Automatic sewage filtering device for water curtain dust remover

Abstract

The invention discloses an automatic sewage filtering device for a water curtain dust remover. The automatic sewage filtering device comprises a filtering stand, a ratchet wheel, a conveying chain, a driving device and a filtering paper box, the filtering stand is arranged below an overflow pipe of a water tank of the water curtain dust remover and is positioned above a sewage pool; the filter stand is of a frame-shaped structure, the filter paper box is arranged at one end of the filter stand, the conveying chain is arranged in the filter stand, filter paper pulled out of the filter paper box is flatly laid on the conveying chain, and the filter paper is located under the overflow pipe; the ratchet wheel is arranged on the filtering stand and is in meshed connection with the conveying chain; and the driving device is in transmission connection with the ratchet wheel and is used for driving the ratchet wheel to rotate so as to drive the conveying chain to move forwards and enable the filter paper to move forwards, so that the filter paper below the overflow pipe is replaced. The sewage purification effect of the water curtain dust remover can be improved, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and more specifically to an automatic sewage filtering device for a water curtain dust collector. Background Art

[0002] The dust generated by the existing cigarette factory's wire cutting machine during production is sent to the water curtain dust collector through the dust removal pipeline (negative pressure wind). The dust particles are effectively captured in the water curtain dust collector (negative pressure wind) and the sparks generated by the cutting machine during the sharpening process are extinguished. The dust concentration of the purified exhaust gas is 2mg / m 3 In the following, it can be discharged directly in the dust removal room, and the wastewater containing dust enters the circulating filter water tank for filtration. The purified wastewater is returned to the water curtain dust removal equipment through the circulating water pump for recycling, which saves energy and reduces emissions. However, in the production process, the circulating water combines with dust to achieve a dust removal effect. There is a lot of dust, and the water is very easy to be polluted, resulting in a high risk of pipeline blockage. Once blocked, it will cause production interruption and seriously affect product quality. After the production is completed, the water tank has a large amount of scale accumulation, and the cleaning process is difficult. At the same time, the water temperature of the water tank is high, and there is a risk of scalding when cleaning manually. Therefore, how to automatically filter and treat the wastewater of the water curtain dust collector is of great significance. Summary of the invention

[0003] The invention provides an automatic sewage filtering device for a water curtain dust collector, which solves the problem that circulating water of the existing water curtain dust collector has large dust and is easy to be blocked, can improve the sewage purification effect of the water curtain dust collector, reduce the maintenance cost of the equipment, and increase the service life of the equipment.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An automatic sewage filtering device for a water curtain dust collector comprises: a filtering stand, a ratchet, a conveying chain, a driving device and a filter paper box;

[0006] The filtering frame is arranged below the overflow pipe of the water tank of the water curtain dust collector and above the sewage pool;

[0007] The filter stand is a frame-shaped structure, the filter paper box is arranged on one end of the filter stand, the filter stand is provided with the conveying chain, the filter paper pulled out from the filter paper box is laid flat on the conveying chain, and the filter paper is placed directly below the overflow pipe;

[0008] The ratchet wheel is arranged on the filter stand and meshedly connected with the conveying chain;

[0009] The driving device is in driving connection with the ratchet wheel and is used for driving the ratchet wheel to rotate, so as to drive the conveying chain to move forward, so as to move the filter paper forward, and then replace the filter paper below the overflow pipe.

[0010] Preferably, it also includes: a cleaning bucket;

[0011] The cleaning bucket is arranged below the other end of the filter stand and is used to receive the filter paper and waste residue dropped from the conveyor chain.

[0012] Preferably, it also includes: a paper pressing roller;

[0013] The paper pressing roller is arranged on the filter stand and is arranged above the conveying chain in a liftable manner to press the filter paper on the conveying chain.

[0014] Preferably, the driving device comprises: a driving cylinder and a push rod;

[0015] The driving cylinder is connected to one end of the push rod, and the other end of the push rod is drivingly connected to the ratchet wheel;

[0016] When the driving cylinder is ventilated, the push rod is driven to push the ratchet wheel to rotate a set angle, so that the conveying chain is conveyed forward a corresponding distance.

[0017] Preferably, it also includes: a solenoid valve;

[0018] The driving cylinder is connected to an external compressed air source through a compressed air pipe, and the solenoid valve is arranged on the compressed air pipe to control the on-off of the compressed air of the driving cylinder.

[0019] Preferably, it also includes: a controller;

[0020] The controller is connected to the electromagnetic valve signal, and is used to control the on or off of the electromagnetic valve, and control the electromagnetic valve to work in a cycle of on for 5 seconds and off for 30 seconds.

[0021] Preferably, it also includes: an industrial camera;

[0022] The industrial camera is arranged above the overflow pipe to collect video of the filter paper below the overflow pipe;

[0023] The controller is connected to the industrial camera signal, and identifies whether the filter paper needs to be replaced according to the image collected by the industrial camera, and controls the solenoid valve to be turned on when replacement is required, so that the conveyor chain conveys the filter paper forward.

[0024] Preferably, it also includes: an alarm device;

[0025] The alarm device is connected to the controller signal, and the controller controls the alarm device to sound an alarm when the filter paper is short.

[0026] Preferably, the alarm device includes at least any one of the following: an indicator light, a buzzer and an audible and visual alarm.

[0027] Preferably, the controller adopts a PLC programmable controller or a microprocessor.

[0028] The present invention provides an automatic sewage filtering device for a water curtain dust collector, wherein a filtering stand is arranged on a sewage pool, a filter paper is arranged on the filtering stand and is located below an overflow pipe of a water tank of the water curtain dust collector, and the filter paper is replaced by a conveyor chain to drive the filter paper. The problem that the circulating water of the existing water curtain dust collector has large dust and is easy to be blocked is solved, the sewage purification effect of the water curtain dust collector can be improved, the maintenance cost of the equipment is reduced, and the service life of the equipment is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0030] Figure 1 It is a schematic diagram of an automatic sewage filtering device for a water curtain dust collector provided by the present invention.

[0031] Figure 2 It is a control schematic diagram of a sewage automatic filtering device for a water curtain dust collector provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to enable persons skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0033] In view of the problem that the circulating water of the current water curtain dust collector has a lot of dust and is easy to be blocked, the present invention provides a sewage automatic filtering device for the water curtain dust collector, which solves the problem that the circulating water of the existing water curtain dust collector has a lot of dust and is easy to be blocked, can improve the sewage purification effect of the water curtain dust collector, reduce the maintenance cost of the equipment, and increase the service life of the equipment.

[0034] like Figure 1 and Figure 2As shown, an automatic sewage filtering device for a water curtain dust collector includes: a filter stand, a ratchet 9, a conveyor chain 3, a driving device and a filter paper box 12. The filter stand is arranged below the overflow pipe 2 of the water tank of the water curtain dust collector and above the sewage pool 7. The filter stand is a frame-shaped structure, and the filter paper box 12 is arranged on one end of the filter stand. The conveyor chain is arranged inside the filter stand, and the filter paper 5 pulled out from the filter paper box is laid flat on the conveyor chain 3, and the filter paper 5 is directly below the overflow pipe 2. The ratchet 9 is arranged on the filter stand and meshed with the conveyor chain 3; the driving device is connected to the ratchet wheel for driving the ratchet wheel to rotate, so as to drive the conveyor chain to move forward, so that the filter paper moves forward, and then replace the filter paper below the overflow pipe.

[0035] Specifically, when the water curtain dust collector 13 works normally, the sewage after dust treatment passes through the water tank 1 and is discharged through the overflow pipe 2, and enters the sewage pool 7 after being filtered by the filter paper 5. The filter stand is a frame structure, which can be formed by connecting the four sides of the enclosure. The conveyor chain is arranged in the filter stand, and the upper plane of the conveyor chain is a horizontal plane, and the conveyor chain circulates in the filter stand. At the same time, the chain gap of the conveyor chain is set so that the droplets filtered by the filter paper can fall into the sewage pool. Through the meshing transmission of the ratchet and the conveyor chain, when the ratchet rotates, the conveyor chain rotates forward, and when the ratchet stops, the conveyor chain stops. When the filter paper needs to be replaced, the ratchet is rotated so that the filter paper to be replaced moves forward with the conveyor chain, and then the new filter paper is pulled out from the filter paper box and placed under the overflow pipe. The device can solve the problem of sewage filtration and descaling, avoid the risk of scalding caused by manual maintenance in hot water, improve the sewage purification effect of the water curtain dust collector, reduce the maintenance cost of the equipment, and increase the service life of the equipment.

[0036] The device further comprises: a cleaning bucket 6; the cleaning bucket 6 is arranged below the other end of the filter stand and is used to receive the filter paper and waste residue dropped from the conveyor chain.

[0037] The device further comprises: a paper pressing roller 4; the paper pressing roller 4 is arranged on the filter stand and can be raised and lowered above the conveying chain 3, and is used to press the filter paper on the conveying chain.

[0038] Furthermore, the driving device includes: a driving cylinder 8 and a push rod (not shown in the figure); the driving cylinder is connected to one end of the push rod, and the other end of the push rod is drivingly connected to the ratchet; when the driving cylinder is ventilated, the push rod is driven to push the ratchet to rotate a set angle, so that the conveyor chain is transported forward a corresponding distance.

[0039] The device also includes: a solenoid valve 11; the driving cylinder 8 is connected to an external compressed air source through a compressed air pipe 10, and the solenoid valve 11 is arranged on the compressed air pipe 10 to control the on and off of the compressed gas of the driving cylinder 8.

[0040] The device also includes: a controller; the controller is connected to the electromagnetic valve signal, and is used to control the on or off of the electromagnetic valve, and control the electromagnetic valve to work in a cycle of on for 5 seconds and off for 30 seconds.

[0041] The device also includes: an industrial camera; the industrial camera is arranged above the overflow pipe to capture video of the filter paper below the overflow pipe; the controller is connected to the industrial camera signal, and identifies whether the filter paper needs to be replaced based on the image captured by the industrial camera, and controls the solenoid valve to be turned on when replacement is required, so that the conveyor chain conveys the filter paper forward.

[0042] The device further comprises: an alarm device; the alarm device is connected to the controller by signal, and the controller controls the alarm device to give an alarm when the filter paper is short.

[0043] Furthermore, the alarm device includes at least any one of the following: an indicator light, a buzzer, and an audible and visual alarm.

[0044] Furthermore, the controller adopts a PLC programmable controller or a microprocessor.

[0045] In actual application, the filter paper is installed on the roller inside the filter paper box 12. When installing for the first time, the filter paper is pulled out and laid flat on the chain of the conveyor chain 3, and fixed by the paper pressing roller 4. During normal operation, the PLC controller executes the program to issue a control instruction to control the solenoid valve 11 to work. The solenoid valve 11 works in a cycle of 5 seconds on and 30 seconds off. When the solenoid valve is turned on, the compressed air in the compressed air pipe 10 is used as the working medium to drive the cylinder 8 to move. The cylinder push rod is connected to the ratchet 9. The ratchet acts on the conveyor chain 3 to move forward, driving the filter paper to move forward and be recovered into the cleaning bucket 6. When the solenoid valve is disconnected, the cylinder, ratchet, and conveyor chain do not move.

[0046] It can be seen that the present invention provides an automatic sewage filtering device for a water curtain dust collector, a filtering stand is arranged on the sewage pool, a filter paper is arranged on the filtering stand under the overflow pipe of the water tank of the water curtain dust collector, and the filter paper is replaced by a conveyor chain. The problem that the circulating water of the existing water curtain dust collector has large dust and is easy to be blocked can be solved, the sewage purification effect of the water curtain dust collector can be improved, the maintenance cost of the equipment can be reduced, and the service life of the equipment can be increased.

[0047] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A sewage automatic filtering device for a water curtain dust collector, characterized in that: include: Filter stand, ratchet, conveyor chain, drive unit and filter paper box; The filtering frame is arranged below the overflow pipe of the water tank of the water curtain dust collector and above the sewage pool; The filter stand is a frame-shaped structure, the filter paper box is arranged on one end of the filter stand, the filter stand is provided with the conveying chain, the filter paper pulled out from the filter paper box is laid flat on the conveying chain, and the filter paper is placed directly below the overflow pipe; The ratchet wheel is arranged on the filter stand and meshedly connected with the conveying chain; The driving device is in driving connection with the ratchet wheel and is used for driving the ratchet wheel to rotate, so as to drive the conveying chain to move forward, so as to move the filter paper forward, and then replace the filter paper below the overflow pipe.

2. The automatic sewage filtering device for a water curtain dust collector according to claim 1 is characterized in that: Also includes: Cleaning bucket; The cleaning bucket is arranged below the other end of the filter stand and is used to receive the filter paper and waste residue dropped from the conveyor chain.

3. The automatic sewage filtering device for a water curtain dust collector according to claim 2 is characterized in that: Also includes: Paper pressing roller; The paper pressing roller is arranged on the filter stand and is arranged above the conveying chain in a liftable manner to press the filter paper on the conveying chain.

4. The automatic sewage filtering device for a water curtain dust collector according to claim 3 is characterized in that: The driving device comprises: a driving cylinder and a push rod; The driving cylinder is connected to one end of the push rod, and the other end of the push rod is drivingly connected to the ratchet wheel; When the driving cylinder is ventilated, the push rod is driven to push the ratchet wheel to rotate a set angle, so that the conveying chain is conveyed forward a corresponding distance.

5. The automatic sewage filtering device for a water curtain dust collector according to claim 4 is characterized in that: Also includes: Solenoid valve; The driving cylinder is connected to an external compressed air source through a compressed air pipe, and the solenoid valve is arranged on the compressed air pipe to control the on-off of the compressed air of the driving cylinder.

6. The automatic sewage filtering device for a water curtain dust collector according to claim 5 is characterized in that: Also includes: Controller; The controller is connected to the electromagnetic valve signal, and is used to control the on or off of the electromagnetic valve, and control the electromagnetic valve to work in a cycle of on for 5 seconds and off for 30 seconds.

7. The automatic sewage filtering device for a water curtain dust collector according to claim 6 is characterized in that: Also includes: Industrial cameras; The industrial camera is arranged above the overflow pipe to collect video of the filter paper below the overflow pipe; The controller is connected to the industrial camera signal, and identifies whether the filter paper needs to be replaced according to the image collected by the industrial camera, and controls the solenoid valve to be turned on when replacement is required, so that the conveyor chain conveys the filter paper forward.

8. The automatic sewage filtering device for a water curtain dust collector according to claim 7 is characterized in that: Also includes: Alarm device; The alarm device is connected to the controller signal, and the controller controls the alarm device to sound an alarm when the filter paper is short.

9. The automatic sewage filtering device for a water curtain dust collector according to claim 8, characterized in that: The alarm device includes at least any one of the following: an indicator light, a buzzer and an audible and visual alarm.

10. The automatic sewage filtering device for a water curtain dust collector according to claim 9, characterized in that: The controller adopts a PLC programmable controller or a microprocessor.

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