CN217829268U - Monitoring system and bag collector - Google Patents

Abstract

The utility model relates to a monitored control system and bag collector, monitored control system includes jetting deashing system, a plurality of poppet valves, pressure sensor, slide rheostat, voltage sensor and controller, the poppet valve includes cylinder and valve plate, valve plate and slide rheostat's gleitbretter is connected to the jar pole of cylinder, slide rheostat links to each other with voltage sensor, bag collector includes the dust removal box and as above monitored control system, be equipped with filter chamber and air-purifying chamber in the dust removal box, be equipped with the through-hole of corresponding valve plate on the first baffle of air-purifying chamber, pulse valve through controller monitoring jetting deashing system, each pressure sensor and voltage sensor, acquire pulse valve operating data respectively, the cylinder pressure and the valve plate working distance of poppet valve, reflect the poppet valve card pause and the not enough abnormal conditions of pressure, in time monitor trouble so that the personnel in time discover and deal with, guarantee the efficiency and the life-span of dust collector.

Description

Monitoring system and bag collector

Technical Field

The utility model belongs to the technical field of dust pelletizing system, concretely relates to monitored control system and bag collector.

Background

In order to respond to the environmental protection policy, the metallurgical casting industry adopts a bag type dust collector to collect fine, dry and non-fibrous dust, a filter bag is made of woven filter cloth or non-woven felt, the dust-containing gas is filtered by utilizing the filtering action of fiber fabric, after the dust-containing gas enters the bag type dust collector, the dust with large particles and large specific gravity falls into an ash bin due to the sedimentation of the gravity, the dust is blocked when the gas containing the fine dust passes through a filter material, so that the gas is purified, and the effects of purifying the working condition, recycling, guaranteeing the safety production and the like are achieved. When the dust on the surface of the filter bag is continuously increased, the system starts to automatically work, the lift valves can be closed, the pulse valves are opened one by one, compressed air is enabled to blow and clean the filter bag through the nozzle, the filter bag is enabled to expand suddenly, the dust is enabled to be separated from the filter bag rapidly and fall into the dust bin under the action of reverse airflow, and the filtering performance of the filter bag is recovered again. Under the abnormal conditions, the poppet valve can not all promote to target in place, and then influences dust collection efficiency, and the current proximity switch that adopts to set up at the poppet valve extreme monitors the switch signal that targets in place, can't reflect the poppet valve card pause and the not enough condition of pressure, can not in time monitor trouble and dust remover efficiency, influences the efficiency and the life-span of dust remover.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem to a certain extent at least, the utility model provides a monitored control system and bag collector, through the cylinder pressure and the valve plate working distance of monitoring jetting deashing system operation, poppet valve, the reflection poppet valve card pause with the not enough abnormal conditions of pressure, in time monitor trouble so that the staff in time discovers and deals with, guarantees the efficiency and the life-span of dust remover.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a monitoring system, includes jetting deashing system, a plurality of poppet valves, pressure sensor, slip rheostat, voltage sensor and controller, the poppet valve includes cylinder and valve plate, the cylinder is connected with the air supply system, and the gleitbretter of valve plate and slip rheostat is connected to the jar pole of cylinder, pressure sensor connects between corresponding cylinder and air supply system, slip rheostat links to each other with voltage sensor, the controller links to each other with jetting deashing system, pressure sensor, voltage sensor and air supply system.

The monitoring system further comprises a blowing ash removal system, wherein the blowing ash removal system comprises an air storage tank, a spray pipe and a plurality of pulse valves, the spray pipe is connected with the air storage tank, the spray pipe comprises a plurality of branch pipes connected with the pulse valves, and the pulse valves are connected with the controller.

The monitoring system further comprises an air compressor and an electromagnetic valve island which are connected, the electromagnetic valve island is connected with the controller, an air source pipeline is arranged between the electromagnetic valve island and the corresponding air cylinder, and the pressure sensor is arranged on the air source pipeline.

The monitoring system further comprises a cylinder rod of the cylinder, a metal rod of the slide rheostat and a ceramic cylinder which are arranged in parallel, and a support which is vertically connected is arranged between the cylinder rod of the cylinder and a sliding sheet of the slide rheostat.

The monitoring system is characterized in that the controller is connected with an alarm.

In the monitoring system, the controller is a PLC.

The utility model provides a bag collector, includes the dust removal box and as above arbitrary monitored control system, be equipped with filter chamber and air-purifying chamber in the dust removal box, the filter chamber is equipped with dusty gas entry, ash storehouse and corresponds a plurality of filter bags of jetting deashing system, the air-purifying chamber is equipped with purified gas outlet and first baffle, be equipped with the through-hole that corresponds the valve plate on the first baffle.

In the bag type dust collector, the ash bin is provided with an ash discharge valve.

The bag type dust collector is characterized in that a second partition plate extending to the space between the adjacent branch pipes is arranged between the adjacent pulse valves, and the second partition plate is connected with the first partition plate.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The pressure sensors detect the cylinder pressure of each poppet valve and transmit the cylinder pressure to the controller, the pulse valves feed back operation data to the controller, the cylinder rods drive the sliding sheet of the sliding rheostat to move to cause resistance value change, the voltage sensors transmit the operation distance of the detection valve plate to the controller, the situations of blockage of the poppet valves and insufficient pressure detection of the cylinder pressure are reflected, the internal ash amount situation can be monitored, and the abnormal situations of the filter bags and the poppet valves are reflected.

(2) The operation distance of the valve plate is detected to reflect the working condition of the poppet valve, faults can be monitored in time when no poppet valve plate exists or the pressure of the poppet valve is insufficient, the alarm is driven by the controller to indicate and alarm, and the efficiency of the dust remover is reflected by the normal working times of the poppet valve, so that personnel can find and dispose the dust remover in time, and the energy efficiency and the service life of the dust remover are ensured.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of embodiment 1 of the present invention installed on embodiment 2;

FIG. 2 is a schematic view showing a poppet valve according to embodiment 2 of the present invention in which embodiment 1 is installed;

fig. 3 is a front view structural diagram of embodiment 2 of the present invention;

fig. 4 is a plan view structural diagram of embodiment 2 of the present invention.

The labels in the figure are: the blowing and dust removing system comprises a blowing and dust removing system 1, an air storage tank 101, a spray pipe 102, a pulse valve 103 and a branch pipe 104; poppet valve 2, cylinder 201, valve plate 202, cylinder rod 203; a pressure sensor 3; the sliding rheostat 4, a sliding sheet 401, a metal rod 402, a porcelain cylinder 403, a coil 404, a binding post 405, a bracket 406 and a hoop 407; a voltage sensor 5; a controller 6, an alarm 601; an air source system 7, an air compressor 701, an electromagnetic valve island 702 and an air source pipeline 703; the dust removal box body 8, a filter chamber 801, a gas purification chamber 802, a dust-containing gas inlet 803, a dust bin 804, a filter bag 805, a first partition plate 806, a through hole 807, a dust discharge valve 808, a second partition plate 809 and a gas purification outlet 810.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Example 1:

as shown in fig. 1-2, for a preferred embodiment of the monitoring system of the present invention, the monitoring system includes a blowing ash removal system 1, a plurality of poppet valves 2, a pressure sensor 3, a slide rheostat 4, a voltage sensor 5 and a controller 6, the poppet valve 2 includes a cylinder 201 and a valve plate 202, the cylinder 201 is connected to an air source system 7, a cylinder rod 203 of the cylinder 201 is connected to a sliding piece 401 of the valve plate 202 and the slide rheostat 4, the pressure sensor 3 is connected between the corresponding cylinder 201 and the air source system 7, the slide rheostat 4 is connected to the voltage sensor 5, and the controller 6 is connected to the blowing ash removal system 1, the pressure sensor 3, the voltage sensor 5 and the air source system 7.

The monitoring system further comprises an air storage tank 101, a spray pipe 102 and a plurality of pulse valves 103, wherein the spray pipe 102 is connected with the air storage tank 101, the spray pipe 102 comprises a plurality of branch pipes 104 connected with the pulse valves 103, the pulse valves 103 are connected with the controller 6, after the feedback cylinder 201 of the air source system 7 is started, the controller 6 controls the corresponding pulse valves 103 to open and close the corresponding branch pipes 104 of the spray pipe 102, the pulse valves 103 feed back operation data to the controller 6, so that high-pressure air in the air storage tank 101 is sprayed to the filter bags 805 at high pressure through the branch pipes 104 of the spray pipe 102 to enable the filter bags 805 to expand suddenly, under the action of reverse air flow, dust is quickly separated from the filter bags 805 and falls into the dust bins 804, and the filtering performance of the filter bags 805 is recovered.

The monitoring system further includes an air compressor 701 and an electromagnetic valve island 702 which are connected to each other, the electromagnetic valve island 702 is connected to the controller 6, an air source pipeline 703 is provided between the electromagnetic valve island 702 and the corresponding cylinder 201, the pressure sensor 3 is disposed on the air source pipeline 703, the controller 6 controls the opening and closing of the electromagnetic valve island 702 to correspondingly open the air source pipeline 703 connected to the air compressor 701, the cylinder 201 is driven to move in and out, and meanwhile, the pressure sensor 3 disposed on the air source pipeline 703 detects pressure and transmits the pressure to the controller 6.

In the monitoring system, the cylinder rod 203 of the air cylinder 201 is arranged in parallel with the metal rod 402 and the ceramic cylinder 403 of the sliding rheostat 4, the vertically connected bracket 406 is arranged between the cylinder rod 203 of the air cylinder 201 and the sliding sheet 401 of the sliding rheostat 4, the length of the coil 404 of the sliding rheostat 4 wound on the ceramic cylinder 403 is larger than the stroke of the cylinder rod 203, so that when the cylinder rod 203 of the air cylinder 201 moves in a stretching mode, the bracket 406 drives the sliding sheet 401 to move along the metal rod 402, the resistance of the sliding rheostat 4 is changed, the voltage sensor 5 is electrically connected with the terminal 405 of the sliding rheostat 4, the detected resistance value is converted into 0-10V analog quantity, and the analog quantity is input to the controller 6.

Furthermore, the end of the bracket 406 is provided with an anchor ear 407 connected with the end of the cylinder rod 203 of the air cylinder 201, and the anchor ear 407 is clasped outside the cylinder rod 203 to realize fixed connection with the cylinder rod 203.

The monitoring system is characterized in that the controller 6 is connected with an alarm 601 for alarming when the poppet valve 2 fails, so that personnel can find and process the failure in time.

In the monitoring system, the controller 6 is a PLC, which is basically configured as a CPU, an I/O board, a display panel, a memory, and a power supply, and the PLC can receive and store the status and data of each input on the site, and implement distributed control and centralized management through communication.

Example 2:

as shown in fig. 1-4, for the present invention, a preferred embodiment of a bag-type dust collector, the bag-type dust collector includes a dust-collecting box 8 and a monitoring system as in embodiment 1, a filtering chamber 801 and a gas-purifying chamber 802 are provided in the dust-collecting box 8, the filtering chamber 801 is provided with a dust-containing gas inlet 803, a dust bin 804 and a plurality of filtering bags 805 corresponding to the blowing ash-cleaning system 1, the gas-purifying chamber 802 is provided with a purified gas outlet 810 and a first partition 806, and the first partition 806 is provided with a through hole 807 corresponding to the valve plate 202.

In the bag filter, the dust bin 804 is further provided with a dust discharge valve 808, and settled dust is discharged through the dust discharge valve 808.

In the bag type dust collector, further, a second partition 809 extending to the space between the adjacent branch pipes 104 is arranged between the adjacent pulse valves 103, and the second partition 809 is connected with the first partition 806 and used for blowing and cleaning dust in the corresponding branch pipes 104 in the second partition 809 when the corresponding poppet valve 2 is closed.

The operation principle of the bag type dust collector is as follows:

the air source system 7 is controlled by the controller 6 to drive the poppet valve 2, the cylinder 201 cylinder rod 203 of the poppet valve 2 contracts to drive the valve plate 202 to ascend and separate from the through hole 807, when the poppet valve 2 is in an ascending state, dust-containing gas enters the filter chamber 801 from the dust-containing gas inlet 803, coarser particles directly fall into the dust bin 804, the dust is intercepted outside the filter bag 805 by the dust-containing gas under the filtering action of the filter holes of the filter bags 805, purified gas enters the gas purifying chamber 802 from the inside of the filter bag 805, and the purified gas outlet 810 is connected with a fan to suck out the purified gas in the gas purifying chamber 802;

when the dust on the surface of the filter bag 805 is continuously increased, the controller 6 drives the cylinder rod 203 of the cylinder 201 of the lift valve 2 to extend to drive the valve plate 202 to descend, the valve plate 202 and the through hole 807 are closed to stop the purified gas outlet 810, and the controller 6 controls the blowing ash removal system 1 to remove ash from the filter bag 805, so that the filter bag 805 expands under the action of the blowing gas to shake off the dust, and the dust removal capability of the filter bag 805 is recovered;

after the blowing and dust-removing system 1 operates for a period of time, the controller 6 drives the cylinder rod 203 of the cylinder 201 of the lift valve 2 to contract, the state of gas exhaust of the purified gas is restored again, dust is settled in the dust bin 804 and is discharged by the dust discharge valve 808, and dust removal is realized.

The monitoring principle of the bag type dust collector is as follows:

the normal blowing pressure of the filter bag 805 is 5Kg, while the blowing pressure of the broken filter bag 805 can only reach about 4Kg, and the force required by the compression of the valve plate 202 is small; the pressure sensor 3 detects the pressure of the cylinder 201 of each poppet valve 2 and transmits the pressure to the PLC controller 6, the pressure of the cylinder 201 below the filter bag 805 is normal, when the pressure detection value of the cylinder 201 of the pressure sensor 3 is smaller than the pressure of the set cylinder 201, the condition that the filter bag 805 below the branch pipe 104 corresponding to the poppet valve 2 and separated by the second partition 809 is abnormal can be reflected, and the PLC controller 6 controls the alarm 601 to warn and remind people to process in time; the condition of the filter bag 805 and the dust removal efficiency of the dust remover are determined by feeding back operation data to the controller 6 through the pulse valve 103 and detecting the pressure of the air cylinder 201.

The lifting distance of the valve plate 202 of the poppet valve 2 is 40CM under normal conditions, the required lifting pressure of the valve plate 202 is large when the poppet valve 2 is stuck or the filter bag 805 contains dust, and the valve plate is difficult to lift to the distance under the condition of insufficient pressure; when the cylinder rod 203 of the cylinder 201 drives the valve plate 202 to move, the slide plate 401 of the slide rheostat 4 is synchronously driven to move to change the resistance value of the slide rheostat 4, the resistance value is converted into 0-10V analog quantity by the voltage sensor 5 and is input into the PLC 6, the movement distance of the valve plate 202 is determined according to the change of the resistance value, and when the detection value of the movement distance of the valve plate 202 is smaller than a set value, the abnormal working of the poppet valve 2 can be reflected; adopt cylinder pole 203 to drive the resistance change monitoring valve plate 202 working distance of slide rheostat 4, compared with current proximity switch structure, not only can be when the poppet valve 2 that corresponds the position does not promote, PLC controller 6 control alarm 601 warns and reminds personnel to handle in time, can also in time reflect the card pause condition that poppet valve 2 promoted but did not promote the target in place, with the inside ash content condition of cylinder 201 pressure detection reflection.

When the detection value of the movement distance is equal to 40CM, the PLC 6 counts the normal work of the poppet valve 2, the controller 6 records the work times of the poppet valve 2 in a cycle period by taking the best dust removal efficiency, namely the work times of the poppet valve 2 in the full state as the target times, and when the work times of the poppet valve 2 in the cycle period are less than the work times of the poppet valve 2 in the full state, the monitoring shows that the dust removal efficiency is reduced. For example, when the lift efficiency = the number of times the actual poppet valve 2 is operated/the number of times the poppet valve 2 is operated in the full state × 100%, the lift efficiency > 80% is in the good state, and the lift efficiency < 60% indicates that the dust removal efficiency is poor, so that the dust removal efficiency is reflected by the number of normal operations of the poppet valve 2.

In conclusion, the controller 6 is used for monitoring the blowing ash removal system 1, the pressure sensors 3 and the voltage sensor 5, and respectively acquiring the operation data of the pulse valve 103, the cylinder 201 pressure and the valve plate 202 running distance of the poppet valve 2, so that the abnormal point positions of the filter bag 805 and the poppet valve 2 can be reflected, and faults can be monitored in time, the resistance value change of the sliding rheostat 4 driven by the cylinder rod 203 is used for detecting the running distance of the valve plate 202, the clamping and insufficient pressure conditions of the poppet valve 2 can be reflected together with the pressure detection of the cylinder 201, the internal ash quantity condition can be reflected, and the PLC 6 can be used for driving the alarm 601 to indicate and alarm when the poppet valve 2 plate or the poppet valve 2 is not in insufficient pressure, so that a person can find and dispose in time, the unilateral energy waste is avoided, and the energy efficiency and the service life of the dust remover are ensured.

The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. The monitoring system is characterized by comprising a blowing ash removal system (1), a plurality of lifting valves (2), a pressure sensor (3), a sliding rheostat (4), a voltage sensor (5) and a controller (6), wherein the lifting valves (2) comprise cylinders (201) and valve plates (202), the cylinders (201) are connected with an air source system (7), cylinder rods (203) of the cylinders (201) are connected with the valve plates (202) and sliding sheets (401) of the sliding rheostat (4), the pressure sensors (3) are connected between the corresponding cylinders (201) and the air source system (7), the sliding rheostat (4) is connected with the voltage sensor (5), and the controller (6) is connected with the blowing ash removal system (1), the pressure sensor (3), the voltage sensor (5) and the air source system (7).

2. A monitoring system according to claim 1, wherein the blowing ash removal system (1) comprises an air storage tank (101), a nozzle (102) and a plurality of pulse valves (103), the nozzle (102) is connected with the air storage tank (101), the nozzle (102) comprises a plurality of branch pipes (104) connected with the pulse valves (103), and the pulse valves (103) are connected with the controller (6).

3. A monitoring system according to claim 1, characterised in that the air supply system (7) comprises an air compressor (701) and an electromagnetic valve island (702) which are connected, the electromagnetic valve island (702) is connected with the controller (6), an air supply pipeline (703) is arranged between the electromagnetic valve island (702) and the corresponding cylinder (201), and the pressure sensor (3) is arranged on the air supply pipeline (703).

4. A monitoring system according to claim 1, characterized in that the cylinder rod (203) of the cylinder (201) is arranged in parallel with the metal rod (402) and the porcelain tube (403) of the slide varistor (4), and that a vertically connected bracket (406) is arranged between the cylinder rod (203) of the cylinder (201) and the slide (401) of the slide varistor (4).

5. A monitoring system according to claim 1, characterised in that an alarm (601) is connected to the controller (6).

6. A monitoring system according to claim 1, in which the controller (6) is a PLC.

7. A bag-type dust collector, comprising a dust collection box (8) and a monitoring system as claimed in any one of claims 1 to 6, wherein a filtering chamber (801) and a gas purification chamber (802) are arranged in the dust collection box (8), the filtering chamber (801) is provided with a dust-containing gas inlet (803), a dust bin (804) and a plurality of filtering bags (805) corresponding to the blowing and dust cleaning system (1), the gas purification chamber (802) is provided with a gas purification outlet (810) and a first partition plate (806), and the first partition plate (806) is provided with a through hole (807) corresponding to the valve plate (202).

8. A bag house according to claim 7, characterized in that the ash bin (804) is provided with an ash discharge valve (808).

9. A bag house dust collector according to claim 7, characterized in that between adjacent pulse valves (103) there is a second partition (809) extending between adjacent branch pipes (104), said second partition (809) being connected to the first partition (806).

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