CN214950549U - Automatic furnace pressure adjusting and controlling device - Google Patents
Automatic furnace pressure adjusting and controlling device Download PDFInfo
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- CN214950549U CN214950549U CN202022965791.5U CN202022965791U CN214950549U CN 214950549 U CN214950549 U CN 214950549U CN 202022965791 U CN202022965791 U CN 202022965791U CN 214950549 U CN214950549 U CN 214950549U
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Abstract
The utility model discloses a stove pressure automatic adjustment controlling means, its technical scheme main points are: the automatic air-conditioning system comprises a centrifugal fan, a pressure sensor, a control box, an exhaust pipeline and a roller furnace, wherein the centrifugal fan is fixedly arranged on one side of the top of the roller furnace, the input end of the centrifugal fan is communicated with the inside of the roller furnace, the output end of the centrifugal fan is communicated with the exhaust pipeline, the pressure sensor is fixedly arranged on the other side of the top of the roller furnace, a jack is formed in the top of the roller furnace, the bottom of the pressure sensor is inserted into the jack, a fixing ring is welded on the pressure sensor, a connecting rod is welded on the outer surface of the fixing ring, and a mounting plate is welded at the bottom end of the connecting rod; through inserting pressure sensor's bottom in the jack, then with first fastening bolt screw in threaded hole, fix the top at the roller bed furnace with the mounting panel to it is fixed to make things convenient for to install pressure sensor.
Description
Technical Field
The utility model relates to a roller hearth furnace field, in particular to furnace pressure automatic adjustment controlling means.
Background
The furnace pressure of the existing roller furnace is observed through a furnace middle position pressure gauge, if the furnace pressure exceeds a control range, the furnace internal pressure is adjusted by manually adjusting the furnace air input by an operator, in-process operators need high-frequency inspection and adjustment, because the pressure response in the adjustment process needs about 2 minutes, the adjusted pressure can be reflected, the condition that the material loses atmosphere protection in the sintering process is easy to occur, and because a large amount of alkali particles are contained in the discharged smoke dust, the serious injury can be caused to the body once the particles are sucked during manual intervention.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the background art, the utility model aims to provide an automatic furnace pressure adjusting and controlling device to solve the problem mentioned in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an automatic furnace pressure adjusting and controlling device comprises a centrifugal fan, a pressure sensor, a control box, an exhaust pipeline and a roller furnace, wherein the centrifugal fan is fixedly arranged on one side of the top of the roller furnace, the input end of the centrifugal fan is communicated with the inside of the roller furnace, the output end of the centrifugal fan is communicated with the exhaust pipeline, the pressure sensor is fixedly arranged on the other side of the top of the roller furnace, the top of the roller furnace is provided with a jack, the bottom of the pressure sensor is inserted in the jack, a fixing ring is welded on the pressure sensor, a connecting rod is welded on the outer surface of the fixing ring, a mounting plate is welded at the bottom end of the connecting rod, a first fastening bolt is connected onto the mounting plate in a threaded manner, a threaded hole is formed in the upper surface of the roller furnace, and the bottom end of the first fastening bolt is in threaded hole, one side of control box with one side of roller hearth furnace is through coupling mechanism fixed connection, air switch is installed at the inside top of control box, PLC is installed to the inside intermediate position of control box, communication module is installed to one side of PLC, the analog quantity module is installed to PLC's opposite side, the converter is installed to the inside bottom of control box, the relay is installed to one side of converter.
By adopting the technical scheme, the pressure sensor is arranged to replace manual detection of the hearth pressure, and the PLC is arranged to replace manual control, so that manual intervention is not needed in the working process, and safety accidents caused by the fact that workers suck alkali particles in smoke dust are avoided; the bottom end of the pressure sensor is inserted into the jack, then the first fastening bolt is screwed into the threaded hole, and the mounting plate is fixed at the top of the roller furnace, so that the pressure sensor is conveniently mounted and fixed; through setting up coupling mechanism, make things convenient for the control box to be connected with the roller bed furnace, increased the stability of control box, reduced because the striking probability of empting, increased the security of control box.
Preferably, the connecting rods and the first fastening bolts are arranged in two groups, and the two groups of connecting rods and the two groups of first fastening bolts are symmetrically arranged on two sides of the pressure sensor.
Through adopting above-mentioned technical scheme, can increase pressure sensor's installation stability.
Preferably, the surface of the pressure sensor is provided with an external thread, the external thread is connected with a rotating block in a threaded manner, the lower surface of the rotating block is fixedly provided with a rubber sealing ring, the upper surface of the jack is located a sealing groove is formed in the roller furnace, and the rubber sealing ring is arranged in the sealing groove.
Through adopting above-mentioned technical scheme, can conveniently seal up the jack department.
Preferably, the connecting mechanism comprises a fixed rod, a first positioning plate is welded at one end of the fixed rod and fixedly connected with the control box through a second fastening bolt, a second positioning plate is welded at the other end of the fixed rod and fixedly connected with the roller hearth furnace through a third fastening bolt.
By adopting the technical scheme, the control box can be conveniently and fixedly connected with the roller furnace.
Preferably, the second fastening bolts are provided with four groups, the four groups of second fastening bolts are respectively arranged around the first positioning plate, the four groups of third fastening bolts are respectively arranged around the second positioning plate.
Through adopting above-mentioned technical scheme, can increase the stability of installation.
Preferably, the connecting mechanisms are provided with two groups, and the two groups of connecting mechanisms are respectively arranged at the upper end and the lower end of the roller furnace.
Through adopting above-mentioned technical scheme, can increase the stability that the control box is connected.
Preferably, the outer surface of the control box is provided with a touch screen.
Through adopting above-mentioned technical scheme, can conveniently operate the control box.
Preferably, the pressure sensor is a thin-film high-precision pressure sensor made of stainless steel, and the exhaust duct is made of carbon steel.
By adopting the technical scheme, the sensitivity of induction can be increased.
To sum up, the utility model discloses mainly have following beneficial effect:
firstly, the pressure sensor is arranged to replace manual detection of hearth pressure, and the PLC is arranged to replace manual control, so that manual intervention is not needed in the working process, and safety accidents caused by the fact that workers suck alkali particles in smoke dust are avoided;
secondly, the bottom end of the pressure sensor is inserted into the jack, then the first fastening bolt is screwed into the threaded hole, and the mounting plate is fixed at the top of the roller furnace, so that the pressure sensor is conveniently mounted and fixed;
and thirdly, the connecting mechanism is arranged, so that the control box is conveniently connected with the roller furnace, the stability of the control box is improved, the probability of toppling over due to impact is reduced, and the safety of the control box is improved.
Drawings
Fig. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;
fig. 3 is an enlarged view of fig. 1 at B according to the present invention;
fig. 4 is a schematic diagram of the internal structure of the control box of fig. 1 according to the present invention.
Reference numerals: 1. a centrifugal fan; 2. a pressure sensor; 3. a control box; 4. an exhaust duct; 5. a roller furnace; 6. a jack; 7. a fixing ring; 8. a connecting rod; 9. mounting a plate; 10. a first fastening bolt; 11. a threaded hole; 12. a connecting mechanism; 1201. fixing the rod; 1202. a first positioning plate; 1203. a second fastening bolt; 1204. a second positioning plate; 1205. a third fastening bolt; 13. an air switch; 14. a communication module; 15. a PLC; 16. an analog quantity module; 17. a frequency converter; 18. a relay; 19. an external thread; 20. rotating the block; 21. a rubber seal ring; 22. a sealing groove; 23. a touch screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, an automatic furnace pressure adjustment and control device comprises a centrifugal fan 1, a pressure sensor 2, a control box 3, an exhaust duct 4 and a roller furnace 5, wherein the centrifugal fan 1 is fixedly installed on one side of the top of the roller furnace 5, the input end of the centrifugal fan 1 is communicated with the inside of the roller furnace 5, the output end of the centrifugal fan 1 is communicated with the exhaust duct 4, the pressure sensor 2 is fixedly installed on the other side of the top of the roller furnace 5, a jack 6 is formed in the top of the roller furnace 5, the bottom of the pressure sensor 2 is inserted into the jack 6, a fixing ring 7 is welded on the pressure sensor 2, a connecting rod 8 is welded on the outer surface of the fixing ring 7, a mounting plate 9 is welded at the bottom end of the connecting rod 8, a first fastening bolt 10 is connected on the mounting plate 9 by screw threads, a threaded hole 11 is formed in the upper surface of the roller furnace 5, and the bottom end of the first fastening bolt 10 is connected in the threaded hole 11, one side of control box 3 and one side of roller hearth furnace 5 pass through coupling mechanism 12 fixed connection, air switch 13 is installed at the inside top of control box 3, PLC 15 is installed to the inside intermediate position of control box 3, PLC 15 is programmable logic controller, communication module 14 is installed to one side of PLC 15, analog module 16 is installed to PLC 15's opposite side, converter 17 is installed to the inside bottom of control box 3, relay 18 is installed to one side of converter 17.
Referring to fig. 2, in order to increase the mounting stability of the pressure sensor 2; the connecting rods 8 and the first fastening bolts 10 are arranged in two groups, and the two groups of connecting rods 8 and the two groups of first fastening bolts 10 are symmetrically arranged on two sides of the pressure sensor 2.
Referring to fig. 2, sealing at the insertion hole 6 is facilitated; the surface of pressure sensor 2 is provided with external screw thread 19, and threaded connection has rotatory piece 20 on the external screw thread 19, and the fixed surface of rotatory piece 20 is provided with rubber seal 21, and the upper surface of jack 6 is located roller hearth 5 and is provided with seal groove 22, and rubber seal 21 sets up in seal groove 22, through rotating rotatory piece 20, makes rubber seal 21 insert in seal groove 22 to increase sealed effect.
Referring to fig. 3, in order to facilitate the fixed connection between the control box 3 and the roller hearth furnace 5; the connecting mechanism 12 comprises a fixing rod 1201, a first positioning plate 1202 is welded at one end of the fixing rod 1201, the first positioning plate 1202 is fixedly connected with the control box 3 through a second fastening bolt 1203, a second positioning plate 1204 is welded at the other end of the fixing rod 1201, and the second positioning plate 1204 is fixedly connected with the roller furnace 5 through a third fastening bolt 1205.
Referring to fig. 3, to increase the stability of the installation; the second fastening bolts 1203 are provided in four sets, the four sets of second fastening bolts 1203 are respectively provided around the first positioning plate 1202, the third fastening bolts 1205 are provided in four sets, and the four sets of third fastening bolts 1205 are respectively provided around the second positioning plate 1204.
With reference to fig. 1, in order to increase the stability of the connection of the control box 3; two groups of connecting mechanisms 12 are arranged, and the two groups of connecting mechanisms 12 are respectively arranged at the upper end and the lower end of the roller furnace 5.
Referring to fig. 1, the control box 3 is operated for convenience; the outer surface of the control box 3 is provided with a touch screen 23.
Referring to fig. 1, in order to increase the sensitivity of the sensing, the pressure sensor 2 is a thin-film high-precision pressure sensor made of stainless steel, and the exhaust duct 4 is a carbon steel exhaust duct.
The use principle and the advantages are as follows:
the centrifugal fan 1, the pressure sensor 2 and the start and stop of the equipment are all connected to the PLC 15, and a control program is compiled to enable the control program to execute actions according to a set work part; the pressure sensor 2 uses a 4-20mA output mode, amplifies a current signal through a special control module 16, converts the current signal into a digital quantity signal and is controlled by a PLC 15; the centrifugal fan 1 realizes PID automatic adjustment control through a communication module 14 in an RS485 communication mode, monitors the pressure in the furnace in real time, continuously compares the pressure with a set value, and controls the running frequency of the fan in real time according to the difference value of the pressure and the set value so that the pressure is always stabilized in the set value range; the PLC 15 is a programmable logic controller; PID: p represents a proportionality constant, i represents an integration time, and d represents a derivative gain; the RS485 communication refers to a mode of sending data and receiving data between the PLC 15 and the frequency converter 17; RS485 stands for half-duplex communication, and the mode has the advantages of high speed, strong anti-interference performance and long communication distance.
The pressure sensor 2 is arranged to replace manual detection of hearth pressure, the air switch 13 is used for supplying power to the control system, and the PLC 15 is arranged to replace manual control, so that manual intervention is not needed in the working process, and safety accidents caused by alkali particles in smoke dust sucked by staff are avoided; the bottom end of the pressure sensor 2 is inserted into the jack 6, then the first fastening bolt 10 is screwed into the threaded hole 11, and the mounting plate 9 is fixed at the top of the roller furnace 5, so that the pressure sensor 2 is conveniently mounted and fixed; through setting up coupling mechanism 12, make things convenient for control box 3 to be connected with roller hearth furnace 5, increased control box 3's stability, reduced because the striking probability of empting, increased control box 3's security.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a furnace pressure automatic adjustment controlling means, includes centrifugal fan (1), pressure sensor (2), control box (3), exhaust duct (4) and roller hearth furnace (5), its characterized in that: the centrifugal fan (1) is fixedly installed on one side of the top of the roller furnace (5), the input end of the centrifugal fan (1) is communicated with the inside of the roller furnace (5), the output end of the centrifugal fan (1) is communicated with the exhaust pipeline (4), the pressure sensor (2) is fixedly arranged on the other side of the top of the roller furnace (5), the top of the roller furnace (5) is provided with a jack (6), the bottom of the pressure sensor (2) is inserted into the jack (6), the pressure sensor (2) is welded with a fixing ring (7), the outer surface of the fixing ring (7) is welded with a connecting rod (8), the bottom end of the connecting rod (8) is welded with a mounting plate (9), the mounting plate (9) is in threaded connection with a first fastening bolt (10), the upper surface of the roller furnace (5) is provided with a threaded hole (11), bottom threaded connection of first fastening bolt (10) is in screw hole (11), one side of control box (3) with coupling mechanism (12) fixed connection is passed through to one side of roller hearth furnace (5), air switch (13) are installed at the inside top of control box (3), PLC (15) are installed to the inside intermediate position of control box (3), communication module (14) are installed to one side of PLC (15), analog quantity module (16) are installed to the opposite side of PLC (15), converter (17) are installed to the inside bottom of control box (3), relay (18) are installed to one side of converter (17).
2. The automatic furnace pressure adjusting and controlling device according to claim 1, characterized in that: the connecting rod (8) and the first fastening bolt (10) are arranged in two groups, and the connecting rod (8) and the first fastening bolt (10) are symmetrically arranged on two sides of the pressure sensor (2).
3. The automatic furnace pressure adjusting and controlling device according to claim 1, characterized in that: the surface of pressure sensor (2) is provided with external screw thread (19), threaded connection has rotatory piece (20) on external screw thread (19), the fixed surface of rotatory piece (20) is provided with rubber seal (21), the upper surface of jack (6) is located be provided with seal groove (22) on roller hearth furnace (5), rubber seal (21) set up in seal groove (22).
4. The automatic furnace pressure adjusting and controlling device according to claim 1, characterized in that: the connecting mechanism (12) comprises a fixing rod (1201), a first positioning plate (1202) is welded at one end of the fixing rod (1201), the first positioning plate (1202) is fixedly connected with the control box (3) through a second fastening bolt (1203), a second positioning plate (1204) is welded at the other end of the fixing rod (1201), and the second positioning plate (1204) is fixedly connected with the roller hearth furnace (5) through a third fastening bolt (1205).
5. The automatic furnace pressure adjusting and controlling device according to claim 4, wherein: the second fastening bolts (1203) are arranged in four groups, the four groups of second fastening bolts (1203) are respectively arranged on the periphery of the first positioning plate (1202), the four groups of third fastening bolts (1205) are arranged in four groups, and the four groups of third fastening bolts (1205) are respectively arranged on the periphery of the second positioning plate (1204).
6. The automatic furnace pressure adjusting and controlling device according to claim 1, characterized in that: the two groups of connecting mechanisms (12) are arranged, and the two groups of connecting mechanisms (12) are respectively arranged at the upper end and the lower end of the roller furnace (5).
7. The automatic furnace pressure adjusting and controlling device according to claim 1, characterized in that: and a touch screen (23) is arranged on the outer surface of the control box (3).
8. The automatic furnace pressure adjusting and controlling device according to claim 1, characterized in that: pressure sensor (2) are the high accuracy formula pressure sensor of film that stainless steel matter made, exhaust duct (4) are carbon steel material exhaust duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022965791.5U CN214950549U (en) | 2020-12-10 | 2020-12-10 | Automatic furnace pressure adjusting and controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022965791.5U CN214950549U (en) | 2020-12-10 | 2020-12-10 | Automatic furnace pressure adjusting and controlling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214950549U true CN214950549U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022965791.5U Active CN214950549U (en) | 2020-12-10 | 2020-12-10 | Automatic furnace pressure adjusting and controlling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214950549U (en) |
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2020
- 2020-12-10 CN CN202022965791.5U patent/CN214950549U/en active Active
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