321) is connected to the crucible opening sealing pad vent (3221) opened on the crucible opening sealing pad (322). The upper end of the detection interface (323) is connected to the vacuum pressure gauge (324) through the air vent (3231). The vacuum pressure gauge (324) is fixed to the upper end of the vacuum pressure gauge bracket (3241), and the lower end of the vacuum pressure gauge bracket (3241) is fixed to the side of the left tube beam (11) or the middle tube beam (12) facing upward. The lower end of the left connecting rod (325) of the pair of positioning plates is fixed to the left end of the sagger opening closed pad plate (321), and the upper end of the left connecting rod (325) of the pair of positioning plates is fixed to the left tube beam (11) in a suspended manner. The lower end of the right connecting rod (326) of the pair of positioning plates is fixed to the right end of the sagger opening closed pad plate (321), and the upper end of the right connecting rod (326) of the pair of positioning plates is fixed to the middle tube beam (12) in a suspended manner.

5. The kiln sagger testing device according to claim 4, characterized in that: A vent hole (3211) is provided at the center of the sagger opening sealing pad (321). A sagger opening sealing pad hole (3222) is provided on the sagger opening sealing pad (322) at a position corresponding to the vent hole (3211). The vent hole (3222) coincides with the lower part of the vent hole (3211). The end of the suction pipe (312) facing the sagger opening covering sealing device (32) is fixed to the sagger opening sealing pad (321) at a position corresponding to the vent hole (3211). The sagger fire groove sealing device (33) is set with the sagger opening sealing pad (321) as the carrier.

6. The kiln sagger testing device according to claim 4 or 5, characterized in that: The sagger opening sealing pad (322) is made of an elastomer material, which is rubber, and the rubber is natural rubber, nitrile rubber or asbestos rubber.

7. The kiln sagger testing device according to claim 5, characterized in that: The test sagger firebox sealing device (33) includes a set of firebox fixing block pressure plate actuating cylinders (331), a set of firebox fixing block pressure plates (332), and a set of firebox sealing plates (333). The set of firebox fixing block pressure plate actuating cylinders (331) consists of four cylinders, one each in the front, back, left, and right positions, horizontally fixed to the upward-facing side of the sagger opening sealing pad (321) and electrically connected to the electrical control box. The cylinder columns (3311) of each set of firebox fixing block pressure plate actuating cylinders (3311) protrude from the edge of the outward-facing side of the sagger opening sealing pad (321). The number of the set of firebox fixing block pressure plates (332) is equal to the number of the set of firebox fixing block pressure plate actuating cylinders (331). The upper part of each fire slot fixing block pressure plate (332) facing the fire slot fixing block pressure plate actuating cylinder (331) is fixed to the fire slot fixing block pressure plate actuating cylinder column (3311) by a set of fire slot fixing block pressure plate pads (3321). The lower part of the set of fire slot fixing block pressure plates (332) and the side facing the set of fire slot sealing plates (333) each form a fire slot sealing plate fixing seat (3322). There are four fire slot sealing plates (333) in a set, and they are respectively pasted and fixed to the side of the fire slot sealing plate fixing seat (3322) facing inward. When the test crucible (2) is being tested, the fire slots (22) formed on the front, back, left and right upper edges of the test crucible (2) are sealed by the set of fire slot sealing plates (333).

8. The kiln sagger testing device according to claim 7, characterized in that: The set of fire slot fixing block pressure plate actuation cylinder (331) is a cylinder.

9. The kiln sagger testing device according to claim 7, characterized in that: The set of fire channel sealing sheets (333) is made of an elastomer material, which is rubber; the rubber is natural rubber, nitrile rubber or asbestos rubber.

Images