CN210602759U - Automatic feeding and discharging device for tunnel kiln - Google Patents
Automatic feeding and discharging device for tunnel kiln Download PDFInfo
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- CN210602759U CN210602759U CN201921325023.4U CN201921325023U CN210602759U CN 210602759 U CN210602759 U CN 210602759U CN 201921325023 U CN201921325023 U CN 201921325023U CN 210602759 U CN210602759 U CN 210602759U
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Abstract
The utility model relates to the field of tunnel kiln equipment, in particular to an automatic feeding and discharging device for a tunnel kiln, which comprises a PLC controller, an electric hydraulic push rod, a first inductor, a second inductor, a front kiln door and a rear kiln door; a front kiln door and a rear kiln door are respectively arranged at a feed inlet and a discharge outlet of the tunnel kiln body, an electric hydraulic push rod is arranged right in front of the front kiln door, and a pushing end of the electric hydraulic push rod points to the feed inlet of the tunnel kiln body; the PLC is arranged beside the electric hydraulic push rod, the first inductor and the second inductor are respectively electrically connected with the input end of the PLC, and the electric hydraulic push rod, the front kiln door and the rear kiln door are respectively electrically connected with the output end of the PLC. The sensors are arranged at the inlet and outlet of the tunnel kiln, and the automatic inlet and outlet of the kiln car are realized through the PLC; the push plate is arranged, so that the stress surface of the kiln car is increased, and the safety during feeding can be improved; and the anti-collision piece is arranged, so that the damage to parts in the kiln body of the tunnel kiln caused by overhigh adobe can be avoided.
Description
Technical Field
The utility model relates to a tunnel cave equipment field, concretely relates to tunnel cave is with automatic business turn over material device's technical field of structure.
Background
The tunnel kiln is generally a long straight tunnel with fixed walls and vaults on both sides and at the top, and a kiln car running on a track laid at the bottom. The combustion equipment is arranged at two sides of the middle part of the tunnel kiln to form a fixed high-temperature zone, namely a burning zone, high-temperature flue gas generated by combustion flows towards the kiln head along the tunnel under the action of a chimney or an induced draft fan at the front end of the tunnel kiln, and simultaneously gradually preheats products entering the kiln, and the section forms a preheating zone of the tunnel kiln. Blowing cold air into the tail of the tunnel kiln to cool the products in the later section of the tunnel kiln, pumping out the blown cold air after the products are heated and then feeding the cold air into the drying kiln as a heat source for drying green bodies, and forming a cooling zone of the tunnel kiln.
The tunnel kiln is usually arranged to be long in length, the time period for average firing of refractory bricks of a kiln car is long, a car of bricks is usually fired within 20-65 minutes according to different firing materials, if personnel are arranged to control advancing and discharging, at least one person needs to keep on duty, a long idle period occurs, and labor cost is wasted; and the charging and discharging operations can not be carried out in time without independently arranging the responsibility of personnel.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tunnel cave is with automatic device of input and output material, the operation of advancing, going out of the kiln car that can realize automatic control tunnel cave improves the degree of automation of tunnel cave, practices thrift the human cost.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the automatic feeding and discharging device for the tunnel kiln comprises a PLC (programmable logic controller), an electric hydraulic push rod, a first inductor, a second inductor, a front kiln door and a rear kiln door; a front kiln door and a rear kiln door are respectively arranged at a feed inlet and a discharge outlet of the tunnel kiln body, an electric hydraulic push rod is arranged right in front of the front kiln door, and a pushing end of the electric hydraulic push rod points to the feed inlet of the tunnel kiln body; a conveying track for conveying kiln cars is arranged in the tunnel kiln body, a first inductor is arranged at a feed inlet of the tunnel kiln body and beside the conveying track of the tunnel kiln body, and an induction end of the first inductor points to the feed inlet far away from the tunnel kiln body; a second inductor is arranged at the discharge outlet of the tunnel kiln body and beside the conveying track of the tunnel kiln body, and the induction end of the second inductor points to the discharge outlet far away from the tunnel kiln body; the PLC is arranged beside the electric hydraulic push rod, the first inductor and the second inductor are respectively electrically connected with the input end of the PLC, and the electric hydraulic push rod, the front kiln door and the rear kiln door are respectively electrically connected with the output end of the PLC.
Furthermore, the pushing end of the electric hydraulic push rod is provided with a push plate, the pushing end of the electric hydraulic push rod is fixedly connected with one side face of the push plate, the other side face of the push plate points to the feed inlet of the tunnel kiln body, and the push plate is arranged vertically.
Furthermore, an anti-collision piece is arranged below the outer side of the front kiln door, the working end of the anti-collision piece points to the electric hydraulic push rod, and the anti-collision piece is electrically connected with the input end of the PLC.
Further, a heat insulation protective cover is arranged outside the first inductor and the second inductor respectively.
Further, a conveyor belt is arranged at the extending position of the conveying track at the discharge port of the tunnel kiln body.
Further, the anti-collision piece is a high-temperature-resistant travel switch.
Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:
1. the sensors are arranged at the inlet and outlet of the tunnel kiln, and the automatic inlet and outlet of the kiln car are realized through the PLC.
2. The push plate is arranged, the stress surface of the kiln car is increased, and the safety during feeding can be improved.
3. And the anti-collision piece is arranged, so that the damage to parts in the kiln body of the tunnel kiln caused by overhigh adobe can be avoided.
4. The conveying belt is arranged at the discharge port, and the conveying belt is controlled by the PLC, so that the kiln car after discharging can be automatically conveyed and processed, and the working efficiency of the device is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another view angle of the present invention.
Fig. 3 is a schematic view of an operating state of the present invention.
Fig. 4 is a schematic view of another working state of the present invention.
Fig. 5 is a schematic view of another working state of the present invention.
In the figure: 1-a PLC controller; 2-electric hydraulic push rod; 3-a first inductor; 4-a second inductor; 5-pushing the plate; 6-a bumper; 7-a conveyor belt; 8-a kiln car ferry vehicle; 10-tunnel kiln body; 11-front kiln door; 12-rear kiln door; 13-kiln car.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
as shown in fig. 1-4, the automatic feeding and discharging device for the tunnel kiln comprises a PLC controller 1, an electric hydraulic push rod 2, a first inductor 3, a second inductor 4, a front kiln door 11 and a rear kiln door 12; a front kiln door 11 and a rear kiln door 12 are respectively arranged at a feed inlet and a discharge outlet of the tunnel kiln body 10, an electric hydraulic push rod 2 is arranged right in front of the front kiln door 11, and a pushing end of the electric hydraulic push rod 2 points to the feed inlet of the tunnel kiln body 10; a conveying track for conveying kiln cars 13 is arranged in the tunnel kiln body 10, a first inductor 3 is arranged at a feed inlet of the tunnel kiln body 10 and beside the conveying track of the tunnel kiln body 10, and an induction end of the first inductor 3 points to the feed inlet far away from the tunnel kiln body 10; a second inductor 4 is arranged at the discharge outlet of the tunnel kiln body 10 and beside the conveying track of the tunnel kiln body 10, and the induction end of the second inductor 4 points to the discharge outlet far away from the tunnel kiln body 10; set up PLC controller 1 by electric hydraulic rod 2, first inductor 3 and second inductor 4 respectively with PLC controller 1's input electrical connection, electric hydraulic rod 2, preceding kiln door 11 and back kiln door 12 respectively with PLC controller 1's output electrical connection.
The tunnel kiln body 10 is a linear tunnel kiln and comprises a kiln body, conveying track equipment in the kiln, a fuel combustion system, ventilation equipment and other necessary working facilities; the front kiln door 11 and the rear kiln door 12 are respectively arranged at the material inlet and the material outlet of the tunnel kiln body 10 and are used for opening or closing the material inlet and the material outlet of the tunnel kiln body 10, the front kiln door 11 and the rear kiln door 12 are lifting type kiln doors, and when the front kiln door 11 and the rear kiln door 12 are both in a closed state, the relative sealing property in the kiln body 10 of the tunnel kiln body can be improved, and the sintering effect is improved; the PLC controller 1 is of the conventional art; the electric hydraulic push rod 2 is a linear push-pull type electric hydraulic push rod, a motor is used as a power source of the electric hydraulic push rod, the pushing end of the electric hydraulic push rod 2 is one end of the push rod, which is far away from the electric hydraulic push rod body, and the length which can be extended by the pushing end of the electric hydraulic push rod 2 is the length which is required when the whole body of the kiln car 13 just enters the tunnel kiln body 10 and does not influence the closing position of the front kiln door 11; the first sensor 3 and the second sensor 4 are laser sensors, are arranged at corresponding positions of a feed inlet and a discharge outlet of the tunnel kiln body 10, are used for detecting whether kiln cars 13 are arranged at the feed inlet and the discharge outlet of the tunnel kiln body 10 or not, and transmit detection signals to the PLC controller 1 for receiving and processing; the PLC 1 outputs and controls the front kiln door 11, the rear kiln door 12 and the electric hydraulic push rod 12 to work.
When the tunnel kiln works, the firing completion time of each kiln car is set to be 50 minutes on the PLC 1, timing is started when the kiln car 13 enters the tunnel kiln body 10, when feeding is needed, the front kiln door 11 and the rear kiln door 12 are in a closed state, the kiln car 13 for loading dry green bricks is arranged on a track at the feeding port of the tunnel kiln body 10, the kiln car 13 is not arranged on the track at the discharging port of the tunnel kiln body 10, and the electric hydraulic push rod 12 is in a closed state; when the 50-minute firing time is counted to 46 minutes, the PLC 1 controls the front kiln door 11 and the rear kiln door 12 to be opened, meanwhile, the PLC 1 receives and processes signals of the first sensor 3 and the second sensor 4, if it is judged that a kiln car 13 exists in front of the front kiln door 11 and no kiln car 13 exists behind the rear kiln door 12, the PLC 1 controls the electric hydraulic push rod 12 to work, the push end of the electric hydraulic push rod 12 is in contact with one side of the kiln car 13, the kiln car 13 is slowly pushed into the tunnel kiln body 10 along a conveying track arranged in the tunnel kiln body 10, the kiln car 13 which is close to the discharge port and completes firing in the tunnel kiln body 10 is pushed out of the tunnel kiln body 10, and when the electric hydraulic push rod 12 extends to the maximum length, the PLC 1 controls the electric hydraulic push rod 12 to work, and the push rod is slowly contracted to the initial position; the PLC 1 controls the front kiln door 11 to descend and close again, and starts to time the firing time; wait to drag away tunnel kiln car 13 that the completion was fired, the back of the discharge gate department of tunnel kiln body 10, second inductor 4 gives PLC controller 1 with the signal transmission that detects and receives the processing, and PLC controller 1 judges tunnel kiln body 10 discharge gate department does not have the kiln car-hour, and the decline of control back kiln door 13 is closed, accomplishes the business turn over material work of tunnel kiln. An operator places a new kiln car 13 for loading dry green bricks at the feed inlet of the tunnel kiln body 10 to wait for the next round of feeding and discharging.
As shown in fig. 2, the working state of waiting for charging and discharging is that the electric hydraulic push rod 2 is in the initial working state, the kiln car 13 is arranged in front of the front kiln door 11, and the kiln car 13 is not arranged behind the rear kiln door 12.
As shown in fig. 3, when the tunnel kiln is in a charging and discharging state, the electric hydraulic push rod 2 operates to push the kiln car 13 into the tunnel kiln body 10 and push the kiln car 13 which is fired in the tunnel kiln body 10 out of the tunnel kiln body 10.
As shown in fig. 4, in the working state during feeding and discharging, the electric hydraulic push rod 2 works to push the kiln car 13 into the tunnel kiln body 10 completely, and push the kiln car 13 which is fired in the tunnel kiln body 10 out of the tunnel kiln body 10.
Preferably, the PLC controller 1 is provided with an alarm indicator lamp, and when the device is abnormal, the PLC controller 1 controls the indicator lamp to be turned on for indicating an operator to process.
One abnormal condition is: and when the time for firing exceeds 5 minutes and the second sensor 4 detects that the kiln car 13 still exists at the discharge port of the tunnel kiln body 10, firing starts at the moment, the rear kiln door 12 cannot be closed, and an operator is prompted to timely pull away the kiln car 13 at the rear kiln door 12 after firing is completed for abnormal conditions.
Another abnormal situation is: wait to fire the time timing and exceed 40 minutes, and first inductor 3 detects that tunnel kiln body 10 feed inlet department does not have kiln car 13, and no new kiln car 13 of waiting to fire waits for the feeding this moment, can lead to this device to in time carry out the business turn over material operation, carries out unusual suggestion, lets operating personnel prepare material to can't carry out business turn over material and influence firing efficiency and firing effect.
Other abnormal conditions are: so that the PLC controller 1 cannot complete the automatic feeding and discharging operation.
Preferably, the push rod of the electric hydraulic push rod 2 is positioned at the same height as the kiln car 13, so that when the electric hydraulic push rod 2 works, the push rod is in contact with the kiln car 13 instead of the green bricks on the kiln car 13, and the pushing effect of the electric hydraulic push rod 2 is affected.
Example 2:
as shown in fig. 1 to 4, the present embodiment optimizes the push rod structure for the above-described embodiment.
This automatic feeding and discharging device for tunnel cave sets up push pedal 5 at the promotion end of electro-hydraulic push rod 2, and electro-hydraulic push rod 2's promotion end and push pedal 5's a side fixed connection, the directional feed inlet of tunnel cave body 10 of another side of push pedal 5, the vertical setting of push pedal 5. The long limit level setting of push pedal 5 for the cuboid iron plate that has certain thickness, iron plate, at the promotion end welding push pedal 5 of electro-hydraulic pressure push rod 2, through push pedal 5 and kiln car 13's automobile body contact, can increase the area of contact with kiln car 13 automobile body, make kiln car 13's atress better even, can promote the result of use of this device.
Example 3:
as shown in fig. 1 to 4, the present embodiment optimizes the crash structure for the above-described embodiment.
This automatic feeding and discharging device for tunnel cave sets up anticollision piece 6 in the outside below of preceding kiln door 11, and the directional electronic hydraulic push rod 2 of working end of anticollision piece 6, anticollision piece 6 and PLC controller 1's input electrical connection. The anti-collision piece 6 is arranged below the front kiln door 11 and can be a high-temperature resistant contact travel switch or a high-temperature resistant non-contact sensor, when the front kiln door 11 is opened, the height of the anti-collision piece 6 is always lower than the height of the highest green brick contained in the tunnel kiln body 10 by 10 cm, in the running process of the device, when the electric hydraulic push rod 2 pushes the kiln car 13 to enter the tunnel kiln body 10, if the height of the dry green bricks stacked on the kiln car 13 is higher than the height of the anti-collision piece 6, when the green bricks approach or contact the anti-collision piece 6, the anti-collision piece 6 works, and transmits the electric signal to the PLC controller 1 for receiving and processing, the PLC controller 1 controls the electric hydraulic push rod 2 to stop working, and lights an alarm indicator lamp to indicate an operator to carry out exception handling, meanwhile, the bricks with too high height are prevented from entering the tunnel kiln, and the facilities in the kiln body are prevented from being recycled.
Example 4:
as shown in fig. 1 to 4, the present embodiment optimizes the heat-insulating protection structure for the above-described embodiments.
This tunnel cave is with automatic business turn over material device sets up thermal-insulated protection casing outside first inductor 3 and second inductor 4 respectively. One embodiment of the heat insulation protective cover is as follows: high temperature resistant thermal-insulated cotton is wrapped up in outside first inductor 3, outside second inductor 4 and the electric wire of being connected with it, when preventing the steam outflow that produces in the tunnel cave, produces the damage to first inductor 3 and second inductor 4. Preferably, the heat insulation protective cover is provided with a corresponding channel so as not to influence the induction work of the inductor.
Example 5:
as shown in fig. 1-5, the present embodiment optimizes the outfeed transport structure for the above described embodiments.
In the automatic feeding and discharging device for the tunnel kiln, a conveyor belt 7 is arranged at the extending part of a conveying track at the discharge port of a tunnel kiln body 10. Conveyer belt 7 can be the crawler-type conveyer belt, sets up in the discharge gate department of tunnel cave body 10, and conveyer belt 7's driving motor is connected with PLC controller 1's output control end electricity simultaneously. When the kiln car conveying device works, when the PLC controller 1 controls the electric hydraulic push rod 2 to push the kiln car 13 into the tunnel kiln body 10, the PLC controller 1 simultaneously controls the conveyor belt 7 to run, the bottom of the kiln car 13 pushed out from the discharge port of the tunnel kiln body 10 can be contacted with the surface of the running conveyor belt 7, the kiln car 13 at the discharge port is simultaneously subjected to outward pushing force and friction traction force of the conveyor belt 7, moves onto the conveyor belt 7, and conveys the fired kiln car 13 to discharge through the conveyor belt 7 for discharging; thereby realize will be released to the tunnel cave outside, accomplish the kiln car 13 of firing and in time handle, can in time close back kiln door 12, promote work efficiency and fire the effect.
Preferably, second inductor 4 sets up the one end that is close to tunnel cave body 10 at conveyer belt 7, and when the ejection of compact, when second inductor 4 detected kiln car 13 and got into conveyer belt 7 completely on, can judge through PLC controller 1 to control back kiln door 12 and close.
Example 6:
as shown in fig. 1, the present embodiment optimizes the bumper structure with respect to the above-described embodiment.
The anti-collision piece 6 in the automatic feeding and discharging device for the tunnel kiln is a high-temperature-resistant travel switch. The high-temperature-resistant travel switch can be a KJT-XW series high-temperature-resistant travel switch manufactured by Nanjing Kaityt electric Limited company, and the highest working bearing temperature can reach 350 ℃, so that the problem of reduction of the using effect caused by overhigh environmental temperature in the long-term use process can be solved.
Preferably, the PLC controller 1 is electrically connected to the tunnel kiln body 10, and is configured to monitor the operation of the tunnel kiln body 10 and control the entering and exiting of the kiln car 13 in real time according to the operating status of the tunnel kiln body 10.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. Automatic feeding and discharging device for tunnel kiln is characterized in that: comprises a PLC (programmable logic controller) controller (1), an electric hydraulic push rod (2), a first inductor (3), a second inductor (4), a front kiln door (11) and a rear kiln door (12); a front kiln door (11) and a rear kiln door (12) are respectively arranged at a feed inlet and a discharge outlet of the tunnel kiln body (10), an electric hydraulic push rod (2) is arranged right in front of the front kiln door (11), and a pushing end of the electric hydraulic push rod (2) points to the feed inlet of the tunnel kiln body (10); a conveying track for conveying kiln cars (13) is arranged in the tunnel kiln body (10), a first inductor (3) is arranged beside the conveying track at a feeding port of the tunnel kiln body (10), and an induction end of the first inductor (3) points to the feeding port far away from the tunnel kiln body (10); a second inductor (4) is arranged beside the conveying track at the discharge port of the tunnel kiln body (10), and the induction end of the second inductor (4) points to the discharge port far away from the tunnel kiln body (10); set up PLC controller (1) by electric hydraulic rod (2), first inductor (3) and second inductor (4) respectively with the input electrical connection of PLC controller (1), electric hydraulic rod (2), preceding kiln door (11) and back kiln door (12) respectively with the output electrical connection of PLC controller (1).
2. The automatic feeding and discharging device for the tunnel kiln as claimed in claim 1, wherein: the pushing end of the electric hydraulic push rod (2) is provided with a push plate (5), the pushing end of the electric hydraulic push rod (2) is fixedly connected with one side face of the push plate (5), the other side face of the push plate (5) points to a feed inlet of the tunnel kiln body (10), and the push plate (5) is vertically arranged.
3. The automatic feeding and discharging device for the tunnel kiln as claimed in claim 1, wherein: the outer side lower part of the front kiln door (11) is provided with an anti-collision piece (6), the working end of the anti-collision piece (6) points to the electric hydraulic push rod (2), and the anti-collision piece (6) is electrically connected with the input end of the PLC (1).
4. The automatic feeding and discharging device for the tunnel kiln as claimed in claim 1, wherein: and heat insulation protective covers are respectively arranged outside the first inductor (3) and the second inductor (4).
5. The automatic feeding and discharging device for the tunnel kiln as claimed in claim 1, wherein: and a conveyor belt (7) is arranged at the extending position of the conveying track at the discharge port of the tunnel kiln body (10).
6. The automatic feeding and discharging device for the tunnel kiln as claimed in claim 3, wherein: the anti-collision piece (6) is a high-temperature-resistant travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325023.4U CN210602759U (en) | 2019-08-15 | 2019-08-15 | Automatic feeding and discharging device for tunnel kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325023.4U CN210602759U (en) | 2019-08-15 | 2019-08-15 | Automatic feeding and discharging device for tunnel kiln |
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| CN210602759U true CN210602759U (en) | 2020-05-22 |
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| CN201921325023.4U Active CN210602759U (en) | 2019-08-15 | 2019-08-15 | Automatic feeding and discharging device for tunnel kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI769599B (en) * | 2020-11-26 | 2022-07-01 | 財團法人金屬工業研究發展中心 | The trolley feeding device of the combustion furnace and its trolley structure |
-
2019
- 2019-08-15 CN CN201921325023.4U patent/CN210602759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI769599B (en) * | 2020-11-26 | 2022-07-01 | 財團法人金屬工業研究發展中心 | The trolley feeding device of the combustion furnace and its trolley structure |
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