CN113091455A - Automatic discharging system and discharging method for roller kiln saggar - Google Patents

Abstract

The invention discloses an automatic discharging system and an automatic discharging method for a roller kiln sagger. The conveying device comprises a longitudinal conveying roller way, a transverse conveying roller way and a turning conveying roller way. The automatic leveling device is arranged on two sides of the longitudinal conveying roller way and is positioned at the upstream of the longitudinal conveying roller way. The automatic rotary discharging device is arranged at the downstream of the longitudinal conveying roller way and comprises a rotary automatic clamping mechanism, a rotary driving mechanism, a rotation angle detection mechanism and the like. The system has the advantages of simple structure, quick unloading and low sagger loss rate. The system can simultaneously realize the turnover discharge of materials in a plurality of saggars in a single row, greatly improves the production efficiency and reduces the production cost.

Description

Automatic discharging system and discharging method for roller kiln saggar

Technical Field

The invention relates to roller kiln sagger discharging equipment, in particular to an automatic discharging system and an automatic discharging method for a roller kiln sagger, and belongs to the technical field of roller kiln production and material conveying.

Background

The roller kiln is a high-temperature kiln for static calcination. Roller kilns are commonly used for calcining powdered and granular materials such as battery materials, magnetic materials, wear-resistant materials, rare earths, ceramics, catalysts, and the like. When the material is required to keep the original shape unchanged or cannot move greatly during the calcining and sintering processes, the material is loaded into kiln furniture for calcining. Sagger is also called crucible or burning boat, and is a common kiln tool for loading powder and particle materials. The sagger is generally recycled, after calcination is completed, the sagger and materials are conveyed out of a kiln body through a roller way, then the materials are discharged, the empty sagger is cleaned, the empty sagger is conveyed back to a kiln inlet end from a return line to continuously load the materials to be calcined, and therefore a calcination cycle is completed. The sagger for roller kilns is mostly in the shape of a square flat box and is made of ceramics, corundum, metal and the like. In order to improve the efficiency of the calcining kiln, the large roller kiln is arranged into a row of structures capable of accommodating a plurality of saggars in the width direction.

The material calcined by the roller kiln and the saggar still keep high temperature after being taken out of the kiln. The calcined material and saggar are cooled in the cooling area of the kiln body, but still have a residual temperature of 150 ℃ to 200 ℃. When the calcined particles and powder are unloaded, the improper treatment can easily cause dust emission and environmental pollution. In addition, for some materials with higher requirements, impurity pollution cannot be introduced in the discharging process. These factors bring certain difficulties to the roller kiln discharge. The manual unloading labor intensity of the roller kiln is high, the temperature of the operation environment is high, the operation dust is large, occupational health risks exist, impurities are easy to introduce, and the like are gradually eliminated. And the saggar is grasped by a manipulator to be turned and unloaded, so that the manufacturing cost is higher, the operation environment is difficult to seal, and dust pollution is easily caused. The development of an automatic closed type discharging device is a demand for technical development and social development.

The first prior art is as follows: the vacuum tube absorbs the powder. CN102241395A discloses a "cooling device for powder fired in a sagger". According to the scheme, the suction nozzle with the small cross section is used for taking materials in the saggar, and when the calcined materials are agglomerated and the agglomeration degree is larger than the cross section of the suction pipe, the suction is difficult. And the means for driving the saggar and the suction nozzle to move horizontally and vertically relative to each other are complicated.

The second prior art is: and (4) tipping and discharging. CN209558904U discloses "an automatic discharging and turning device for sagger". The device relies on fixed stop and stop gear to restrain the casket-like bowl of upset and is unlikely to drop, and the device can only be applicable to single casket-like bowl upset and unload. And the device does not carry out the centre gripping to the sagger at the upset process, and the fixed stop can't block completely when the sagger is because of some position defect or size deviation great, has the risk that the sagger drops.

The prior art is three: and (4) tipping and discharging. CN103512368B discloses an automatic sagger pouring device for an electronic powder material production line. The device is provided with a sagger clamping mechanism driven by a cylinder, and the device is only suitable for clamping one sagger at a time to overturn and unload. And when the sagger shape and position size deviation is large, the upper edge of the sagger is not accurately limited by the pressing strip or even cannot realize the limiting function.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an automatic discharging system and an automatic discharging method for a roller kiln sagger. Firstly, the single-row saggars which come out from the roller kiln and are not arranged in an orderly manner are pushed to be flat from the transverse direction through the automatic leveling device, and the single-row saggars are ensured to be wholly positioned in the receivable width range of the automatic rotary discharging device. And then conveying the saggars to an automatic rotary unloading device by taking the saggars as a row through a longitudinal conveying roller way for unloading treatment. When the automatic rotary discharging device rotates to a vertical position of 90 degrees from a horizontal position of 0 degrees, a hollow square box body (a square or a cuboid hollow box structure) structure formed by the rotary automatic clamping mechanism and the rotary support changes in shape under the action of self gravity and the action of gravity of a single row of saggars filled with materials (double gravity action) (the square or the cuboid structure is changed into an inclined hexahedron structure, the hexahedron has a pair of side surfaces, the rectangle is changed into the parallelogram, and the distance between the pair of side surfaces is reduced so as to clamp the single row of saggars), so that the saggars are clamped; when the automatic rotary discharging device rotates from vertical 90 degrees to horizontal position of 180 degrees, the rotary automatic clamping mechanism and the rotary bracket still keep a clamping state; when the automatic rotary discharging device is in a 180-degree position, the materials in the saggar are basically discharged, and then the gas blowing device blows out gas to blow off the residual materials in the saggar completely. When the automatic rotary discharging device returns from the 180-degree horizontal position to the vertical 90-degree position, the single-row saggars are still in a tightly clamped state. When the automatic rotary discharging device returns from vertical 90 degrees to 0-degree horizontal position, the hollow square box body (square or cuboid hollow box structure) structure formed by the rotary automatic clamping mechanism and the rotary support recovers to an initial state under the action of self gravity and the action of gravity (double gravity action) of the single-emptying sagger, and then the sagger is loosened to be clamped. The unloaded single-row empty sagger enters a sagger return line (return conveying roller way) through a transverse conveying roller way and a bent conveying roller way, and the sagger is returned to the kiln end to prepare for next charging.

In the present invention, the "longitudinal direction" refers to the length direction of the roller kiln, i.e. the running direction of the saggar in the roller kiln and on the longitudinal conveying roller, and the "transverse direction" and the "longitudinal direction" are perpendicular to each other (refer to the level parallel to the ground) in the same horizontal plane. The overturning refers to overturning around a horizontal shaft (a rotating shaft) from the side close to the longitudinal conveying roller way to the side far away from the longitudinal conveying roller way. The total flip angle is about 180 deg. (preferably 170 deg.).

In the present invention, the "upstream and downstream" means that the direction in which the saggars are conveyed is "upstream" and the direction in which the saggars are conveyed is "downstream", depending on the moving direction of the saggars.

In the present invention, the "front end and the tail end" refer to that the end close to the sagger is conveyed as the "front end", the end close to the sagger is conveyed as the "tail end", and both the front end and the tail end are the most end positions, according to the moving direction of the sagger.

In the present invention, when "both sides, inside and outside" of the roller conveyor are described, "both sides" refer to both ends of a shaft rod of a roller shaft of the conveyor, and "inside" refers to two roller conveyors which intersect perpendicularly, and according to the conveying direction of the saggar, the side where the latter roller conveyor is connected to the former roller conveyor is the inside, and vice versa.

In the invention, the conveying device refers to a conveying roller way formed by a plurality of rollers which are distributed, and the respective lengths and conveying directions of the rollers are designed according to the actual working condition requirements.

In the present invention, the "up and down" means that the upper side in the vertical direction perpendicular to the horizontal plane is "up", and the reverse is "down".

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

according to a first embodiment of the invention, an automatic discharging system for a sagger of a roller kiln is provided.

The utility model provides a roller kilns sagger automatic discharge system, this system includes: conveying device, automatic leveling device and autogiration discharge apparatus. The conveying device comprises a first longitudinal conveying roller way, a second longitudinal conveying roller way and a transverse conveying roller way. The second longitudinal conveying roller way is arranged at the downstream of the first longitudinal conveying roller way, and the front end of the second longitudinal conveying roller way is connected with the tail end of the first longitudinal conveying roller way. The transverse conveying roller way is arranged at the downstream of the second longitudinal conveying roller way, and the tail end of the second longitudinal conveying roller way is connected with the inner side of the front end of the transverse conveying roller way. The automatic leveling device is arranged on the side part of the first longitudinal conveying roller way. The automatic rotary discharging device is arranged at the downstream of the second longitudinal conveying roller way.

Preferably, the automatic leveling device comprises a first leveling mechanism, a second leveling mechanism and a leveling photoelectric switch. The first leveling mechanism and the second leveling mechanism are symmetrically arranged on two sides of the first longitudinal conveying roller way. The leveling photoelectric switch is arranged on the side part of the first longitudinal roller conveyor and is positioned above the first longitudinal roller conveyor.

Preferably, the first leveling mechanism includes a first cylinder and a first push rod. The cylinder body of the first air cylinder is fixed on a cross beam on one side of the first longitudinal conveying roller way; a piston rod of the first air cylinder is vertically connected with a first push rod; the axial direction of the first push rod is perpendicular to the axial direction of the roller way of the first longitudinal conveying roller way.

Preferably, the second leveling mechanism comprises a second cylinder and a second push rod; the cylinder body of the second air cylinder is fixed on the side part of the first longitudinal roller conveyor on the opposite side of the first air cylinder; a piston rod of the second cylinder is vertically connected with a second push rod; the second push rod and the first push rod are arranged in parallel.

In the present invention, the lengths of the push rods (including the first push rod and the second push rod) are both equal to the length of the sagger or slightly greater than the length of the sagger (for example, the length of the push rod is 0.3-10cm, preferably 0.5-5cm longer than the length of the sagger).

In the invention, when the piston rods of the first cylinder and the second cylinder are fully extended, the distance between the two push rods (the first push rod and the second push rod) is slightly larger than the width of the single-row sagger but needs to be smaller than the receivable width of the automatic rotary discharging device.

In the invention, the second longitudinal roller conveyor has two speeds of slow speed and fast speed. Preferably, the conveying speed of the slow gear of the second longitudinal rollgang is equal to the speed of the first longitudinal rollgang or rollgang kiln exit rollgang. The speed of the "fast" gear is about 1.5 to 10 times, preferably 2 to 5 times that of the "slow" gear.

Preferably, the system further comprises a first split photoelectric switch and a second split photoelectric switch. The first separation photoelectric switch is arranged above the upstream of the second longitudinal conveying roller way and close to one end of the first longitudinal conveying roller way. The second separation photoelectric switch is arranged at the downstream of the second longitudinal roller conveyor and is positioned above a roller shaft at the tail end of the second longitudinal roller conveyor, preferably above the last roller shaft of the second longitudinal roller conveyor.

Preferably, the first separating photoelectric switch is at a distance of 0.25 to 1 times the length of the sagger, preferably at a distance of 0.3 to 0.9 times the length of the sagger, more preferably at a distance of 0.5 to 0.8 times the length of the sagger from the first roll axis in the second longitudinal rollgang.

Preferably, the automatic rotary discharging device comprises a rotary driving mechanism, a rotary bracket and a rotary automatic clamping mechanism.

Preferably, the rotating bracket comprises a rotating shaft and a rotating support frame beam, and the rotating support frame beam is fixedly connected with the rotating shaft. The rotating shaft is connected with a driving shaft of the rotating driving mechanism. The rotary supporting frame beam comprises 2 rotary supporting longitudinal beams and 2 rotary supporting cross beams. And 2 rotating support longitudinal beams are parallel to the roll shaft direction of the transverse conveying roll table and are vertically and fixedly connected with the rotating shaft. And 2 rotating support cross beams are parallel to the rotating shaft and are fixedly connected with the rotating support longitudinal beams. And 2 rotating support longitudinal beams and 2 rotating support cross beams form a rectangular fixed frame.

Preferably, the rotary automatic clamping mechanism comprises 2 clamping connection front connecting rods (which are located at one end close to the second longitudinal conveying roller way), 2 clamping connection rear connecting rods (which are located at one end far away from the second longitudinal conveying roller way) and a clamping bottom frame beam. The clamping bottom frame beam comprises 2 clamping bottom longitudinal beams and 1 clamping bottom cross beam. The 2 clamping bottom longitudinal beams are parallel to the rotary supporting longitudinal beams and are respectively and independently located below the 2 rotary supporting longitudinal beams. The clamping bottom beam is parallel to the rotation support beam and is located right below the rotation support beam at a position close to the rotation axis. And 2 clamping bottom longitudinal beams and 1 clamping bottom cross beam form a rectangular fixed frame with one open end, and the open position of the fixed frame is positioned at one end close to the second longitudinal conveying roller way. The front ends of the 2 clamping bottom longitudinal beams are respectively and independently connected with the two ends of a rotary supporting cross beam positioned at the front end of the rotary supporting frame beam through the 2 clamping connecting front connecting rods in a movably hinged connection mode. The two ends of the clamping bottom cross beam are respectively and independently connected with the two ends of the rotary supporting cross beam positioned at the rear end of the rotary supporting frame beam through the 2 clamping connecting rear connecting rods in a movably hinged connection mode. The rotary automatic clamping mechanism is positioned right below the rotary bracket. The rotary automatic clamping mechanism and the rotary bracket form a hollow square box body structure.

Preferably, the rotary supporting frame beam further comprises a plurality of supporting ribs. And two ends of the plurality of supporting ribs are respectively and fixedly connected with the rotary supporting longitudinal beam and/or the rotary supporting cross beam.

Preferably, the clamping bottom frame beam further comprises a plurality of clamping ribs. The bottom ends of the clamping ribs are fixedly connected with the clamping bottom cross beam, and the clamping ribs are parallel to the clamping bottom longitudinal beam. The clamping bottom longitudinal beam and the clamping ribs can move up and down between the adjacent roller shaft gaps on the transverse conveying roller way.

Preferably, the clamping bottom frame beam is further provided with a blocking mechanism. The blocking mechanism is fixedly connected with the clamping bottom longitudinal beam and/or the clamping rib. Preferably, the blocking mechanism is one of a baffle, a blocking strip and a blocking rod.

Preferably, the blocking mechanism is a baffle plate with a plurality of grooves arranged at the lower end at intervals, and any groove can be meshed and matched with any roller shaft in the transverse conveying roller way.

Preferably, a plurality of grooves are arranged on the clamping bottom cross beam at intervals, and any groove can be meshed and matched with any roller shaft in the transverse conveying roller way.

It should be noted that any one of the grooves can avoid collision and interference between the clamping bottom cross beam and the baffle and any one of the roller shafts in the transverse conveying roller way.

In the invention, the automatic rotary discharging device also comprises a rotary angle detection mechanism. The rotation angle detection means is a master controller or a proximity switch, and more preferably a proximity switch capable of detecting a 0 ° position and a 180 ° (preferably 170 °) position.

Preferably, the automatic rotary discharging device further comprises a sealing cover, and the sealing cover is integrally covered above the rotary driving mechanism, the rotary support and the rotary automatic clamping mechanism.

Generally, the sealing cover can be connected with a kiln body sealing cover of the calcining kiln into a whole according to the working condition requirement to form a full-sealing structure, and protective or oxidizing gas is introduced according to the requirement of a calcined material to adapt to the calcining process with the atmosphere.

Preferably, the automatic rotary discharging device further comprises a discharging chute, and the discharging chute is of a chute hopper type structure with a wide upper part and a narrow lower part. The discharge chute is integrally positioned below the rotary driving mechanism, the rotary bracket and the rotary automatic clamping mechanism, and the upper end opening of the discharge chute corresponds to the lower end opening of the sealing cover. And a discharge opening is formed below the discharge chute. Preferably, the discharge opening is a vacuum discharge opening.

Preferably, the automatic rotary unloading device further comprises a gas blowing device. The gas blowing device comprises a nozzle and a gas pipe. The nozzle is arranged in the discharge chute and is positioned right below the rotary automatic clamping mechanism after horizontal rotation (after horizontal rotation by 180 degrees or 170 degrees). The air pipe penetrates through the wall of the discharge chute and is communicated with the nozzle.

Preferably, the side wall and/or the top wall of the sealing cover are/is provided with a movable access door.

Preferably, the number of nozzles is 1 to 100, preferably 3 to 80, more preferably 5 to 50.

In general, the number of nozzles is 1 to 5 times, preferably 2 to 4 times, for example 2 or 3 times, the number of nozzles is 1 to 5 times, preferably 2 to 4 times, the number of nozzles is designed according to actual working conditions.

Preferably, the conveying device further comprises a turning conveying roller way and a return conveying roller way. The turning rollgang is positioned at the downstream of the transverse rollgang, and the front end of the turning rollgang is connected with the tail end of the transverse rollgang. The return rollgang is located at the downstream of the turning rollgang, and the front end of the return rollgang is connected with the tail end of the turning rollgang. The conveying direction of the return conveying roller way is opposite to the conveying direction of the first longitudinal conveying roller way.

It should be noted that the return rollgang is designed for the purpose of returning the kiln sagger to the feed end of the calcining kiln body to prepare for the next cycle of charging.

Preferably, the system further comprises a third discrete photoelectric switch. And the third separation photoelectric switch is arranged at the downstream of the transverse conveying roller way. Preferably, the third separation photoelectric switch is positioned above the last roll shaft in the transverse conveying roll table.

Preferably, the parts of the automatic leveling device and the automatic rotary discharging device, which are contacted with the saggar, are coated with heat-resistant flexible parts. Preferably, the heat-resistant flexible member is heat-resistant fluororubber.

According to a second embodiment of the invention, a method for automatically discharging saggars of a roller kiln or a method for automatically discharging saggars by adopting the system of the first embodiment is provided.

A method for automatically discharging saggars of a roller kiln comprises the following steps:

1) after the saggars containing the materials come out of the roller kiln, the saggars are conveyed to the front end of a second longitudinal conveying roller way through a first longitudinal conveying roller way, then single saggars in the front row are separated through the second longitudinal conveying roller way, and the saggars are quickly conveyed to a transverse conveying roller way to wait for unloading.

2) When the saggars containing materials are conveyed on the first longitudinal conveying roller way, the single-row saggars in the same row are pushed to be leveled and arranged through the automatic leveling device, and therefore the side walls of the saggars in the same row are tightly attached to the side walls of the saggars in the same row.

3) And carrying out automatic overturning and discharging treatment on the single-row saggars to be discharged, which are conveyed to the transverse conveying roller way, through an automatic rotary discharging device. And the single-row empty box bowls after unloading are sent back to the transverse conveying roller way and then conveyed to a return line. Meanwhile, a new row of saggers containing materials are continuously conveyed to the transverse roller conveyor through the second longitudinal roller conveyor to wait for discharging, and the process is circulated (namely, the steps 1) to 3) continuously.

Preferably, the method further comprises the steps of:

4) in the process of discharging the single-row saggars through the automatic rotary discharging device, the gas injection device is adopted to inject gas into the single-row saggars turned over by 180 degrees (preferably 170 degrees), so that residual materials in the single-row saggars can be fallen off.

Preferably, step 1) is specifically: after the saggars containing the materials come out of the roller kiln, the saggars containing the materials are conveyed to the front end of the second longitudinal roller conveyor in a row unit through the first longitudinal roller conveyor. When the single-row saggars reach the detection position of the first separation photoelectric switch (light of the first separation photoelectric switch is blocked), the conveying speed of the second longitudinal conveying roller way is increased, and the single-row saggars containing materials are conveyed to the transverse conveying roller way to wait for discharging. And when a second separation photoelectric switch positioned at the last roll shaft of the second longitudinal conveying roll table detects that the single-row saggers completely pass through, recovering that the conveying speed of the second longitudinal conveying roll table is consistent with that of the first longitudinal conveying roll table, and at the moment, the foremost end of the single-row saggers of the next row does not reach or just reaches the front end of the second longitudinal conveying roll table.

Preferably, step 2) is specifically: when the saggar containing the material is conveyed in a row on a first longitudinal conveying roller way at a constant speed, when a leveling photoelectric switch on the first longitudinal conveying roller way detects that the single-row saggar begins to pass (the light of the leveling photoelectric switch is blocked), the single-row saggar just lies between a first leveling mechanism and a second leveling mechanism of an automatic leveling device, the first leveling mechanism and the second leveling mechanism are started simultaneously, the first leveling mechanism and the second leveling mechanism simultaneously push the single-row saggar in the same row from two sides of the first longitudinal conveying roller way to be leveled and arranged, and the side wall of the same-row saggar are tightly attached.

Preferably, step 3) is specifically: and after a second separation photoelectric switch positioned at the last roll shaft of the second longitudinal roller conveyor detects that the single-row sagger completely passes through, starting a rotary driving mechanism to drive a rotary support and a rotary automatic clamping mechanism to overturn the single-row sagger by 180 degrees (preferably 170 degrees) in a sealing cover for discharging. In the process of turning the rotary bracket and the rotary automatic clamping mechanism for 180 degrees (preferably 170 degrees), the clamping bottom longitudinal beam and the clamping ribs for clamping the bottom frame beam move upwards from the gap between the roll shafts of the transverse conveying roller way to lift the single-row sagger in a rotating way. In the process of rotating and lifting, the single-row saggars slowly approach the blocking mechanism, and meanwhile, the clamping bottom frame beam slowly moves downwards in an asymptotic dislocation mode relative to the rotating support frame beam under the assistance of the 2 clamping connection front connecting rods and the 2 clamping connection rear connecting rods. When the rotary support and the rotary automatic clamping mechanism rotate to 90 degrees, the front end wall surface of the single-row sagger is tightly attached to the blocking mechanism, the clamping ribs for clamping the bottom frame beam are tightly attached to the bottom surface of the single-row sagger, and the single-row sagger is firmly clamped between the clamping bottom frame beam and the rotary supporting frame beam. The rotating rack and rotary automatic gripper mechanism continue to turn 180 (preferably 170) and dump the contents of the single row of saggers into a discharge chute. And the single-row empty box bowls after unloading are reversely turned for 180 degrees (preferably 170 degrees) through the rotary support and the rotary automatic clamping mechanism and then are sent back to the transverse conveying roller way, and in the process, the clamping bottom frame beam slowly moves downwards in a gradually-far staggered manner relative to the rotary supporting frame beam under the assistance of the root clamping connection front connecting rod and the root clamping connection rear connecting rod. When the rotary bracket and the rotary automatic clamping mechanism rotate and return to 0 degree, the clamping bottom frame beam and the rotary supporting frame beam are completely loosened to discharge the saggar and return to the original state. And starting a transverse conveying roller way to convey the single-emptying sagger to a return conveying roller way through a turning conveying roller way. And after a third separation photoelectric switch positioned at the last roll shaft of the transverse conveying roll table detects that the single-emptying sagger completely passes through, closing the transverse conveying roll table. Meanwhile, a new row of single-row saggars containing materials are continuously conveyed to the transverse conveying roller way through the second longitudinal conveying roller way to wait for unloading, and the process is repeated.

Preferably, the step 4) is specifically: when the rotating bracket and the rotary automatic clamping mechanism of the single-row sagger are turned to 180 degrees (preferably 170 degrees), the gas injection device is started to inject gas into the inverted single-row sagger, so that residual materials in the single-row sagger bodies all fall into the discharge chute.

Preferably, the number of single-row sagger ranges from 1 to 12, preferably from 2 to 8, more preferably from 3 to 5.

Preferably, steps 1) to 4) have the following motion interlock relationship: when the second longitudinal conveying roller way runs at a 'quick' gear, the automatic rotary discharging device cannot run in a rotating way; when the second separation photoelectric switch detects that light is blocked, the automatic rotary discharging device cannot rotate to operate. When the angle detection mechanism of the automatic rotary discharging device detects that the device is not at the 0-degree position, the second longitudinal conveying roller way cannot run at a 'quick' gear, and the transverse conveying roller way cannot run at the same time. When the third separation photoelectric switch detects that light is blocked, the transverse conveying roller way cannot stop running. When the second longitudinal roller conveyor runs at a slow speed gear and the second photoelectric switch detects that light is blocked, all movable parts of all the devices are stopped to give a fault alarm until the fault is repaired.

In the prior art, the material calcined in the roller kiln and the saggar still keep high temperature after being taken out of the kiln, and the residual temperature is generally 150 ℃ to 200 ℃. The manual discharging of the roller kiln has the problems of high labor intensity, high temperature of the working environment, high dust emission of the working environment, occupational disease risk, easy introduction of impurities and influence on the product quality. When the roller kiln adopts a scheme of absorbing powder by using a vacuum tube, when the calcined material is caked and the caking degree is greater than the cross section of the suction tube, the absorption is difficult, and a device for driving the saggar and the suction nozzle to move horizontally and vertically relatively is complex. The existing roller kiln sagger tipping and discharging scheme can only be suitable for single sagger tipping and discharging, and the production efficiency is low. The existing roller kiln sagger tipping and discharging scheme does not effectively clamp the sagger in the tipping process, and when the sagger is damaged at a certain part or has larger deviation of shape and position dimensions, the fixed baffle cannot be completely clamped, so that the risk of the sagger falling off exists. The roller kiln is unloaded and is adopted the manipulator to grasp the upset scheme of falling the material in addition, and this scheme cost is higher, and the manipulator is grasped the upset and is fallen the material and difficult make sealed, the structure of not raise dust, is unfavorable for popularization and application.

According to the automatic leveling device, a plurality of saggars (hereinafter referred to as single-row saggars) in the same row (arranged in the axial direction of a roller shaft) can be pushed and leveled through the automatic leveling device, so that gaps between the saggars of the single-row saggars and side walls of the saggars are reduced and even eliminated, and tight fit is realized. Two single-row saggers which are tightly attached to each other are continuously separated through a second longitudinal roller conveyor (the second longitudinal roller conveyor is a variable-speed roller conveyor, the initial conveying speed of the second longitudinal roller conveyor is 0 or is consistent with that of the first longitudinal roller conveyor, and the accelerated conveying speed of the second longitudinal roller conveyor is 1-5 times, preferably 2-4 times that of the first longitudinal roller conveyor) (if n rows of single-row saggers are simultaneously conveyed on the first longitudinal roller conveyor, when the frontmost single-row saggers are conveyed on the second longitudinal roller conveyor, the conveying speed of the second longitudinal roller conveyor is adjusted to be accelerated through detection and feedback of a second separation photoelectric switch, so that the frontmost single-row saggers are quickly conveyed, and the purpose that the frontmost single-row saggers are separated from the rear (n-1) row saggers is achieved, and the single-row saggers are conveyed to a transverse roller conveyor to wait for unloading. At last, the single-row saggars conveyed to the transverse conveying roller way are overturned and unloaded through the automatic rotary unloading device, because the single-row saggars are pushed to be flat and arranged in advance through the automatic leveling device, every two single-row saggars are tightly attached, so that in the overturning and unloading process, the serious collision cannot occur between the saggars in the same row, the safety of the saggars is effectively guaranteed when the multiple saggars are unloaded simultaneously, the damage rate of the saggars is greatly reduced, the production efficiency is improved, and the production cost is reduced.

In the invention, the automatic leveling device comprises a first leveling mechanism, a second leveling mechanism and a leveling photoelectric switch. The first leveling mechanism and the second leveling mechanism are symmetrically arranged on two sides of the first longitudinal conveying roller way. The first leveling mechanism and the second leveling mechanism are respectively and independently composed of an air cylinder and a push rod. Generally, the leveling photoelectric switch is located downstream of the first leveling mechanism and the second leveling mechanism, and is specifically located at a position where when the leveling photoelectric switch detects that a single-row sagger just starts to pass through (light of the leveling photoelectric switch is blocked), the single-row sagger is just located within an effective leveling finishing range of two push rods of the first leveling mechanism and the second leveling mechanism. When the leveling photoelectric switch detects that a single-row sagger passes through (or certain time delay can be set according to working condition requirements), the two cylinders of the first leveling mechanism and the second leveling mechanism are started immediately, the two cylinders push the two push rods out oppositely at the same time, and the two pushed push rods arrange the single-row sagger into a two-two tightly-attached state. When two pistons are pushed out to the limit position with two push rods that set up relatively, the interval of two push rod spare is the total width of single-row sagger (can rationally adjust according to operating condition). In order to further protect the saggar, the push rod is generally coated with a heat-resistant soft material (for example, heat-resistant fluororubber).

In the invention, a first separation photoelectric switch and a second separation photoelectric switch are arranged on a first longitudinal roller conveyor, generally, the initial conveying speed of the second longitudinal roller conveyor is the same as that of the first longitudinal roller conveyor, and the aim is to smoothly transfer a single-row sagger from the first longitudinal roller conveyor to the second longitudinal roller conveyor. The distance between the first separation photoelectric switch and the first supporting roller shaft in the second longitudinal conveying roller way (the distance refers to the vertical distance in the longitudinal direction of the horizontal plane) is 0.25-1 times of the length of the sagger (preferably 0.3-0.9 times of the length of the sagger, and more preferably 0.5-0.8 times of the length of the sagger). And the second separation photoelectric switch is arranged above the last downstream roll shaft of the second longitudinal roller conveyor, and at the moment, when the second separation photoelectric switch detects that the single-row saggars completely pass through, on one hand, the feedback information recovers that the conveying speed of the second longitudinal roller conveyor is the same as that of the first longitudinal roller conveyor. On the other hand, the feedback information starts the automatic rotary discharging device to start discharging the single-row saggars which are already positioned on the transverse conveying roller way (generally, according to the requirement of actual working conditions, a certain time delay can be set for starting the automatic rotary discharging device).

In the invention, the automatic rotary discharging device comprises a rotary driving mechanism, a rotary bracket and a rotary automatic clamping mechanism. The rotary support comprises a rotary shaft and a rotary supporting frame beam, the rotary supporting frame beam comprises 2 rotary supporting longitudinal beams and 2 rotary supporting cross beams, and the 2 rotary supporting longitudinal beams and the 2 rotary supporting cross beams form a rectangular fixed frame (namely the rotary supporting frame beam); the rotation support frame beam is fixedly connected with the rotation shaft (generally, one end of each of 2 rotation support longitudinal beams is extended and then fixedly connected with the rotation shaft). The rotating shaft is connected with a driving shaft of the rotating driving mechanism. Namely, the rotation driving mechanism is started, so that the driving shaft is driven to rotate, the rotation of the driving shaft further drives the rotation shaft to rotate, and finally the rotation shaft drives the rotation supporting frame beam to rotate. Thereby realizing the turnover of the whole rotating bracket. Here, the rotation is a horizontal reversal from 0 ° to 180 ° (preferably 170 °), and a further revolution from 180 ° (preferably 170 °) to 0 °. Wherein the rotating bracket is in an initial state (namely 0 degrees) when being positioned above the transverse conveying roller way. Furthermore, the rotary supporting frame beam also comprises a plurality of supporting ribs. The two ends of the plurality of support ribs are respectively and fixedly connected with the rotary support cross beam and/or the rotary support longitudinal beam (the rear ends (far away from one end of the second longitudinal conveying roller way) of the support ribs which are longitudinally arranged can be optionally extended and then are fixedly connected with the rotary shaft).

In the invention, the rotary automatic clamping mechanism comprises 2 clamping connection front connecting rods, 2 clamping connection rear connecting rods and a clamping bottom frame beam. The clamping bottom frame beam comprises 2 clamping bottom longitudinal beams and 1 clamping bottom cross beam. And 2 clamping bottom longitudinal beams and 1 clamping bottom cross beam form a rectangular fixed frame (namely a clamping bottom frame beam) with one open end (the opening is positioned at one end close to the second longitudinal conveying roller way). The clamping bottom frame beam is positioned right below the rotary supporting frame beam, and the front ends of the 2 clamping bottom longitudinal beams are respectively and independently connected with the two ends of the rotary supporting cross beam positioned at the front end of the rotary supporting frame beam through the 2 clamping connecting front connecting rods in a movably hinged connection mode; the two ends of the clamping bottom cross beam are respectively and independently connected with the two ends of the rotating support cross beam positioned at the rear end of the rotating support frame beam through the 2 clamping connection rear connecting rods in a movable hinged connection mode (the front end refers to one end close to the second longitudinal conveying roller way, and the rear end is the reverse end). At this time, the whole rotary automatic clamping mechanism is positioned right below the rotary bracket. Furthermore, the clamping bottom frame beam also comprises a plurality of clamping ribs. The bottom ends of the clamping ribs are fixedly connected with the clamping bottom cross beam, and the clamping ribs are parallel to the clamping bottom longitudinal beam (namely the clamping ribs are longitudinally arranged). The clamping bottom longitudinal beam and the clamping ribs can move up and down between the adjacent roller shaft gaps on the transverse conveying roller way. When the rotary automatic clamping mechanism is in an initial state, the whole clamping bottom frame beam is positioned below the transverse conveying roller way (or the clamping bottom cross beam and the clamping ribs are positioned in a gap between adjacent roller shafts of the transverse conveying roller way). The rotary automatic clamping mechanism and the rotary bracket integrally form a hollow (for containing a single-row saggar) square box body structure (hollow square or cuboid structure). When the whole rotary support is turned over, the rotary automatic clamping mechanism can be driven to rotate and turn over together.

In the invention, the clamping bottom frame beam is also provided with a blocking mechanism. The blocking mechanism is fixedly connected with the clamping bottom longitudinal beam and/or the supporting rib. Preferably, the blocking mechanism is one of a baffle, a blocking strip and a blocking rod. Generally, the blocking mechanism is a baffle plate with a plurality of grooves arranged at the lower end at intervals, and any groove can be meshed and matched with any roller shaft in the transverse conveying roller way. Meanwhile, a plurality of same grooves are arranged on the clamping bottom cross beam at intervals. The arrangement of the groove is to better enable the whole clamping bottom frame beam to be located below the transverse conveying roller way (or the clamping bottom longitudinal beam and the clamping ribs are located in the gap between the adjacent roller shafts of the transverse conveying roller way), so that the situation that the whole clamping bottom frame beam (especially the clamping bottom longitudinal beam and the clamping ribs) cannot descend below the transverse conveying roller way or descend to the gap between the adjacent roller shafts due to the fact that the blocking mechanism or the clamping bottom longitudinal beam is blocked by the roller shafts of the transverse conveying roller way is avoided.

In the invention, when the rotary automatic clamping mechanism rotates and turns along with the rotary support, firstly, the rotary supporting frame beam rotates along with the rotary shaft (generally, the rotary supporting frame beam rotates from a side close to the second longitudinal conveying roller way to a side far away from the second longitudinal conveying roller way), and because the clamping bottom frame beam is connected with the rotary supporting frame beam through 2 clamping connecting front connecting rods and 2 clamping connecting rear connecting rods, the rotary supporting frame beam can upwards rotate and lift the clamping bottom frame beam through the 2 clamping connecting front connecting rods and the 2 clamping connecting rear connecting rods, and further drives the whole clamping bottom frame beam to complete the turnover and reset of 180 degrees (preferably 170 degrees) horizontally, thereby completing the turnover and unloading of a single-row sagger and the reset operation of a single-emptying sagger. The whole process of turning and resetting the rotating supporting frame beam and the clamping bottom frame beam together for 180 degrees (preferably 170 degrees) can be mainly decomposed into the following four stages:

the first inversion stage is from 0 ° to 90 ° inversion stage: the clamping bottom longitudinal beams and the clamping ribs of the clamping bottom frame beam penetrate through the gaps of the roll shafts from the lower direction of the transverse conveying roller way and then lift the tightly attached single-row sagger, and in the process of lifting the single-row sagger, the single-row sagger integrally slowly slides to the grid blocking mechanism (generally a baffle) under the action of gravity (the gravity of the single-row sagger and the gravity of materials) and finally abuts against the grid blocking mechanism. Meanwhile, the clamping bottom frame beam is always positioned below the rotating support frame beam, so that under the action of gravity (gravity of a single-row sagger and materials and gravity of the clamping bottom frame beam), the clamping bottom frame beam slowly moves downwards in a gradually approaching type dislocation mode relative to the rotating support frame beam through 2 clamping connection front connecting rods and 2 clamping connection rear connecting rods (the 2 clamping connection front connecting rods and the 2 clamping connection rear connecting rods are simultaneously perpendicular to the clamping bottom frame beam and the rotating support frame beam and are simultaneously connected with the clamping bottom frame beam and the rotating support frame beam in an inclined intersecting mode, namely a rectangular frame body formed by combining the clamping bottom frame beam and the rotating support frame beam is changed into an inclined hexahedron (comprising a pair of parallelogram side faces) from a cuboid (or square) shape. When the clamping bottom frame beam and the rotary supporting frame beam rotate to 90 degrees, the front end wall surface of the single-row sagger is tightly attached to the grid blocking mechanism, the clamping ribs for clamping the bottom frame beam are also tightly attached to the bottom surface of the single-row sagger, and the single-row sagger is firmly clamped between the clamping bottom frame beam and the rotary supporting frame beam, so that the single-row sagger is firmly fixed, and the single-row sagger is prevented from shaking and colliding under the action of gravity and external force (such as centrifugal force) in a second overturning stage to be damaged.

The second inversion stage is an inversion from 90 ° to 180 ° (preferably from 90 ° to 170 °): the clamping bottom frame beam and the rotating support frame beam which firmly clamp the single-row saggars continuously turn over towards 180 degrees (preferably 170 degrees), at the moment, the clamping bottom frame beam is always positioned above the rotating support frame beam, the clamping bottom frame beam is always firmly pressed on the bottom surface of the single-row saggars under the action of self gravity (in the stage, the larger the turning angle is, the gravity for clamping the bottom frame beam slowly and intensively acts on the single-row saggars and is further tighter the pressure is), the gravity of the single-row saggars is slowly transferred to act on the support ribs by acting on the blocking mechanism until the gravity is completely acted on the support ribs, at the moment, the opening of the saggars faces downwards and is supported by the support ribs of the rotating support frame beam, and the support ribs are of a strip-shaped structure and only play a role in supporting and clamping the single-row saggars, so that materials in the single-row saggars can freely fall into a discharge chute from the spaces between the support ribs and the support ribs, and the discharging operation of pouring the materials in the single-row saggars into the discharging chute is completed. In the whole stage, the single-row sagger is firmly clamped all the time, the stability of the single-row sagger is continuously and effectively ensured, and convenience is provided for smooth discharging.

The third inversion stage is an inversion from 180 ° to 90 ° (preferably from 170 ° to 90 °): the unloaded single-row empty sagger starts to reversely turn through the clamping bottom frame beam and the rotating support frame beam, in the process, the single-row sagger is firmly clamped by the clamping bottom frame beam and the rotating support frame beam all the time, only the gravity of the clamping bottom frame beam is slowly transferred from acting on the single-row empty sagger, when the single-row sagger is restored to the 90-degree position, the gravity of the clamping bottom frame beam does not act on the single-row empty sagger, but is transferred to continuously act on the front connecting rod, the rear connecting rod and the rotating support frame beam which are connected in a clamping manner; at the same time, the gravity of the single emptying sagger is slowly transferred back to act on the blocking mechanism by acting on the supporting ribs until the gravity acts on the blocking mechanism completely. And preparing for the fourth stage to place the single-emptying sagger back on the transverse conveying roller way.

The fourth flipping phase is from 90 ° to 0 °: at this stage, the single-emptying saggar which is not subjected to the gravity action of the clamping bottom frame beam any more abuts against the blocking mechanism under the gravity action of the single-emptying saggar and the clamping bottom frame beam, and in the process of turning to 0 degree, the clamping bottom frame beam slowly performs progressive dislocation movement relative to the rotating support frame beam through the 2 clamping connection front connecting rods and the 2 clamping connection rear connecting rods under the gravity action (the gravity of the single-emptying saggar and the gravity of the clamping bottom frame beam per se) (the 2 clamping connection front connecting rods and the 2 clamping connection rear connecting rods are connected with the clamping bottom frame beam and the rotating support frame beam in a simultaneous oblique and crossed manner and are converted back to be vertically connected with the clamping bottom frame beam and the rotating support frame beam, namely, the form of an oblique hexahedron (comprising two pairs of parallelogram sides) formed by combining the clamping bottom frame beam and the rotating support frame beam is converted into the form of a cuboid. At the same time, the single evacuation sagger is slowly supported on the holding ribs until the weight of the single evacuation sagger is fully applied to the holding ribs. When the clamping bottom frame beam and the rotary supporting frame beam rotate to 0 degree, the clamping bottom longitudinal beam and the clamping ribs which clamp the bottom frame beam return to the lower part of the transverse conveying roller way, and the single emptying sagger returns to the transverse conveying roller way. Thereby completing the entire discharging operation.

It should be noted that, in order to further protect the sagger from being damaged, the plurality of supporting ribs, the plurality of clamping ribs and the grid blocking mechanism are all coated with heat-resistant flexible parts. For example, the heat-resistant flexible member is heat-resistant fluororubber.

In the invention, when the single-row empty sagger returns to the transverse conveying roller way, the system automatically starts the transverse conveying roller way to convey the single-row empty sagger away, and when a third separation photoelectric switch arranged at the downstream of the transverse conveying roller way and above the last roller shaft in the transverse conveying roller way detects that the single-row empty sagger completely leaves (the light of the third separation photoelectric switch is changed into light again from being blocked once and is not blocked), the information is fed back, and the operation of the transverse conveying roller way is closed. Meanwhile, the single-row saggars filled with materials in the back row are automatically leveled, and just enter the front end of the second longitudinal roller conveyor (according to the time spent by the single-row saggars in the front row from the front end of the second longitudinal roller conveyor to the tail end of the transverse roller conveyor when the single-row saggars leave the front end of the second longitudinal roller conveyor and the distance between the two adjacent rows of saggars, the conveying speed of the first longitudinal roller conveyor can be reasonably adjusted).

In the invention, the system is also provided with a sealing cover which is integrally covered above the rotary driving mechanism, the rotary bracket and the rotary automatic clamping mechanism (if necessary, the covering range can also comprise a first longitudinal conveying roller way part and a second longitudinal conveying roller way part). Through being provided with the sealed cowling for the whole process that single-row sagger was unloaded from waiting until unloading and is accomplished is all accomplished in the sealed cowling, the dust pollution environment that produces when can effectively avoiding unloading. Furthermore, movable access doors are arranged on the side wall and/or the top wall of the sealing cover. The equipment in the cover can be conveniently overhauled and the parts can be conveniently replaced and maintained.

In the invention, the automatic rotary discharging device also comprises a discharging groove which is of a bucket type structure with a wide upper part and a narrow lower part. The discharge chute is integrally positioned below the rotary driving mechanism, the rotary bracket and the rotary automatic clamping mechanism (and is also positioned below the front end of the transverse conveying roller way), and the upper end opening of the discharge chute corresponds to the lower end opening of the sealing cover. And a discharge opening is formed below the discharge chute. The discharge port is a vacuum discharge port. The bin outlet is connected with powder vacuum conveying system, provides little negative pressure environment for whole blowpit and sealed cowling, and then prevents the effusion of dust.

In the present invention, the system further comprises a gas blowing device. The gas blowing device comprises a nozzle and a gas pipe. The nozzle is arranged in the discharge chute and is positioned right below the rotary automatic clamping mechanism after rotating 180 degrees (preferably 170 degrees). The air pipe penetrates through the wall of the discharge chute and is communicated with the nozzle. The gas blowing device is used for blowing off materials remained in the saggar. The air is blown out at the position where the rotary automatic clamping mechanism is turned for 180 degrees (preferably 170 degrees) and stays for a certain time (the staying time can be reasonably designed according to the actual working condition).

The invention comprises a turning conveying roller way and a return conveying roller way. The turning rollgang is positioned at the downstream of the transverse rollgang, and the front end of the turning rollgang is connected with the tail end of the transverse rollgang. The return rollgang is located at the downstream of the turning rollgang, and the front end of the return rollgang is connected with the tail end of the turning rollgang. The conveying direction of the return conveying roller way is opposite to the conveying direction of the first longitudinal conveying roller way. Through the arrangement of the turning conveying roller way and the return conveying roller way, the empty box bowls after unloading are recycled, and the production efficiency is improved.

In the invention, the effective width of the roller kiln body is 0.3-2 m. In the roller kiln body, the running speed of the sagger is 1-50m/h, preferably 3-30m/h, and more preferably 5-20 m/h. The parameters are only preferred embodiments of the invention, and are not taken as limiting bases for the technical scheme of the invention, and corresponding numerical values can be reasonably adjusted and set according to actual working conditions.

In the invention, the size of the sagger is 30-500mm in length, 30-500mm in width and 5-300mm in height, preferably 50-400mm in length, 50-400mm in width and 10-200mm in height, more preferably 80-300mm in length, 80-300mm in width and 20-100mm in height. Generally, 3-5 sagger are arranged in a row in the transverse direction of the kiln body or the conveying device, and the loading amount of a single sagger is preferably about 1-5 kg. The parameters are only preferred embodiments of the invention, and are not taken as limiting bases for the technical scheme of the invention, and corresponding numerical values can be reasonably adjusted and set according to actual working conditions.

In the invention, the width (which refers to the effective length of the roll shaft) of the longitudinal roller conveyors (including the first longitudinal roller conveyor and the second longitudinal roller conveyor) is 0.5-3m, preferably 0.8-3m, and more preferably 1-3 m; the length is 0.3 to 10m, preferably 0.5 to 8m, more preferably 0.8 to 1 m. The maximum conveying speed is 0.1-1m/s, preferably 0.5-1 m/s. The parameters are only preferred embodiments of the invention, and are not taken as limiting bases for the technical scheme of the invention, and corresponding numerical values can be reasonably adjusted and set according to actual working conditions.

In the invention, the width of the transverse roller conveyor (the effective length of the roller shaft) is 0.1-0.8m, preferably 0.1-0.6m, and more preferably 0.1-0.5 m; the length of the sagger is 0.3-10m, preferably 0.5-8m, and more preferably 0.8-5m (generally, the width of the roller conveyor should be designed according to the number of single-row saggers and the width of a single sagger, that is, the total width of the single-row saggers should be matched and adapted with the total width of the roller conveyor, that is, the requirements of safe and stable conveying of the single-row saggers need to be met, and the requirements of small occupied area and low investment need to be met by the design of the roller conveyor). The maximum conveying speed is 0.1-1m/s, preferably 0.5-1 m/s. The parameters are only preferred embodiments of the invention, and are not taken as limiting bases for the technical scheme of the invention, and corresponding numerical values can be reasonably adjusted and set according to actual working conditions.

In the present invention, the asymptotic misalignment shift refers to: when the automatic rotary discharging device clamps the single-row saggars and rotates to the vertical position of 90 degrees from the horizontal 0-degree position, the clamping bottom frame beam takes the clamping connecting rod as the rotary moving part to perform vertical downward dislocation movement relative to the rotary supporting frame beam, and meanwhile, in the downward dislocation movement process of the clamping bottom frame beam, the clamping bottom frame beam can slowly approach the rotary supporting frame beam to perform progressive movement, and finally the saggars are clamped tightly. That is, referring to fig. 4 as a reference, in the rotation process of 0 ° to 90 °, therefore, the downward dislocated movement and the rightward progressive movement (approaching to the rotation support frame beam) are simultaneously performed to clamp the bottom frame beam, which are the movements in two directions, and in the present invention, such simultaneous two-direction movement to clamp the bottom frame beam is referred to as a progressive dislocated movement. Similarly, the gradually distant dislocation movement means: in the process of returning from the 90-degree vertical position to the 0-degree horizontal position, the clamping bottom frame beam continues to use the clamping connecting rod as a rotating movable piece, and the clamping bottom frame beam can slowly move away from the rotating supporting frame beam in a gradually-far mode while carrying out vertical downward staggered movement relative to the rotating supporting frame beam.

Compared with the prior art, the beneficial technology of the invention is as follows:

1. according to the automatic roller kiln sagger discharging system, through the arrangement of the variable-speed conveying roller way and the gravity clamping type automatic rotary discharging device, materials in a plurality of saggers in a single row can be turned over and discharged simultaneously, the automatic roller kiln sagger discharging system has the advantages of being simple in structure, fast in discharging and low in sagger loss rate, production efficiency is greatly improved, and production cost is reduced.

2. The automatic roller kiln sagger discharging system adopts the design of the parallel deformable frame type sagger rotary automatic clamping mechanism, clamps and releases the sagger only by the kinetic energy of the dead weight of the sagger and the rotary automatic clamping mechanism, and reduces the impact damage of the clamping mechanism to the sagger in the process of rotating and tipping.

3. The invention arranges the irregularly arranged saggars through the automatic leveling device, and reduces the risk of 'kiln blocking' caused by blocking the saggars from being taken out of the kiln compared with the arrangement of the guide plates.

Drawings

Fig. 1 is a side view structural diagram of the automatic roller kiln sagger discharging system.

Fig. 2 is a top view structural diagram of the automatic roller kiln sagger discharging system.

Fig. 3a is a first exemplary configuration diagram of the blocking mechanism according to the present invention.

Fig. 3b is a second exemplary configuration of the blocking mechanism according to the present invention.

Fig. 3c is a third exemplary configuration of the blocking mechanism according to the present invention.

Fig. 4 is an exemplary diagram of the structural states of the rotating support frame beam and the clamping bottom frame beam at 0 °, 90 °, and 180 °, respectively, according to the present invention.

FIG. 5 is a schematic view of the combination structure of the rotary supporting frame beam, the clamping bottom frame beam and the roll shaft according to the present invention.

FIG. 6 is a flow chart of the automatic discharging method of the sagger of the roller kiln.

Reference numerals: 1: a conveying device; 11: a first longitudinal rollgang; 12: a second longitudinal rollgang; 13: a transverse conveying roller way; 14: turning a conveying roller way; 15: returning to the conveying roller bed; 2: an automatic leveling device; 21: a first leveling mechanism; 211: a first cylinder; 212: a first push rod; 22: a second leveling mechanism; 221: a second cylinder; 222: a second push rod; 23: leveling the photoelectric switch; 3: automatically rotating the discharge device; 31: a rotation driving mechanism; 32: rotating the bracket; 321: a rotating shaft; 322: rotating the support frame beam; 3221: rotating the support beam; 3222: rotating the support longitudinal beam; 3222: a support rib; 33: a rotary automatic clamping mechanism; 331: the front connecting rod is clamped and connected; 332: the back connecting rod is clamped and connected; 333: clamping the bottom frame beam; 3331: clamping the bottom beam; 3332: clamping the bottom longitudinal beam; 3333: clamping the ribs; 3334: a blocking mechanism; 34: a sealing cover; 341: a movable access door; 35: a discharge chute; 351: a discharge outlet; 36: a gas injection device; 361: a nozzle; 362: an air tube; 401: a first split photoelectric switch; 402: a second split photoelectric switch; 403: a third separate photoelectric switch; 5: and (5) sagger.

Detailed Description

The technical solution of the present invention is illustrated below, and the claimed scope of the present invention includes, but is not limited to, the following examples.

The utility model provides a roller kilns sagger automatic discharge system, this system includes: a conveying device 1, an automatic leveling device 2 and an automatic rotary unloading device 3. The conveying device 1 comprises a first longitudinal conveying roller way 11, a second longitudinal conveying roller way 12 and a transverse conveying roller way 13. The second longitudinal rollgang 12 is arranged at the downstream of the first longitudinal rollgang 11, and the front end of the second longitudinal rollgang 12 is connected with the tail end of the first longitudinal rollgang 11. The transverse rollgang 13 is arranged at the downstream of the second longitudinal rollgang 12, and the tail end of the second longitudinal rollgang 12 is connected with the inner side of the front end of the transverse rollgang 13. The automatic leveling device 2 is arranged at the side of the first longitudinal roller conveyor 11. The automatic rotary discharging device 3 is arranged at the upstream of the transverse conveying roller way 13.

Preferably, the automatic leveling device 2 includes a first leveling mechanism 21, a second leveling mechanism 22, and a leveling photoelectric switch 23. The first leveling mechanism 21 and the second leveling mechanism 22 are symmetrically arranged on two sides of the first longitudinal roller conveyor 11. The leveling photoelectric switch 23 is disposed at a side of the first longitudinal roller conveyor 11 and above the first longitudinal roller conveyor 11.

Preferably, the first leveling mechanism 21 includes a first cylinder 211 and a first push rod 212; the cylinder body of the first air cylinder 211 is fixed on a cross beam at one side of the first longitudinal roller conveyor 11; the piston rod of the first cylinder 211 is vertically connected with the first push rod 212; the axial direction of the first push rod 212 is perpendicular to the roller way axial direction of the first longitudinal roller way 11.

Preferably, the second leveling mechanism 22 includes a second cylinder 221 and a second push rod 222; the cylinder body of the second air cylinder 221 is fixed on the side part of the first longitudinal roller conveyor 11 opposite to the first air cylinder 211; the piston rod of the second cylinder 211 is vertically connected with the second push rod 222; the second push rod 222 is parallel to the first push rod 212.

Preferably, the system further comprises a first split opto-electronic switch 401 and a second split opto-electronic switch 402. The first separated photoelectric switch 401 is arranged above the upstream of the second longitudinal roller conveyor 12 and close to one end of the first longitudinal roller conveyor 11. The second split photoelectric switch 402 is disposed downstream of the second longitudinal roller conveyor 12 and above the roller shaft at the end of the second longitudinal roller conveyor 12, preferably above the last roller shaft of the second longitudinal roller conveyor 12.

Preferably, the first separation photoelectric switch 401 is at a distance of 0.25 to 1 times the length of the sagger 5 from the first roll axis in the second longitudinal rollerway 12, preferably at a distance of 0.3 to 0.9 times the length of the sagger 5, more preferably at a distance of 0.5 to 0.8 times the length of the sagger 5.

Preferably, the automatic rotary discharging device 3 includes a rotary driving mechanism 31, a rotary bracket 32, and a rotary automatic clamping mechanism 33.

Preferably, the rotating bracket 32 includes a rotating shaft 321 and a rotating support frame beam 322, and the rotating support frame beam 322 is fixedly connected to the rotating shaft 321. The rotation shaft 321 is connected to a drive shaft of the rotation drive mechanism 31. The pivoting support frame beam 322 includes 2 pivoting support longitudinal beams 3221 and 2 pivoting support cross beams 3222. The 2 rotating support longitudinal beams 3221 are parallel to the roller axis direction of the transverse roller conveyor 13 and are vertically and fixedly connected to the rotating shaft 321. The 2 rotating support cross beams 3222 are parallel to the rotating shaft 321 and are fixedly connected to the rotating support longitudinal beams 3221. The 2 longitudinal rotating support beams 3221 and the 2 transverse rotating support beams 3222 form a rectangular fixed frame.

Preferably, the rotary automatic clamp mechanism 33 includes 2 clamp-connection front links 331, 2 clamp-connection rear links 332, and a clamp bottom frame beam 333. The clamping bottom frame beams 333 include 2 clamping bottom stringers 3331 and 1 clamping bottom cross beam 3332. The 2 clamping bottom longitudinal beams 3331 are parallel to the rotary support longitudinal beams 3221 and are each independently located below 2 rotary support longitudinal beams 3221. The clamping bottom beam 3332 is parallel to the rotation support beam 3222 and is located directly below the rotation support beam 3222 at a location near the rotation axis 321. The 2 clamping bottom longitudinal beams 3331 and 1 clamping bottom cross beam 3332 form a rectangular fixed frame with one open end, and the open position of the fixed frame is close to one end of the second longitudinal roller conveyor 12. The front ends of the 2 clamping bottom longitudinal beams 3331 are respectively and independently connected with the two ends of a rotary supporting cross beam 3222 positioned at the front end of the rotary supporting frame beam 322 by the 2 clamping connecting front connecting rods 331 in a movable hinged connection manner. The two ends of the clamping bottom beam 3332 are independently connected to the two ends of the rotating support beam 3222 at the rear end of the rotating support frame 322 by the 2 clamping connection rear connecting rods 332 in a hinged connection. The rotary automatic clamp mechanism 33 is located directly below the rotary support 32. The rotary automatic clamping mechanism 33 and the rotary bracket 32 form a hollow square box structure.

Preferably, the rotating support frame beam 322 further comprises a plurality of support ribs 3222. Two ends of the plurality of support ribs 3222 are respectively and fixedly connected with the rotary support longitudinal beam 3221 and/or the rotary support cross beam 3222.

Preferably, the clamping bottom frame 333 further comprises a plurality of clamping ribs 3333. The bottom ends of the plurality of clamping ribs 3333 are fixedly connected with the clamping bottom cross beam 3332, and the clamping ribs 3333 are parallel to the clamping bottom longitudinal beam 3331. The clamping bottom longitudinal beams 3331 and the clamping ribs 3333 can move up and down between the adjacent roller shaft gaps on the transverse conveying roller bed 13.

Preferably, the clamping bottom frame beam 333 is further provided with a stopper mechanism 3334. The catch means 3334 are fixedly connected to the clamping bottom longitudinal beams 3331 and/or the clamping ribs 3333. Preferably, the blocking mechanism 3334 is one of a blocking plate, a blocking strip and a blocking rod.

Preferably, the blocking mechanism 3334 is a blocking plate with a plurality of grooves at intervals at the lower end, and any one of the grooves can be meshed and matched with any one of the roller shafts in the transverse roller conveyor 13.

Preferably, a plurality of grooves are arranged on the clamping bottom cross beam 3332 at intervals, and any groove can be meshed and matched with any roller shaft in the transverse conveying roller table 13.

Preferably, the automatic rotary discharging device 3 further includes a sealing cover 34, and the sealing cover 34 is entirely covered above the rotary driving mechanism 31, the rotary support 32, and the rotary automatic clamping mechanism 33.

Preferably, the automatic rotary discharging device 3 further comprises a discharging chute 35, and the discharging chute 35 has a hopper-type structure with a wide top and a narrow bottom. The discharge chute 35 is located entirely below the rotary drive mechanism 31, the rotary bracket 32, the rotary automatic clamping mechanism 33, and has an upper end opening corresponding to a lower end opening of the seal cover 34. A discharge opening 351 is arranged below the discharge chute 35. Preferably, the discharge opening 351 is a vacuum discharge opening.

Preferably, the automatic rotary unloading device 3 further comprises a gas blowing device 36. The gas blowing device 36 includes a nozzle 361 and a gas pipe 362. The nozzle 361 is disposed inside the discharging chute 35 and located right below the rotary automatic clamping mechanism 33 after horizontal rotation. The air pipe 362 is communicated with the nozzle 361 after passing through the wall of the discharge chute 35.

Preferably, a movable access door 341 is disposed on a side wall and/or a top wall of the sealing cover 34.

Preferably, the number of the nozzles 361 is 1 to 100, preferably 3 to 80, and more preferably 5 to 50.

Preferably, the conveying device 1 further comprises a turning conveying roller way 14 and a return conveying roller way 15. The turning rollgang 14 is located at the downstream of the transverse rollgang 13, and the front end of the turning rollgang 14 is connected with the tail end of the transverse rollgang 13. The return rollgang 15 is located at the downstream of the turning rollgang 14, and the front end of the return rollgang 15 is connected with the tail end of the turning rollgang 14. The conveying direction of the return rollgang 15 is opposite to the conveying direction of the first longitudinal rollgang 11.

Preferably, the system further comprises a third separate photoelectric switch 403. The third photoelectric switch 403 is arranged downstream of the lateral roller conveyor 13. Preferably, the third separation photoelectric switch 403 is located above the last roll shaft in the lateral transfer roller table 13.

Preferably, the parts of the automatic leveling device 2 and the automatic rotary discharging device 3, which are in contact with the saggar 5, are coated with heat-resistant flexible members. Preferably, the heat-resistant flexible member is heat-resistant fluororubber.

Example 1

As shown in fig. 1, an automatic discharging system for saggars of roller kilns comprises: a conveying device 1, an automatic leveling device 2 and an automatic rotary unloading device 3. The conveying device 1 comprises a first longitudinal conveying roller way 11, a second longitudinal conveying roller way 12 and a transverse conveying roller way 13. The second longitudinal rollgang 12 is arranged at the downstream of the first longitudinal rollgang 11, and the front end of the second longitudinal rollgang 12 is connected with the tail end of the first longitudinal rollgang 11. The transverse rollgang 13 is arranged at the downstream of the second longitudinal rollgang 12, and the tail end of the second longitudinal rollgang 12 is connected with the inner side of the front end of the transverse rollgang 13. The automatic leveling device 2 is arranged at the side of the first longitudinal roller conveyor 11. The automatic rotary discharging device 3 is arranged at the upstream of the transverse conveying roller way 13.

Example 2

Example 1 is repeated, as shown in fig. 2, except that the automatic flattening apparatus 2 includes a first flattening mechanism 21, a second flattening mechanism 22, and a flattening photoelectric switch 23. The first leveling mechanism 21 and the second leveling mechanism 22 are symmetrically arranged on two sides of the first longitudinal roller conveyor 11. The leveling photoelectric switch 23 is disposed at a side of the first longitudinal roller conveyor 11 and above the first longitudinal roller conveyor 11.

Example 3

Embodiment 2 is repeated except that the first leveling mechanism 21 includes a first cylinder 211 and a first push rod 212; the cylinder body of the first air cylinder 211 is fixed on a cross beam at one side of the first longitudinal roller conveyor 11; the piston rod of the first cylinder 211 is vertically connected with the first push rod 212; the axial direction of the first push rod 212 is perpendicular to the roller way axial direction of the first longitudinal roller way 11.

Example 4

Embodiment 3 is repeated except that the second leveling mechanism 22 includes a second cylinder 221 and a second push rod 222; the cylinder body of the second air cylinder 221 is fixed on the side part of the first longitudinal roller conveyor 11 opposite to the first air cylinder 211; the piston rod of the second cylinder 211 is vertically connected with the second push rod 222; the second push rod 222 is parallel to the first push rod 212.

Example 5

Example 4 is repeated except that the system further comprises a first split opto-electronic switch 401 and a second split opto-electronic switch 402. The first separated photoelectric switch 401 is arranged above the upstream of the second longitudinal roller conveyor 12 and close to one end of the first longitudinal roller conveyor 11. The second photoelectric switch 402 is disposed downstream of the second longitudinal roller conveyor 12 and above the last roller shaft of the second longitudinal roller conveyor 12.

Example 6

Example 5 was repeated except that the first split photoelectric switch 401 was spaced from the first fulcrum roll shaft in the second longitudinal rollerway 12 by 0.5 times the length of the sagger 5.

Example 7

Example 5 was repeated except that the first split photoelectric switch 401 was at a distance of 0.6 times the length of the sagger 5 from the first fulcrum roll shaft in the second longitudinal rollerway 12.

Example 8

Example 5 was repeated except that the first split photoelectric switch 401 was at a distance of 0.8 times the length of the sagger 5 from the first fulcrum roll shaft in the second longitudinal rollerway 12.

Example 9

Example 8 was repeated except that the automatic rotary discharging apparatus 3 included a rotary driving mechanism 31, a rotary holder 32, and a rotary automatic gripping mechanism 33.

Example 10

Example 9 is repeated, as shown in fig. 5, except that the rotating bracket 32 includes a rotating shaft 321 and a rotating support frame beam 322, and the rotating support frame beam 322 is fixedly connected to the rotating shaft 321. The rotation shaft 321 is connected to a drive shaft of the rotation drive mechanism 31. The pivoting support frame beam 322 includes 2 pivoting support longitudinal beams 3221 and 2 pivoting support cross beams 3222. The 2 rotating support longitudinal beams 3221 are parallel to the roller axis direction of the transverse roller conveyor 13 and are vertically and fixedly connected to the rotating shaft 321. The 2 rotating support cross beams 3222 are parallel to the rotating shaft 321 and are fixedly connected to the rotating support longitudinal beams 3221. The 2 longitudinal rotating support beams 3221 and the 2 transverse rotating support beams 3222 form a rectangular fixed frame.

Example 11

Embodiment 10 is repeated, as shown in fig. 5, except that the rotary automatic clamping mechanism 33 includes 2 clamp-coupled front links 331, 2 clamp-coupled rear links 332, and a clamp bottom frame 333. The clamping bottom frame beams 333 include 2 clamping bottom stringers 3331 and 1 clamping bottom cross beam 3332. The 2 clamping bottom longitudinal beams 3331 are parallel to the rotary support longitudinal beams 3221 and are each independently located below 2 rotary support longitudinal beams 3221. The clamping bottom beam 3332 is parallel to the rotation support beam 3222 and is located directly below the rotation support beam 3222 at a location near the rotation axis 321. The 2 clamping bottom longitudinal beams 3331 and 1 clamping bottom cross beam 3332 form a rectangular fixed frame with one open end, and the open position of the fixed frame is close to one end of the second longitudinal roller conveyor 12. The front ends of the 2 clamping bottom longitudinal beams 3331 are respectively and independently connected with the two ends of a rotary supporting cross beam 3222 positioned at the front end of the rotary supporting frame beam 322 by the 2 clamping connecting front connecting rods 331 in a movable hinged connection manner. The two ends of the clamping bottom beam 3332 are independently connected to the two ends of the rotating support beam 3222 at the rear end of the rotating support frame 322 by the 2 clamping connection rear connecting rods 332 in a hinged connection. The rotary automatic clamp mechanism 33 is located directly below the rotary support 32. The rotary automatic clamping mechanism 33 and the rotary bracket 32 form a hollow square box structure.

Example 12

Embodiment 11 is repeated, as shown in fig. 5, except that the rotating support frame 322 further comprises a plurality of support ribs 3222. Two ends of the plurality of supporting ribs 3222 are respectively and fixedly connected with the rotary supporting longitudinal beam 3221 and the rotary supporting cross beam 3222.

Example 13

Embodiment 12 is repeated, as shown in fig. 5, except that the clamping bottom frame 333 further comprises a plurality of clamping ribs 3333. The bottom ends of the plurality of clamping ribs 3333 are fixedly connected with the clamping bottom cross beam 3332, and the clamping ribs 3333 are parallel to the clamping bottom longitudinal beam 3331. The clamping bottom longitudinal beams 3331 and the clamping ribs 3333 can move up and down between the adjacent roller shaft gaps on the transverse conveying roller bed 13.

Example 14

Example 13 is repeated except that the clamping bottom frame rail 333 is also provided with a catch mechanism 3334. The catch means 3334 is fixedly connected to the clamping bottom longitudinal beam 3331 and the clamping ribs 3333. The blocking mechanism 3334 is a baffle.

Example 15

Example 13 is repeated except that the clamping bottom frame rail 333 is also provided with a catch mechanism 3334. The catch means 3334 is fixedly connected to the clamping bottom longitudinal beam 3331 and the clamping ribs 3333. The grid blocking mechanism 3334 is a blocking strip.

Example 16

Example 14 is repeated, as shown in fig. 3, except that the blocking mechanism 3334 is a baffle plate having a plurality of grooves at intervals at the lower end, and any one of the grooves can be engaged with any one of the roll shafts in the transverse roller conveyor 13.

Example 17

Embodiment 16 is repeated, as shown in fig. 2, except that the automatic rotary discharging device 3 further comprises a sealing cover 34, and the sealing cover 34 is integrally covered above the rotary driving mechanism 31, the rotary bracket 32 and the rotary automatic clamping mechanism 33.

Example 18

Example 17 was repeated, as shown in fig. 1, except that the automatic rotary discharging apparatus 3 further comprises a discharging chute 35, and the discharging chute 35 has a structure of a hopper type with a wide upper part and a narrow lower part. The discharge chute 35 is located entirely below the rotary drive mechanism 31, the rotary bracket 32, the rotary automatic clamping mechanism 33, and has an upper end opening corresponding to a lower end opening of the seal cover 34. A discharge opening 351 is arranged below the discharge chute 35. The discharge opening 351 is a vacuum discharge opening.

Example 19

Example 18 was repeated except that the automatic rotary discharging device 3 further included a gas blowing device 36. The gas blowing device 36 includes a nozzle 361 and a gas pipe 362. The nozzle 361 is disposed inside the discharging chute 35 and located right below the rotary automatic clamping mechanism 33 after horizontal rotation. The air pipe 362 is communicated with the nozzle 361 after passing through the wall of the discharge chute 35.

Example 20

Example 19 is repeated except that the side walls and/or the top wall of the sealing cover 34 are provided with movable access doors 341.

Example 21

Example 20 was repeated except that the number of the nozzles 361 was 3.

Example 22

Example 20 was repeated except that the number of the nozzles 361 was 6.

Example 23

Example 22 is repeated, as shown in fig. 2, except that the conveyor 1 further comprises a turning rollerway 14 and an enter rollerway 15. The turning rollgang 14 is located at the downstream of the transverse rollgang 13, and the front end of the turning rollgang 14 is connected with the tail end of the transverse rollgang 13. The return rollgang 15 is located at the downstream of the turning rollgang 14, and the front end of the return rollgang 15 is connected with the tail end of the turning rollgang 14. The conveying direction of the return rollgang 15 is opposite to the conveying direction of the first longitudinal rollgang 11.

Example 24

Example 23 is repeated except that the system further comprises a third separate opto-electronic switch 403. The third photoelectric switch 403 is arranged downstream of the lateral roller conveyor 13. The third separation photoelectric switch 403 is located above the last roller shaft in the lateral roller conveyor 13.

Example 25

Example 24 was repeated except that the parts of the automatic leveling device 2 and the automatic rotary discharging device 3 which were in contact with the sagger 5 were each covered with a heat-resistant flexible member.

Example 26

Example 25 was repeated except that the heat-resistant flexible member was heat-resistant fluororubber.

Example 27

Example 26 was repeated except that the number of single-row saggers 5 was 3.

Example 28

Example 27 was repeated except that the number of single-row sagger 5 was 5.

Method example 1

The length of the first longitudinal roller conveyor 11 is 5m, the effective width is 1.2m, and the conveying speed is 0.05 m/s.

The length of the second longitudinal rollgang 12 is 1.5m, the effective width is 1.2m, and the slow conveying speed is 0.05 m/s. The fast conveying speed was 0.5 m/s.

The length of the transverse conveying roller table 13 is 1.7m, the effective width is 500mm, the initial state is a stop state, and the conveying speed in the conveying state is 0.5 m/s.

The dimensions of the sagger 5 are: 270mm long, 270mm wide and 70mm high. The loading of a single sagger is 2 kg; the number of single-row saggars is 3.

Leveling: contain the casket-like bowl 5 of material and carry through first longitudinal rollgang 11 after coming out from the roller kilns, carry out the row in the transverse direction of first longitudinal rollgang 11 and carry, when single-row casket-like bowl 5 carries on first longitudinal rollgang 11 and just enters into between automatic leveling device 2's first mechanism 21 and the second mechanism 22 that pushes away the paper-back edition completely, the light of flattening photoelectric switch 23 is blockked by single-row casket-like bowl 5 this moment, then start first mechanism 21 and the second mechanism 22 that pushes away the paper-back edition of pushing away simultaneously and push away the paper-back edition to single-row casket-like bowl 5 in the transverse direction promptly, make between the lateral wall of single-row casket-like bowl 5 and the lateral wall closely laminate. Then, the first leveling mechanism and the second leveling mechanism return to the initial contraction state immediately.

A separation stage: continuously conveying the single-row sagger 5 to the front end of a second longitudinal conveying roller way 12, and simultaneously installing a pair of first photoelectric separation switches at a position which is 150mm away from a first supporting roller shaft in the second longitudinal conveying roller way 12; the single-row sagger 5 in the first row enters the second longitudinal conveying roller way 12 to continue to be conveyed at the original speed until the single-row sagger 5 moves to the first photoelectric separation switch, light rays of the first photoelectric separation switch are blocked, the conveying speed of the second longitudinal conveying roller way 12 is immediately accelerated, and the single-row sagger 5 is quickly conveyed to the transverse conveying roller way 13 to wait for unloading; and when the second photoelectric separation switch positioned at the last roller way on the second longitudinal roller way 12 detects that the single-row sagger 5 completely passes through, recovering the conveying speed of the second longitudinal roller way 12 to be in the initial state. And simultaneously starting the automatic rotary discharging device 3 to discharge the single-row saggars 5.

A discharging stage: the clamping bottom longitudinal beam 3331 and the clamping ribs 3333 of the clamping bottom frame beam 333 of the automatic rotary unloading device 3 move upwards from the gap between the roller shafts of the transverse conveying roller way 13 to lift the single-row sagger 5 in a rotating way; in the process of rotating and lifting, under the action of gravity, the single-row sagger 5 slowly approaches the blocking mechanism 3334, and meanwhile, the clamping bottom frame beam 333 slowly moves downwards in an asymptotic dislocation way relative to the rotating support frame beam 322 under the assistance of the 2 clamping connection front connecting rods 331 and the 2 clamping connection rear connecting rods 332; when the rotating bracket 32 and the rotary automatic clamping mechanism 33 rotate to 90 degrees, the front end wall surface of the single-row sagger 5 is tightly attached to the blocking mechanism 3334, the clamping ribs 3333 clamping the bottom frame beam 333 are tightly attached to the bottom surface of the single-row sagger 5, and the single-row sagger 5 is firmly clamped between the clamping bottom frame beam 333 and the rotary supporting frame beam 322; the rotary bracket 32 and the rotary automatic clamping mechanism 33 continue to turn over to 180 degrees, and materials in the single-row sagger 5 are poured into the discharge chute 35; simultaneously starting the gas injection device 36 to inject gas into the inverted single-row saggars 5, wherein each saggar 5 is provided with two corresponding nozzles 361; so that the residual materials in the bowl bodies of the single-row saggars 5 all fall into the discharge chute 35. The single-row empty sagger 5 after unloading is reversely turned over for 180 degrees through the rotary bracket 32 and the rotary automatic clamping mechanism 33, and the single-row empty sagger is sent back to the transverse conveying roller table 13; in the process, under the action of gravity, the clamping bottom frame beam 333 slowly moves downwards in a gradually-distant staggered manner relative to the rotating support frame beam 322 with the assistance of the 2 clamping connection front connecting rods 331 and the 2 clamping connection rear connecting rods 332; when the rotary support 32 and the rotary automatic gripping mechanism 33 are rotated back to 0 °, the gripping bottom frame beams 333 and the rotary support frame beams 322 have completely loosened the single-evacuation sagger 5 and recovered.

And (3) conveying empty saggars: when the automatic rotary discharging device returns to the 0-degree position, a transverse conveying roller way 13 is started to convey the single-emptying sagger 5 to a return conveying roller way 15 through a turning conveying roller way 14; and after the third separation photoelectric switch 403 at the last roll shaft of the transverse conveying roll table 13 detects that the single-emptying sagger 5 completely passes through, closing the transverse conveying roll table 13.

And continuously conveying a new row of single-row saggers 5 containing materials to a transverse conveying roller way 13 through a second longitudinal conveying roller way 12 to carry out next-round unloading operation.

Method example 2

The length of the first longitudinal roller conveyor 11 is 5m, the effective width is 1.5m, and the conveying speed is 0.05 m/s.

The length of the second longitudinal rollgang 12 is 1.5m, the effective width is 1.5m, and the slow conveying speed is 0.05 m/s. The fast conveying speed was 0.5 m/s.

The length of the transverse conveying roller table 13 is 1.7m, the effective width is 500mm, the initial state is a stop state, and the conveying speed in the conveying state is 0.5 m/s.

The dimensions of the sagger 5 are: 270mm long, 270mm wide and 70mm high. The loading of a single sagger is 2 kg; the number of single-row saggars is 4.

Leveling: carry the sagger 5 that contains the material through first vertical rollgang 11 after coming out from the roller kilns, carry in row in the transverse direction of first vertical rollgang 11, carry on when single sagger 5 carries on first vertical rollgang 11 and just enters into between automatic leveling device 2's first mechanism 21 and the second mechanism 22 that pushes away the paper-back edition completely, the light of flattening photoelectric switch 23 is blockked by single sagger 5 this moment, then start first mechanism 21 and the second mechanism 22 that pushes away the paper-back edition simultaneously and push away the paper-back edition to single sagger 5 in the transverse direction, make between the lateral wall of single sagger 5 and the lateral wall closely laminate. Then, the first leveling mechanism and the second leveling mechanism return to the initial contraction state immediately.

A separation stage: continuously conveying the single-row sagger 5 to the front end of a second longitudinal conveying roller way 12, and simultaneously installing a pair of first photoelectric separation switches at a position which is 200mm away from a first supporting roller shaft in the second longitudinal conveying roller way 12; the single-row sagger 5 in the first row enters the second longitudinal conveying roller way 12 to continue to be conveyed at the original speed until the single-row sagger 5 blocks the light of the first photoelectric separation switch, the conveying speed of the second longitudinal conveying roller way 12 is immediately accelerated, and the single-row sagger 5 is quickly conveyed to the transverse conveying roller way 13 to wait for unloading; and when the second photoelectric separation switch positioned at the last roller way on the second longitudinal roller way 12 detects that the single-row sagger 5 completely passes through, recovering the conveying speed of the second longitudinal roller way 12 to be in the initial state. And simultaneously starting the automatic rotary discharging device 3 to discharge the single-row saggars 5.

A discharging stage: the clamping bottom longitudinal beam 3331 and the clamping ribs 3333 of the clamping bottom frame beam 333 of the automatic rotary unloading device 3 move upwards from the gap between the roller shafts of the transverse conveying roller way 13 to lift the single-row sagger 5 in a rotating way; in the process of rotating and lifting, under the action of gravity, the single-row sagger 5 slowly approaches the blocking mechanism 3334, and meanwhile, the clamping bottom frame beam 333 slowly moves downwards in an asymptotic dislocation way relative to the rotating support frame beam 322 under the assistance of the 2 clamping connection front connecting rods 331 and the 2 clamping connection rear connecting rods 332; when the rotating bracket 32 and the rotary automatic clamping mechanism 33 rotate to 90 degrees, the front end wall surface of the single-row sagger 5 is tightly attached to the blocking mechanism 3334, the clamping ribs 3333 clamping the bottom frame beam 333 are tightly attached to the bottom surface of the single-row sagger 5, and the single-row sagger 5 is firmly clamped between the clamping bottom frame beam 333 and the rotary supporting frame beam 322; the rotating bracket 32 and the rotary automatic clamping mechanism 33 continue to turn over to 170 degrees, and materials in the single-row sagger 5 are poured into a discharge chute 35; simultaneously starting the gas injection device 36 to inject gas into the inverted single-row saggars 5, wherein each saggar 5 is provided with two corresponding nozzles 361; so that the residual materials in the bowl bodies of the single-row saggars 5 all fall into the discharge chute 35. The single-row empty box bowl 5 after unloading is reversely turned over for 170 degrees through the rotary bracket 32 and the rotary automatic clamping mechanism 33; returning the single-evacuation sagger to the transverse conveying roller table 13; in the process, under the action of gravity, the clamping bottom frame beam 333 slowly moves downwards in a gradually-distant staggered manner relative to the rotating support frame beam 322 with the assistance of the 2 clamping connection front connecting rods 331 and the 2 clamping connection rear connecting rods 332; when the rotary support 32 and the rotary automatic gripping mechanism 33 are rotated back to 0 °, the gripping bottom frame beams 333 and the rotary support frame beams 322 have completely loosened the single-evacuation sagger 5 and recovered.

And (3) conveying empty saggars: when the automatic rotary discharging device returns to the 0-degree position, a transverse conveying roller way 13 is started to convey the single-emptying sagger 5 to a return conveying roller way 15 through a turning conveying roller way 14; and after the third separation photoelectric switch 403 at the last roll shaft of the transverse conveying roll table 13 detects that the single-emptying sagger 5 completely passes through, closing the transverse conveying roll table 13.

And continuously conveying a new row of single-row saggers 5 containing materials to a transverse conveying roller way 13 through a second longitudinal conveying roller way 12 to carry out next-round unloading operation.

Claims (10)

1. The utility model provides a roller kilns sagger automatic discharge system which characterized in that: the system comprises a conveying device (1), an automatic leveling device (2) and an automatic rotary discharging device (3); the conveying device (1) comprises a first longitudinal conveying roller way (11), a second longitudinal conveying roller way (12) and a transverse conveying roller way (13); the second longitudinal conveying roller way (12) is arranged at the downstream of the first longitudinal conveying roller way (11), and the front end of the second longitudinal conveying roller way (12) is connected with the tail end of the first longitudinal conveying roller way (11); the transverse conveying roller way (13) is arranged at the downstream of the second longitudinal conveying roller way (12), and the tail end of the second longitudinal conveying roller way (12) is connected with the inner side of the front end of the transverse conveying roller way (13); the automatic leveling device (2) is arranged on the side part of the first longitudinal conveying roller way (11); the automatic rotary discharging device (3) is arranged at the downstream of the second longitudinal conveying roller way (12).

2. The system of claim 1, wherein: the automatic leveling device (2) comprises a first leveling mechanism (21), a second leveling mechanism (22) and a leveling photoelectric switch (23); the first leveling mechanism (21) and the second leveling mechanism (22) are symmetrically arranged on two sides of the first longitudinal conveying roller way (11); the leveling photoelectric switch (23) is arranged on the side of the first longitudinal roller conveyor (11) and above the first longitudinal roller conveyor (11).

3. The system of claim 2, wherein: the first leveling mechanism (21) comprises a first air cylinder (211) and a first push rod (212); the cylinder body of the first air cylinder (211) is fixed on a cross beam at one side of the first longitudinal conveying roller way (11); a piston rod of the first air cylinder (211) is vertically connected with a first push rod (212); the axial direction of the first push rod (212) is vertical to the axial direction of the roller way of the first longitudinal conveying roller way (11);

the second leveling mechanism (22) comprises a second air cylinder (221) and a second push rod (222); the cylinder body of the second air cylinder (221) is fixed on the side part of the first longitudinal conveying roller way (11) opposite to the first air cylinder (211); a piston rod of the second air cylinder (211) is vertically connected with a second push rod (222); the second push rod (222) and the first push rod (212) are arranged in parallel.

4. The system according to any one of claims 1-3, wherein: the system also comprises a first split photoelectric switch (401) and a second split photoelectric switch (402); the first separation photoelectric switch (401) is arranged above the upstream of the second longitudinal roller conveyor (12) and close to one end of the first longitudinal roller conveyor (11); the second separation photoelectric switch (402) is arranged at the downstream of the second longitudinal roller conveyor (12), is positioned above a roller shaft at the tail end of the second longitudinal roller conveyor (12), and is preferably positioned above the last roller shaft of the second longitudinal roller conveyor (12);

preferably, the first separate photoelectric switch (401) is at a distance of 0.25 to 1 times the length of the sagger (5) from the first fulcrum roll axis in the second longitudinal rollerway (12), preferably at a distance of 0.3 to 0.9 times the length of the sagger (5), more preferably at a distance of 0.5 to 0.8 times the length of the sagger (5).

5. The system according to any one of claims 1-4, wherein: the automatic rotary discharging device (3) comprises a rotary driving mechanism (31), a rotary bracket (32) and a rotary automatic clamping mechanism (33);

the rotating bracket (32) comprises a rotating shaft (321) and a rotating support frame beam (322), and the rotating support frame beam (322) is fixedly connected with the rotating shaft (321); the rotating shaft (321) is connected with a driving shaft of the rotating driving mechanism (31); the rotary supporting frame beam (322) comprises 2 rotary supporting longitudinal beams (3221) and 2 rotary supporting cross beams (3222); the 2 rotating support longitudinal beams (3221) are parallel to the roll shaft direction of the transverse conveying roller way (13) and are vertically and fixedly connected with a rotating shaft (321); 2 rotary supporting cross beams (3222) are parallel to the rotary shaft (321) and fixedly connected with the rotary supporting longitudinal beams (3221); 2 rotating support longitudinal beams (3221) and 2 rotating support cross beams (3222) form a rectangular fixed frame;

the rotary automatic clamping mechanism (33) comprises 2 clamping connection front connecting rods (331), 2 clamping connection rear connecting rods (332) and a clamping bottom frame beam (333); the clamping bottom frame beam (333) comprises 2 clamping bottom longitudinal beams (3331) and 1 clamping bottom cross beam (3332); the 2 clamping bottom longitudinal beams (3331) are parallel to the rotary supporting longitudinal beams (3221) and are respectively and independently positioned below the 2 rotary supporting longitudinal beams (3221); the clamping bottom cross beam (3332) is parallel to the rotating supporting cross beam (3222) and is positioned right below the rotating supporting cross beam (3222) at a position close to the rotating shaft (321); the 2 clamping bottom longitudinal beams (3331) and the 1 clamping bottom cross beam (3332) form a rectangular fixed frame with one open end, and the open position of the fixed frame is positioned at one end close to the second longitudinal conveying roller way (12); the front ends of the 2 clamping bottom longitudinal beams (3331) are respectively and independently connected with the two ends of a rotary supporting cross beam (3222) positioned at the front end of the rotary supporting frame beam (322) by the 2 clamping connecting front connecting rods (331) in a movable hinged connection mode; the two ends of the clamping bottom cross beam (3332) are respectively and independently connected with the two ends of a rotary supporting cross beam (3222) positioned at the rear end of the rotary supporting frame beam (322) by 2 clamping and connecting rear connecting rods (332) in a movable hinged connection mode; the rotary automatic clamping mechanism (33) is positioned right below the rotary bracket (32); the rotary automatic clamping mechanism (33) and the rotary bracket (32) form a hollow square box structure;

the rotary supporting frame beam (322) also comprises a plurality of supporting ribs (3222); two ends of the plurality of supporting ribs (3222) are respectively and fixedly connected with the rotary supporting longitudinal beams (3221) and/or the rotary supporting cross beams (3222);

the clamping bottom frame beam (333) also comprises a plurality of clamping ribs (3333); the bottom ends of the clamping ribs (3333) are fixedly connected with the clamping bottom cross beam (3332), and the clamping ribs (3333) are parallel to the clamping bottom longitudinal beam (3331); the clamping bottom longitudinal beams (3331) and the clamping ribs (3333) can move up and down between the adjacent roll shaft gaps on the transverse conveying roller way (13);

a grid blocking mechanism (3334) is also arranged on the clamping bottom frame beam (333); the grid blocking mechanism (3334) is fixedly connected with the clamping bottom longitudinal beam (3331) and/or the clamping rib (3333); preferably, the blocking mechanism (3334) is one of a baffle, a blocking strip and a blocking rod;

preferably, the grid blocking mechanism (3334) is a baffle plate with a plurality of grooves at the lower end at intervals, and any groove can be meshed and matched with any roller shaft in the transverse conveying roller way (13); and/or

A plurality of grooves are arranged on the clamping bottom cross beam (3332) at intervals, and any groove can be meshed and matched with any roller shaft in the transverse conveying roller way (13).

6. The system of claim 5, wherein: the automatic rotary discharging device (3) also comprises a sealing cover (34), and the sealing cover (34) is integrally covered above the rotary driving mechanism (31), the rotary bracket (32) and the rotary automatic clamping mechanism (33);

the automatic rotary discharging device (3) also comprises a discharging groove (35), and the discharging groove (35) is of a groove hopper type structure with a wide upper part and a narrow lower part; the discharge chute (35) is integrally positioned below the rotary driving mechanism (31), the rotary bracket (32) and the rotary automatic clamping mechanism (33), and the upper end opening of the discharge chute corresponds to the lower end opening of the sealing cover (34); a discharge opening (351) is formed below the discharge chute (35); preferably, the discharge opening (351) is a vacuum discharge opening.

7. The system of claim 6, wherein: the automatic rotary unloading device (3) also comprises a gas blowing device (36); the gas blowing device (36) includes a nozzle (361) and a gas pipe (362); the nozzle (361) is arranged in the discharging chute (35) and is positioned right below the rotary automatic clamping mechanism (33) after horizontal rotation; the air pipe (362) penetrates through the wall of the discharge chute (35) and is communicated with the nozzle (361);

preferably, the side wall and/or the top wall of the sealing cover (34) are/is provided with a movable access door (341);

preferably, the number of the nozzles (361) is 1 to 100, preferably 3 to 80, more preferably 5 to 50.

8. The system according to any one of claims 1-7, wherein: the conveying device (1) also comprises a turning conveying roller way (14) and a return conveying roller way (15); the turning conveying roller way (14) is positioned at the downstream of the transverse conveying roller way (13), and the front end of the turning conveying roller way (14) is connected with the tail end of the transverse conveying roller way (13); the return rollgang (15) is positioned at the downstream of the turning rollgang (14), and the front end of the return rollgang (15) is connected with the tail end of the turning rollgang (14); the conveying direction of the return conveying roller way (15) is opposite to the conveying direction of the first longitudinal conveying roller way (11);

preferably, the system further comprises a third separate photoelectric switch (403); the third separation photoelectric switch (403) is arranged at the downstream of the transverse conveying roller way (13); preferably, the third separation photoelectric switch (403) is positioned above the last roll shaft in the transverse conveying roller way (13);

preferably, heat-resistant flexible parts are coated on parts of the automatic leveling device (2) and the automatic rotary discharging device (3) which are in contact with the saggar (5); preferably, the heat-resistant flexible member is heat-resistant fluororubber.

9. Method for automatic discharging of roller kiln saggers or roller kiln saggers using a system according to any one of claims 1 to 8, characterized in that it comprises the following steps:

1) after the sagger (5) filled with materials comes out of the roller kiln, the sagger (5) is conveyed to the front end of a second longitudinal conveying roller way (12) through a first longitudinal conveying roller way (11), then the sagger (5) in the front row is separated through the second longitudinal conveying roller way (12), and the sagger (5) in the front row is quickly conveyed to a transverse conveying roller way (13) to wait for unloading;

2) when the saggars (5) containing materials are conveyed on the first longitudinal conveying roller way (11), the saggars (5) in the same row are pushed to be flat and arranged through the automatic leveling device (2), so that the side walls of the saggars (5) in the same row are tightly attached to each other;

3) the single-row sagger (5) to be unloaded which is conveyed to the transverse conveying roller way (13) is automatically overturned and unloaded by the automatic rotary unloading device (3); the single-row empty box bowls (5) after unloading are sent back to the transverse conveying roller way (13) and then conveyed to a return line; meanwhile, a new row of single-row saggers (5) containing materials are continuously conveyed to a transverse conveying roller way (13) through a second longitudinal conveying roller way (12) to wait for discharging, and the process is circulated;

preferably, the method further comprises the steps of:

4) in the process of discharging the single-row saggars (5) through the automatic rotary discharging device (3), the gas injection device (36) is adopted to inject gas into the single-row saggars (5) which are overturned by 180 degrees (preferably 170 degrees), so that residual materials in the single-row saggars (5) can fall off.

10. The method of claim 9, wherein:

the step 1) is specifically as follows: after the saggars (5) containing the materials come out of the roller kiln, the saggars (5) containing the materials are conveyed to the front end of a second longitudinal conveying roller way (12) in a row unit through a first longitudinal conveying roller way (11); then when the single-row sagger (5) reaches the detection position of the first separation photoelectric switch (401), the conveying speed of the second longitudinal conveying roller way (12) is increased, and the single-row sagger (5) containing materials is conveyed to the transverse conveying roller way (13) to wait for unloading; when a second separation photoelectric switch (402) positioned at the last roll shaft of a second longitudinal conveying roller way (12) detects that the single-row saggers (5) completely pass through, the conveying speed of the second longitudinal conveying roller way (12) is recovered to be consistent with that of the first longitudinal conveying roller way (11), and at the moment, the foremost end of the single-row saggers (5) in the next row does not reach or just reaches the front end of the second longitudinal conveying roller way (12); and/or

The step 2) is specifically as follows: when the saggars (5) containing materials are conveyed on a first longitudinal conveying roller way (11) in a row at a constant speed, when a leveling photoelectric switch (23) on the first longitudinal conveying roller way (11) detects that the saggars (5) in the single row start to pass through, the saggars (5) in the single row are just positioned between a first leveling mechanism (21) and a second leveling mechanism (22) of an automatic leveling device (2), the first leveling mechanism (21) and the second leveling mechanism (22) are started simultaneously, and the first leveling mechanism (21) and the second leveling mechanism (22) simultaneously level and arrange the saggars (5) in the same row from two sides of the first longitudinal conveying roller way (11) so that the side walls and the side walls of the saggars (5) in the same row are tightly attached; and/or

The step 3) is specifically as follows: after a second separation photoelectric switch (402) positioned at the last roll shaft of a second longitudinal conveying roll table (12) detects that the single-row sagger (5) completely passes through, a rotary driving mechanism (31) is started to drive a rotary support (32) and a rotary automatic clamping mechanism (33) to turn the single-row sagger (5) for 180 degrees (preferably 170 degrees) in a sealing cover (34) for discharging; in the process that the rotary support (32) and the rotary automatic clamping mechanism (33) do 180-degree (preferably 170-degree) overturning motion, a clamping bottom longitudinal beam (3331) and a clamping rib (3333) which clamp a bottom frame beam (333) move upwards from a gap between roll shafts of the transverse conveying roller way (13) to lift the single-row sagger (5) in a rotating mode; in the process of rotating and lifting, the single-row saggars (5) slowly approach the grid blocking mechanism (3334), and meanwhile, the clamping bottom frame beam (333) slowly moves downwards in an asymptotic dislocation mode relative to the rotating support frame beam (322) under the assistance of 2 clamping connection front connecting rods (331) and 2 clamping connection rear connecting rods (332); when the rotary support (32) and the rotary automatic clamping mechanism (33) rotate to 90 degrees, the front end wall surface of the single-row sagger (5) is tightly attached to the blocking mechanism (3334), the clamping ribs (3333) for clamping the bottom frame beam (333) are tightly attached to the bottom surface of the single-row sagger (5), and the single-row sagger (5) is firmly clamped between the clamping bottom frame beam (333) and the rotary supporting frame beam (322); the rotary bracket (32) and the rotary automatic clamping mechanism (33) are continuously turned to 180 degrees (preferably 170 degrees), and the materials in the single-row sagger (5) are poured into a discharge chute (35); the discharged single-row empty box bowls (5) are reversely turned for 180 degrees (preferably 170 degrees) through a rotary support (32) and a rotary automatic clamping mechanism (33) and then are sent back to a transverse conveying roller way (13), and in the process, a clamping bottom frame beam (333) slowly moves downwards in a gradually-distant staggered manner relative to a rotary supporting frame beam (322) under the assistance of 2 clamping connection front connecting rods (331) and 2 clamping connection rear connecting rods (332); when the rotary bracket (32) and the rotary automatic clamping mechanism (33) rotate to return to 0 degree, the clamping bottom frame beam (333) and the rotary supporting frame beam (322) are completely loosened to single-emptying saggars (5) and return to the original state; starting a transverse conveying roller way (13) to convey the single-evacuation sagger (5) to a return conveying roller way (15) through a turning conveying roller way (14); a third separation photoelectric switch (403) positioned at the last roll shaft of the transverse conveying roll way (13) closes the transverse conveying roll way (13) after detecting that the single-emptying sagger (5) completely passes through; meanwhile, a new row of single-row saggers (5) containing materials are continuously conveyed to a transverse conveying roller way (13) through a second longitudinal conveying roller way (12) to wait for discharging, and the process is circulated; and/or

The step 4) is specifically as follows: when the single-row sagger (5) is turned over to 180 degrees (preferably 170 degrees) by the rotary support (32) and the rotary automatic clamping mechanism (33), starting the gas injection device (36) to inject gas into the inverted single-row sagger (5), so that residual materials in the sagger of the single-row sagger (5) all fall into the discharge chute (35);

preferably, the number of single-row sagger (5) is 1-12, preferably 2-8, more preferably 3-5.

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