CN117570693B - Shuttle kiln of high temperature quick firing - Google Patents
Shuttle kiln of high temperature quick firing Download PDFInfo
- Publication number
- CN117570693B CN117570693B CN202410060227.9A CN202410060227A CN117570693B CN 117570693 B CN117570693 B CN 117570693B CN 202410060227 A CN202410060227 A CN 202410060227A CN 117570693 B CN117570693 B CN 117570693B
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- China
- Prior art keywords
- kiln
- chamber
- kiln chamber
- vault
- car
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- 238000010304 firing Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000010285 flame spraying Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- 230000000630 rising effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002737 fuel gas Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
- F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Furnace Details (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention relates to the field of shuttle kiln equipment, and provides a high-temperature quick-firing shuttle kiln which is used for solving the problem of low heating rate of the existing shuttle kiln and comprises the following steps: kiln chamber with kiln door; the fixed rail is arranged on a bottom plate at the bottom of the kiln chamber; the kiln car is placed on the fixed rail; the gas pipe is downwards arranged along the outer side walls of the two sides of the kiln chamber, penetrates into the kiln chamber from the bottom and then faces the vault; the gas injection pipe is consistent with the arrangement mode of the gas pipe, penetrates into the kiln chamber from the bottom and then faces the vault; the top of the kiln chamber is designed into a double-vault, and heat flow formed after the gas injection pipe and the gas pipe work rises along the side walls of the two sides of the kiln chamber, is converged in the middle through vault drainage and then descends. According to the invention, the vault part at the top of the kiln chamber is arranged into a double vault, and the side bottom flame spraying and the airflow spraying are matched, so that the hot air rises along the side wall of the kiln chamber, converges to the middle along the vault and then descends, the double-circulation hot wave airflow is formed in the kiln chamber, and the temperature rising speed is further improved.
Description
Technical Field
The present disclosure relates to the field of shuttle kiln equipment, and in particular, to a high temperature fast firing shuttle kiln.
Background
The shuttle kiln belongs to intermittent kiln, can meet continuous large-scale production, can be used for small-scale intermittent production, has flexible production mode and time arrangement, and is a thermal equipment for ceramic material and refractory material production.
The shuttle kiln is designed and constructed like a drawer, and a platform for placing raw materials to be heated is a movable kiln car which is mainly powered by adopting a natural gas or coal burning mode. In the process of manufacturing refractory materials, a heating process is required for high-temperature calcination of raw materials, a kiln is mainly provided with burners in a side-spraying flame or bottom-spraying flame arrangement mode by a kiln in a burning heating mode, the heating process in the kiln is started from a region close to the burner part, namely a region close to the inner wall of the kiln, hot gas rises and then gradually sinks after the temperature of the inner wall of the kiln rises, finally, a kiln car arranged in the middle of the kiln is heated to finish heating, the whole process occupies longer time in a production link, and when the kiln needs to be replaced with new materials for calcination, the kiln is in an open state after the kiln car is pulled out, so that a large amount of heat loss in the kiln is caused to reduce the temperature, but simultaneously, in order to avoid high-temperature calcination and simultaneously, the calcined materials are conveniently taken down from the kiln car, the cooling process of the kiln car is necessary, and therefore, a large amount of production time is wasted when the kiln car is heated again when new materials are put on the kiln car to be sent into the kiln for calcination.
Disclosure of Invention
The invention aims to solve the problem of slower heating speed in the heating process of the conventional shuttle kiln, and provides the shuttle kiln capable of being quickly burned at high temperature.
In order to achieve the above object, the present invention provides a shuttle kiln which is quick-fired at high temperature, comprising: kiln chamber with kiln door; a fixed rail mounted on a bottom plate at the bottom of the kiln chamber; the kiln car is placed on the fixed rail, and the kiln car is symmetrically provided with bearing frames; the gas pipes are downwards arranged along the outer side walls of the two sides of the kiln chamber and face the vault after penetrating into the interior from the bottom of the kiln chamber; the gas injection pipe is consistent with the gas pipe in arrangement mode, penetrates into the kiln chamber from the bottom and then faces the vault; communicating pipe cavities are formed in side wall bodies on two sides of the kiln chamber, and ports on two ends of each communicating pipe cavity are respectively close to the kiln door and near the kiln chamber wall body opposite to the kiln door; the contour of the retaining wall is matched with the contour of the kiln chamber, and the retaining wall is movably arranged on the fixed rail and connected with the kiln car and moves along with the movement of the kiln car; the top in the kiln chamber is of a double-vault design, and heat flow formed after the gas injection pipe and the gas pipe work rises along the side walls of the two sides of the kiln chamber, is converged in the middle through vault drainage and then descends.
As a further improvement, the thickness of the retaining wall is controlled to be a thickness which is close to the kiln chamber wall or close to the kiln door and does not cover the port of the communicating pipe cavity.
As a further improvement, a gap for the passage of the descending heat flow is reserved in the middle of the symmetrical arrangement of the bearing frames arranged on the kiln car.
As a further improvement, further comprising: the reinforcing rib frame is embedded and installed at the protruding part in the middle of the double vault of the kiln chamber and consists of a vertical plate and a plurality of transverse plates, wherein the lengths of the transverse plates are sequentially increased from bottom to top, and the transverse plates are vertically and crosswise fixed on the vertical plate.
As a further improvement, further comprising: the hook block is arranged at the bottom of the kiln car; the clamping block is movably arranged in a notch formed in the lower part of the retaining wall; the compression bar transversely penetrates through the clamping block, and a spring I is arranged between the compression bar and the bottom of the notch; the pressing handle is movably arranged on the side wall of the notch and is pressed above the pressing rod; the hook block moves along with the kiln car to be in contact with the clamping block.
As a further improvement, further comprising: the handle is movably arranged at a notch formed in the end part of the kiln car; the jacking blocks are symmetrically and movably arranged at the bottom of the kiln car and close to the notch; the edge angles of the handle are inclined, and the handle is arranged between the two jacking blocks in a swinging way so that the jacking blocks can be propped against the track of the fixed rail.
As a further improvement, further comprising: the unlocking block is arranged on the bottom plate and is opposite to the moving path of the pressing handle, and an inclined surface which is inclined downwards is arranged on the upper part of the unlocking block and is in matched contact with the pressing handle.
As a further improvement, a stabilizing groove which is matched with the handle of the pressing handle in size is formed at the intersection point of the inclined planes on the unlocking block.
As a further improvement, further comprising: a cross guide rail installed at a position of one side of the bottom plate, which is close to the fixed rail; and the movable guide rail frame is movably arranged on the crossed guide rail and is connected with and aligned with the fixed rail.
As a further improvement, further comprising: a check member disposed at the crossing point of the crossing guide rail; and the spring II is arranged below the check piece to keep the check piece in a sprung state.
The invention brings the following effects:
1. according to the invention, the vault part at the top of the kiln chamber is arranged into the double vault, and the side bottom flame spraying and the air spraying are matched, so that hot air is quickly raised along the side wall of the kiln chamber in the heating process and then is converged in the middle along the vault direction, two air flows are converged together and continuously lowered to the middle lower side under the pushing of the follow-up air flow, low-temperature air at the middle part of the kiln chamber is quickly discharged from a kiln car flue, and the double vault exists, so that double-circulation hot wave air flow is formed in the kiln chamber, the heating speed is further accelerated, the heat transfer speed is higher, and the waiting time is saved.
2. When the retaining wall is matched with the communicating pipe cavity for use, a front space and a rear space are formed in the kiln chamber in the process that the retaining wall is pulled out along with the kiln car, hot air in the front half section of the kiln chamber forms negative pressure in the space which is enlarged in the rear half section of the kiln chamber under the movement of the retaining wall, and the hot air in the front half section of the space enters the rear half section of the kiln chamber along the communicating pipe cavity and is stored in a complete enclosed space formed by the retaining wall and the inner wall of the kiln chamber, so that heat loss is reduced, and when new materials are loaded on the kiln car and are sent into the kiln chamber for calcination, the retaining wall pushes the hot air in the rear half section of the space backwards to enter the front half section of the space along the communicating pipe cavity, and then the air which is newly enters the kiln chamber is directly replaced and heated, so that the preheating time is shortened, and part of energy is saved.
3. The reinforcing rib frame provided by the invention can reinforce the protruding part in the middle of the double vault of the kiln chamber, so that the damage caused by cracking and falling of the part due to long-term high temperature inside the kiln chamber is avoided, and the construction quality of the kiln chamber is further improved.
4. The cross guide rail and the movable guide rail frame provided by the invention can be used for conveniently and rapidly replacing kiln cars, so that the kiln cars can be charged more conveniently and rapidly.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic view of the hidden cross guide rail, movable guide rail frame and kiln door of the present invention.
Fig. 3 is a schematic view of the retaining wall of the present invention.
FIG. 4 is a schematic cross-sectional view of a kiln chamber of the invention.
FIG. 5 is a schematic view of the positions of the hook block, the latch and the press handle of the present invention.
Fig. 6 is a schematic view of the hook block, the clamping block, the pressing handle, the spring I and the pressing rod of the present invention.
FIG. 7 is a schematic view of the grip and top piece of the present invention in position.
Fig. 8 is a schematic view of the location of the unlocking block according to the present invention.
Fig. 9 is a schematic diagram of an unlocking block according to the present invention.
Fig. 10 is a schematic view of the cross guide rail, movable rail mount and check member of the present invention.
FIG. 11 is a schematic view of the check and spring II of the present invention in a particular position.
Wherein, the correspondence between the reference numerals and the names of all the components in the drawings is:
1-kiln chamber, 20-bottom plate, 30-bolt, 40-communicating pipe cavity, 2-kiln door, 3-fixed rail, 4-kiln car, 41-bearing frame, 5-gas pipe, 6-gas injection pipe, 7-retaining wall, 70-vault, 8-reinforcing rib frame, 71-notch, 90-hook block, 91-fixture block, 92-press handle, 93-spring I, 94-press bar, 100-notch, 101-handle, 102-top block, 11-unlocking block, 110-steady groove, 12-cross guide rail, 13-movable guide rail frame, 14-check piece, 140-spring II.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
The invention specifically discloses a shuttle kiln for high-temperature quick firing, which is shown in fig. 1-5 and comprises the following components: the kiln chamber 1 with the kiln door 2 is built on a bottom plate 20, the kiln door 2 is closed and fixed through a bolt 30 which is rotatably arranged at the edge of the mouth of the kiln chamber 1, a fixed rail 3 is arranged on the bottom plate 20 at the bottom in the kiln chamber 1, a kiln car 4 is arranged on the fixed rail 3, the kiln car 4 moves along the straight line direction of the fixed rail 3 through pulleys arranged at the bottom, according to the design of the existing kiln car 4, a flue (not shown) which leads to the direction of the bottom plate 20 is also arranged on the kiln car 4, the flue can regulate and control the exhaust smoke quantity, a driving device is additionally arranged at the bottom of the kiln car 4 in a large kiln to enable the kiln car 4 to move more conveniently, the kiln car 4 in the medium and small kiln is pushed manually, the kiln car 4 shown in the embodiment is exemplified by a manual pushing mode, a driving device is not additionally arranged, supporting frames 41 are symmetrically arranged on the kiln car 4, a certain gap is reserved between the supporting frames 41 which are symmetrically arranged on two sides, the supporting frames 41 are mainly used for placing raw materials to be heated, the heating mode is carried out by burning fuel gas, pipelines of a fuel gas pipe 5 are downwards arranged along the outer side walls of two sides of the kiln chamber 1, then penetrate into the interior from the bottom of the kiln chamber 1, finally, a flame spraying nozzle is arranged at the end part, the flame spraying nozzle faces the direction of a vault 70, the gas injection pipe 6 used for increasing the oxygen content in the kiln is consistent according to the arrangement mode of the fuel gas pipe 5, after the pipelines penetrate into the interior from the bottom of the kiln chamber 1, the pipe orifices face the vault 70, and the gas injection pipe 6 and the fuel gas pipe 5 are alternately arranged at intervals;
in order to accelerate the temperature rising speed in the kiln chamber 1, as shown in fig. 4, the top in the kiln chamber 1 is designed as a double-dome 70, the traditional kiln chamber 1 mainly adopts a single-dome 70 or a flat-top design, the heat waves rising from the side walls at two sides of the kiln chamber 1 are mixed with cold air after reaching the top of the kiln chamber 1, the temperature rising speed in the kiln chamber 1 is reduced, the double-dome 70 is designed so that the heat flow formed after the gas injection pipe 6 works together with the gas pipe 5 rises along the side walls at two sides of the kiln chamber 1, the gas flow is sprayed upwards along the side walls of the kiln chamber 1 by the gas injection pipe 6, the heat flow at two sides in the kiln chamber 1 is guided by the arc-shaped dome 70 to finally converge in the middle and begins to fall, the falling heat flow pushes the cold air in the middle of the kiln chamber 1 downwards, the cold air is discharged from the flue at the bottom of the kiln car 4, the ventilation quantity of the discharge flue is reduced after the cold air is discharged, the subsequent heat flow is dispersed at two sides of the kiln chamber 1 by the bottom of the car 4, and the gas injection pipe 6 is pushed again by the gas injection pipe 6 to the double-dome 70, and the heat flow is circulated in the kiln chamber 1 rapidly, and the kiln chamber 1 is heated by the double-chamber 70;
meanwhile, in order to reduce serious heat loss in the kiln chamber 1 after the kiln door 2 is opened, as shown in fig. 3 and 4, communicating pipe cavities 40 are formed in side wall bodies on two sides in the kiln chamber 1, ports on two ends of the communicating pipe cavities 40 are respectively close to the kiln door 2 and near the wall body of the kiln chamber 1 opposite to the kiln door 2, a retaining wall 7 is movably arranged on a fixed rail 3, the profile of the retaining wall 7 is matched with the inner profile of the kiln chamber 1 and is connected with a kiln car 4, the retaining wall 4 can move along with the kiln car 4, the thickness of the retaining wall 7 needs to be controlled to be in a state of being close to the wall body of the kiln chamber 1 or close to the kiln door 2, and the ports of the communicating pipe cavities 40 are not covered by the retaining wall 7 in the process of being pulled out along with the kiln car 4; the purpose of setting up barricade 7 and communicating pipe chamber 40 like this is that barricade 7 cuts apart kiln room 1 and forms two parts space around following kiln car 4 in the removal in-process, the first half of kiln room 1 is the region that is close to kiln door 2 department promptly, this regional hot air forms the negative pressure in the space that makes kiln room 1 second half increase gradually under barricade 7 removal, thereby will be in the first half space hot air along communicating pipe chamber 40 suction kiln room 1 second half space, this partial heat flow is stored in the complete enclosure space that forms by barricade 7 and kiln room 1 inner wall, thereby delay heat loss, and make the cooling rate further reduce, later send new material to kiln car 4 to send into kiln room 1 and move, the in-process extrusion second half space air of removing, make the steam in second half space get into the first half space along communicating pipe chamber 40 again, and then directly replace the heating to newly entering kiln room 1, thereby reduce the preheating time, saving partial energy.
According to the invention, the dome 70 at the top of the kiln chamber 1 is arranged into the double-dome 70, and the side bottom flame spraying and the air spraying are matched, so that hot air is quickly raised along the side wall of the kiln chamber 1 in the heating process and then is converged in the middle along the direction of the dome 70, two air flows are converged together and continuously lowered towards the middle lower part under the pushing of the subsequent air flows, low-temperature air at the middle part of the kiln chamber 1 is quickly discharged from the flue of the kiln car 4, and the double-dome 70 is arranged, so that double-circulation hot wave air flow is formed in the kiln chamber 1, the heating speed is further accelerated, the heat transfer speed is higher, and the waiting time is saved.
In a preferred embodiment, as shown in fig. 4, since the kiln chamber 1 is generally made of a temperature-resistant material such as brick lime, in order to avoid the situation that the protruding part in the middle of the double arch 70 of the kiln chamber 1 cracks and falls at a high temperature of thousands of degrees for a long time, the protruding part in the middle of the double arch 70 of the kiln chamber 1 is embedded and installed with a reinforcing rib frame 8, and the reinforcing rib frame 8 mainly consists of a vertical plate and a plurality of transverse plates which are sequentially increased from bottom to top in length and vertically and crosswise fixed on the vertical plate, so as to strengthen the protruding part and improve the quality of the kiln chamber 1.
In a preferred embodiment, as shown in fig. 5 and 6, in order to facilitate the connection between the retaining wall 7 and the kiln car 4 after detachment, a hook block 90 is fixedly installed at the bottom of the kiln car 4, the hook block 90 is provided with a slant downward protruding portion, a clamping block 91 movably installed in a recess 71 formed at the lower portion of the retaining wall 7 is matched with the hook block, the clamping block 91 is provided with a slant upward protruding portion, a compression bar 94 is transversely installed on the clamping block 91 in a penetrating manner, a spring I93 is arranged between the compression bar 94 and the bottom of the recess 71, the spring I93 is used for keeping the clamping block 91 in a sprung state all the time, after the kiln car 4 collides with the retaining wall 7, the slant downward protruding portion of the hook block 90 is contacted with the slant upward protruding portion of the clamping block 91, and the clamping block 91 is pressed down, the two protruding portions with opposite directions are clamped with each other, in the process that the kiln car 4 is pulled out from the kiln room 1, the retaining wall 7 can be hooked by the hook block 91, the hook block 91 is pressed down so that the clamping block 91 is movably arranged on the side wall 71, and the compression bar 94 is pressed down to be separated from the recess 71, and the hook block 92 is pressed down, so that the kiln car 4 can be conveniently replaced.
In a preferred embodiment, as shown in fig. 7, in order to prevent the kiln car 4 from moving in a loading state to maintain a necessary standing state after being pulled out, a handle 101 is rotatably installed at a notch 100 formed at the end of the kiln car 4, two top blocks 102 of a top block 102 are symmetrically and slidably installed at the bottom of the kiln car 4 and are close to the notch 100, the edge angles of the handle 101 are inclined, the handle 101 with the inclined edges of the edges can conveniently slide into the middle of the two top blocks 102, when the kiln car 4 needs to be braked, the handle 101 can be swung downwards to be clamped between the two top blocks 102, the two top blocks 102 can be mutually separated and abutted against a track of a fixed rail 3 along with the clamping of the handle 101, and the end surfaces of the top blocks 102 contacted with the track are friction surfaces with rough surfaces, so that the kiln car 4 cannot easily displace.
In a preferred embodiment, as shown in fig. 8 and 9, for conveniently pressing the pressing handle 92, an unlocking block 11 is additionally arranged on the bottom plate 20, the unlocking block 11 is installed on the bottom plate 20 and is opposite to the moving path of the pressing handle 92, an inclined downward slope is arranged at the upper part of the unlocking block 11, the pressing handle 92 is contacted with the inclined plane of the unlocking block 11 in the process that the retaining wall 7 is pulled out, then the pressing handle 92 gradually presses the pressing rod 94 along the inclined plane along with the continuous movement of the retaining wall 7, finally, the clamping block 91 is separated from the hook block 90, the pressing rod 94 does not need to be manually pressed down, meanwhile, in order to avoid the pressing handle 92 from being back along the inclined plane of the unlocking block 11 due to the restoring elasticity of the spring I93, a stabilizing groove 110 which is matched with the size of the pressing handle 92 is formed at the intersection point of the inclined plane of the unlocking block 11, and the handle of the pressing handle 92 can not be easily slid into the stabilizing groove 110 until the pressing handle 92 is separated from the stabilizing groove 110 after the kiln car 4 is collided with the retaining wall 7 again.
In a preferred embodiment, as shown in fig. 10 and 11, in order to accelerate the material exchange time of the kiln car 4, a cross guide rail 12 is fixedly installed at a position, close to the fixed rail 3, on one side of the bottom plate 20, the cross guide rail 12 comprises a straight guide rail for guiding the kiln car 4 to slide into a route of the fixed rail 3 and a transverse guide rail for guiding the kiln car 4 to be transversely pushed away after being pulled out of the kiln chamber 1, a movable part for guiding the kiln car 4 to be transversely pushed away after being pulled out of the kiln chamber 1 is movably arranged on the cross guide rail 12 and is in connection with the movable guide rail 13 on a line which is pushed out of the kiln chamber 1 and pulled out of the kiln chamber 1 and is transversely pushed away again, and then the kiln car 4 is transversely pushed onto another laid track, so that the movable guide rail 13 is pushed back after the kiln car 4 is separated, and the new kiln car 4 is moved from the movable guide rail 13 and then enters the kiln chamber 1, and the time for unloading is further improved in the unloading process; meanwhile, in order to avoid the problem that the movable guide rail frame 13 moves back along with the kiln car 4 and is not aligned with the fixed rail 3 in the process of pulling out and transferring the kiln car 4 from the kiln room 1 to the movable guide rail frame 13, a check piece 14 is arranged at the intersection point of the crossed guide rail 12, a notch is formed at the position of the straight-direction and transverse-direction intersection point of the crossed guide rail 12, the check piece 14 is movably arranged at the notch, the movable guide rail frame 13 is arranged along the direction of the crossed guide rail 12 and moves along the guide rail, a spring II 140 is arranged below the check piece 14, the check piece 14 keeps a sprung state through the spring II 140, the check piece 14 is directly pressed through the movable guide rail frame 13 in the process of moving forward to be aligned with the fixed rail 3, and the check piece 14 can not be blocked to move back when the movable guide rail frame 13 moves back.
The foregoing examples have shown only the preferred embodiments of the invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that modifications, improvements and substitutions can be made by those skilled in the art without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A high temperature fast firing shuttle kiln comprising: a kiln chamber (1) with a kiln door (2); a fixed rail (3) which is arranged on a bottom plate (20) at the inner bottom of the kiln chamber (1); a kiln car (4) is placed on the fixed rail (3), and bearing frames (41) are symmetrically placed on the kiln car (4); the gas pipes (5) are downwards arranged along the outer side walls of the two sides of the kiln chamber (1) and face the vault (70) after penetrating into the interior from the bottom of the kiln chamber (1); the gas injection pipe (6) is consistent with the gas pipe (5) in arrangement mode, penetrates into the kiln chamber (1) from the bottom and then faces the vault (70);
characterized by further comprising: a communicating pipe cavity (40) is formed in the side wall bodies at two sides in the kiln chamber (1), and ports at two ends of the communicating pipe cavity (40) are respectively close to the kiln door (2) and the wall body of the kiln chamber (1) opposite to the kiln door (2); the retaining wall (7) is matched with the inner contour of the kiln chamber (1), is movably arranged on the fixed rail (3) and is connected with the kiln car (4), and moves along with the movement of the kiln car (4); the top in the kiln chamber (1) is designed as a double-vault (70), and heat flow formed after the gas injection pipe (6) and the gas pipe (5) work rises along the side walls at two sides of the kiln chamber (1), is guided and converged in the middle through the vault (70), and then descends; the descending heat flow pushes cold air in the middle of the kiln chamber (1) downwards, the cold air passes through the gaps between two groups of supporting frames (41) on the kiln car (4) in a descending way, and finally is discharged from a flue at the bottom of the kiln car (4), after the cold air is discharged, the ventilation quantity of the discharge flue is reduced, the subsequent heat flow is dispersed to two sides in the kiln chamber (1) at the bottom of the kiln car (4), and the heat flow is pushed to the vault (70) again by the aid of the gas injection pipe (6), so that double-circulation heating in the kiln chamber (1) is formed by the aid of the double vaults (70); dividing the kiln chamber (1) into a front space and a rear space in the process of moving the retaining wall (7) along with the kiln car (4), wherein the front half section of the kiln chamber (1) is a region close to the kiln door (2), hot air in the region forms negative pressure in the space of the rear half section of the kiln chamber (1) which is gradually increased under the movement of the retaining wall (7), so that the hot air in the space of the front half section is sucked into the space of the rear half section of the kiln chamber (1) along a communicating pipe cavity (40), and the hot air is stored in a complete closed space formed by the retaining wall (7) and the inner wall of the kiln chamber (1); and then, when the new material is loaded into the kiln car (4) and is sent into the kiln chamber (1) for calcination, the retaining wall (7) is pushed to move, and air in the space of the second half section is extruded in the moving process, so that hot air in the space of the second half section is caused to enter the space of the first half section along the communicating pipe cavity (40), and then, the air newly entering the kiln chamber (1) is directly replaced and heated.
2. The high-temperature rapid-firing shuttle kiln according to claim 1, wherein the thickness of the retaining wall (7) is controlled so as not to cover the port of the communicating pipe cavity (40) when the retaining wall is tightly attached to the wall of the kiln chamber (1) or is close to the kiln door (2).
3. A high temperature rapid-firing shuttle kiln according to claim 1, characterized in that the symmetrically arranged intermediate of the loading ledges (41) mounted on the kiln car (4) leaves a gap for the passage of the descending heat flow.
4. A high temperature rapid fire shuttle kiln according to claim 2, further comprising: the reinforcing rib frame (8) is embedded in a protruding part arranged in the middle of the double vault (70) of the kiln chamber (1) and is composed of a vertical plate and a plurality of transverse plates which are sequentially increased from bottom to top in length and are vertically and crosswise fixed on the vertical plate.
5. The high temperature rapid-fire shuttle kiln according to claim 4, further comprising: the hook block (90) is arranged at the bottom of the kiln car (4); the clamping block (91) is movably arranged in a notch (71) formed in the lower part of the retaining wall (7); the compression bar (94) transversely penetrates through the clamping block (91), and a spring I (93) is arranged between the compression bar (94) and the bottom of the notch (71); a pressing handle (92) movably arranged on the side wall of the notch (71) and pressed above the pressing rod (94); the hook block (90) moves along with the kiln car (4) to be in contact with the clamping block (91).
6. The high temperature rapid-fire shuttle kiln according to claim 5, further comprising: the handle (101) is movably arranged at a notch (100) formed in the end part of the kiln car (4); the top block (102) is symmetrically and movably arranged at the bottom of the kiln car (4) and is close to the notch (100); the edge angles of the handle (101) are inclined, and the handle (101) is arranged between the two jacking blocks (102) in a swinging mode, so that the jacking blocks (102) can be abutted against the track of the fixed rail (3).
7. The high temperature rapid-fire shuttle kiln according to claim 6, further comprising: the unlocking block (11) is arranged on the bottom plate (20) and is opposite to the moving path of the pressing handle (92), and an inclined surface which is inclined downwards is arranged at the upper part of the unlocking block (11) and is in matched contact with the pressing handle (92).
8. The high-temperature quick-firing shuttle kiln according to claim 7, wherein a stabilizing groove (110) which is matched with the handle size of the press handle (92) is formed at the intersection point of the inclined planes on the unlocking block (11).
9. A high temperature rapid fire shuttle kiln according to any of claims 1 to 8, further comprising: a cross guide rail (12) installed at one side of the bottom plate (20) near the fixed rail (3); and a movable guide rail frame (13) movably arranged on the crossed guide rail (12) and aligned with the fixed rail (3).
10. The high temperature rapid-fire shuttle kiln according to claim 9, further comprising: a check (14) disposed at the intersection of the intersecting guide rails (12); and a spring II (140) arranged below the check member (14) to keep the check member in a sprung state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410060227.9A CN117570693B (en) | 2024-01-16 | 2024-01-16 | Shuttle kiln of high temperature quick firing |
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| CN202410060227.9A CN117570693B (en) | 2024-01-16 | 2024-01-16 | Shuttle kiln of high temperature quick firing |
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| CN117570693B true CN117570693B (en) | 2024-03-15 |
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| KR20150069491A (en) * | 2013-12-13 | 2015-06-23 | 박재원 | continuity, Circulation, tunnel kiln ceramics finished product automation system |
| CN104792159A (en) * | 2015-04-29 | 2015-07-22 | 长兴震铭耐火材料有限公司 | Coal gangue tunnel kiln for producing refractory materials |
| CN107588662A (en) * | 2017-10-27 | 2018-01-16 | 宁波恒普真空技术有限公司 | A kind of vacuum degreasing fritting furnace |
| CN212673842U (en) * | 2020-04-16 | 2021-03-09 | 极晨智道信息技术(北京)有限公司 | Inner-layer vault of split roller kiln |
| CN215930580U (en) * | 2021-05-11 | 2022-03-01 | 凤台县天宝建材有限责任公司 | Fixed efficient energy-saving tunnel kiln |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5879629B2 (en) * | 2011-03-18 | 2016-03-08 | 日本碍子株式会社 | Tunnel kiln for firing ceramic porous bodies |
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2024
- 2024-01-16 CN CN202410060227.9A patent/CN117570693B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150069491A (en) * | 2013-12-13 | 2015-06-23 | 박재원 | continuity, Circulation, tunnel kiln ceramics finished product automation system |
| CN104792159A (en) * | 2015-04-29 | 2015-07-22 | 长兴震铭耐火材料有限公司 | Coal gangue tunnel kiln for producing refractory materials |
| CN107588662A (en) * | 2017-10-27 | 2018-01-16 | 宁波恒普真空技术有限公司 | A kind of vacuum degreasing fritting furnace |
| CN212673842U (en) * | 2020-04-16 | 2021-03-09 | 极晨智道信息技术(北京)有限公司 | Inner-layer vault of split roller kiln |
| CN215930580U (en) * | 2021-05-11 | 2022-03-01 | 凤台县天宝建材有限责任公司 | Fixed efficient energy-saving tunnel kiln |
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| Publication number | Publication date |
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| CN117570693A (en) | 2024-02-20 |
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