Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The pulse dust collector comprises a box body, a filtering mechanism, a pulse blowing mechanism and an ash discharging mechanism, wherein the box body is provided with an air inlet and an air outlet, the filtering mechanism comprises a plurality of filter bags arranged in the box body, the filter bags are arranged in a rectangular shape, the pulse blowing mechanism is used for carrying out pulse blowing cleaning on the filter bags, gas to be treated enters the box body through the air inlet, impurities in the gas are filtered by the filter bags and then fall into the ash discharging mechanism, the filtered gas is discharged out of the box body through the air outlet, and the ash discharging mechanism is used for discharging the impurities out of the box body;
The isolation mechanism is arranged between two adjacent rows of filter bags and comprises a fixed coaming fixedly connected in the box body, two movable coamings respectively movably arranged at two sides of the fixed coamings, and two groups of fixed coamings and the movable plates form a coamings structure and are shielded at the outer sides of the filter bags after the fixed coamings at two sides of a single filter bag reversely rotate;
The control mechanism is used for controlling the movement of the movable coaming.
Preferably, the fixed coaming is located at the center of the front and rear rows of filter bags, the two movable coapers in the same group are symmetrically distributed with respect to the fixed coaming, and the fixed coaming and the movable coaming are in linear arrangement.
Preferably, the control mechanism comprises a magnetic conduction plate fixedly connected to the movable coaming, a plurality of electromagnets arranged in the box body, reset torsion springs arranged on the movable coaming, and the electromagnets are respectively positioned on two sides of the movable coaming.
Preferably, the movable coaming comprises a rotating plate rotationally connected with the fixed coaming, a telescopic plate slidingly arranged in the rotating plate, and a tension spring for driving the telescopic plate to retract in the rotating plate.
Preferably, after the rotating plate rotates, the magnetic conduction plate is in contact with the electromagnet, and the control mechanism further comprises a magnetic block fixedly connected to the telescopic plate, the magnetic conduction plate is aligned with the magnetic block, and two ends of the magnetic conduction plate extend to two sides of the rotating plate respectively.
Preferably, the control mechanism is provided at an end of the isolation mechanism.
Preferably, the movable coaming positioning device further comprises a plurality of positioning mechanisms for positioning the movable coaming, wherein each positioning mechanism comprises a rotating rod rotatably arranged on the fixed coaming, supporting rings fixedly connected to two ends of the rotating rod respectively, and positioning plates fixedly connected to the supporting rings, and the rotating plates are clamped between the two positioning plates.
Preferably, the positioning mechanism further comprises a limiting rod fixedly connected to the supporting ring, blades fixedly connected to the supporting ring, the blades are blown to rotate when gas in the box flows, the positioning plate is driven to be clamped on the outer side of the rotating plate, and the positioning plate is clamped on the outer side of the rotating plate under the action of the gravity center of the positioning mechanism.
Preferably, the control mechanism further comprises a magnetic conduction strip fixedly connected to the supporting ring, the magnetic conduction strip is arc-shaped, and the attraction between the electromagnet and the magnetic conduction strip drives the positioning plate to rotate after the electromagnet is electrified.
Preferably, a slope is arranged at the bottom end of the positioning plate, and the positioning plate is pushed to rotate through the slope when the rotating plate is rotated and reset.
The beneficial effects of the invention are as follows:
1. According to the pulse dust collector, the rectangular isolation mechanisms are arranged in the box body, the single filter bag can be isolated from the filtering system after the movable coaming in the isolation mechanisms rotates, the function of dust cleaning treatment on the filter bags is realized under the condition of no shutdown, and when the pulse dust collector is used, the filter bags can be alternately cleaned, so that the influence on the air flow in the box body is greatly reduced, and the problem that all filter bags in the single filter bag are required to be isolated when the traditional pulse dust collector is used for dust cleaning is solved, and the influence on the air flow is large is solved.
2. According to the pulse dust collector, the movable coaming is of the telescopic structure, and the electromagnet is matched with the magnetic block and the magnetic conduction plate, so that the telescopic plate extends outwards after the rotary plate approaches the filter bag to be cleaned, the periphery of the filter bag is closed, and the problem that the movable coaming touches the filter bag in the rotating process is solved.
3. According to the pulse dust collector, through the gravity center design of the positioning mechanism and the cooperation of the blades and the air flow, the rotating plate is clamped, so that the fixed coaming and the movable coaming stably keep a straight line shape, the air flow flowing in the box body can normally flow and normally contact with the filter bag, the filter bag can filter the air, and when the ash cleaning work is started, the positioning plate is automatically driven to rotate by utilizing the action between the electromagnet and the magnetic conducting strip, the positioning constraint of the rotating plate is automatically released, and after the ash cleaning is finished, the rotating plate can be automatically reset, the structure is simplified, the automation degree is high, and the use is convenient.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1-8, the pulse dust collector according to the embodiment of the invention comprises a box body 1, a filtering mechanism, a pulse blowing mechanism 3 and an ash discharging mechanism 4, wherein an air inlet 11 and an air outlet 12 are arranged on the box body 1, the filtering mechanism comprises a plurality of filter bags 2 arranged in the box body 1, the filter bags 2 are arranged in a rectangular shape, the pulse blowing mechanism 3 is used for carrying out pulse blowing cleaning on the filter bags 2, gas to be treated enters the box body 1 through the air inlet 11, impurities in the gas are filtered by the filter bags 2 and then fall into the ash discharging mechanism 4, the filtered gas is discharged out of the box body 1 through the air outlet 12, and the ash discharging mechanism 4 is used for discharging the impurities out of the box body 1;
the isolation mechanism 5 is arranged between two adjacent rows of filter bags 2, and the isolation mechanism 5 comprises a fixed coaming 51 fixedly connected inside the box body 1, two movable coamings 52 respectively movably arranged at two sides of the fixed coamings 51, and two groups of fixed coamings 51 and the movable plates form a coamings structure and are shielded outside the filter bags 2 after the fixed coamings 51 at two sides of a single filter bag 2 reversely rotate;
The control mechanism 6 is used to control the movement of the movable shroud 52.
Specifically, the box 1, the filtering mechanism, the pulse dust removing mechanism and the ash discharging structure adopt related structures in the existing pulse bag type dust collector, the filter bag 2 is made of filtering materials, such as polyester fiber, glass fiber, PPS polyphenylene sulfide and the like, and the filtering mechanism also comprises a plurality of bag cages arranged in the box 1, wherein the bag cages are used for supporting the filter bag 2, so that the filter bag 2 can keep a shape in the filtering process.
The pulse blowing system comprises pulse valves, blowing pipes and air bags, wherein the air bags are used for providing air sources, the pulse valves are used for controlling high-pressure air in the air bags to be blown into the filter bags 2 through the blowing pipes, the pulse valves are used for receiving signals of a control unit in a dust remover and timely opened and closed, the high-pressure air is blown into the filter bags 2 to remove dust deposited on the filter bags 2, the blowing pipes are connected with the pulse valves and uniformly blow the high-pressure air to the filter bags 2, the number and positions of the blowing pipes are designed according to the arrangement of the filter bags 2 so as to ensure that each filter bag 2 can obtain effective dust removal, and the air bags are used for storing the high-pressure air and providing stable air sources for the pulse valves.
The ash unloading mechanism 4 comprises an ash bucket and an unloading device, wherein the ash bucket is arranged at the bottom end of the box body 1, and the unloading device is used for discharging impurities in the ash bucket out of the box body 1.
In the initial situation, as shown in fig. 2 and 6, the fixed coaming 51 and the movable coaming 52 are in a straight line shape and do not enclose the filter bag 2, the air flow flowing in the box body 1 can normally flow and normally contact with the filter bag 2, the filter bag 2 can filter the air, when the air is dedusted, the air to be processed is sent into the box body 1 through the air inlet 11 and contacts with the filter bag 2, the dust and other impurities in the air are filtered through the filter bag 2, the filtered clean air is discharged out of the box body 1 through the air outlet 12, the impurities in the air are filtered by the filter bag 2 and then fall into the ash bucket, and the impurities in the ash bucket are discharged through the discharger.
When the dust collector works for a period of time, when the dust removal treatment is required to be carried out on the filter bags 2, the movable coaming plates 52 are started to rotate, the movable coaming plates 52 on the front side and the rear side of the single filter bag 2 are reversely rotated, the front movable coaming plate 52 and the rear movable coaming plate 52 are mutually closed and are closed on the outer sides of the filter bags 2 after rotating, the movable coaming plates 52 are changed from a state shown in fig. 6 to a state shown in fig. 8, the isolation mechanism 5 isolates the filter bags 2so as to prevent air flow in the box body 1 from contacting with the filter bags 2, the pulse valve is started, high-pressure air is sprayed into the filter bags 2, instant pulse impact is carried out on the filter bags 2 by utilizing the high-pressure air, dust impurities on the surfaces of the filter bags 2 are removed, so that the self-cleaning degree of the filter bags 2 is improved, after dust removal, the movable coaming plates 52 are started to rotate to an initial state, and the filter bags 2 can continue to carry out filtering work.
On the premise of reducing the influence of air flow, the dust removal can be performed on part of the filter bags 2 at the same time as required. In addition, the conditions of the surfaces of the filter bags 2 in the dust remover are not necessarily identical, so that not all the filter bags 2 need to be cleaned, and in the conventional scheme of dividing the pulse dust remover into a plurality of filter chambers to clean the dust, the problem of unnecessary dust cleaning is also solved, and the pulse dust remover can detect the pressure of each filter bag 2 when in use, so that the dust of each filter bag 2 is cleaned in a targeted manner, thereby improving the problem.
As shown in fig. 2-6, the fixed shroud 51 is located at the center of the front and rear rows of filter bags 2, two movable shroud 52 of the same group are symmetrically distributed about the fixed shroud 51, and the fixed shroud 51 and the movable shroud 52 are arranged in a straight line.
Specifically, initially, the movable shroud 52 and the fixed shroud 51 of the same row are in a straight line shape to reduce the influence on the gas flow inside the case 1.
As shown in fig. 2-8, the control mechanism 6 comprises a magnetic conductive plate 61 fixedly connected to the movable enclosing plate 52, a plurality of electromagnets 62 arranged in the box body 1, wherein the electromagnets 62 are respectively positioned at two sides of the movable enclosing plate 52, and a reset torsion spring arranged on the movable enclosing plate 52.
Specifically, the electromagnet 62 can be arranged in the box body 1 or on the fixed coaming 51, the electromagnet 62 is not electrified initially, the movable coaming 52 and the fixed coaming 51 keep a straight line shape under the action of the reset torsion spring, when the filter bag 2 is cleaned, the electromagnet 62 close to one side of the filter bag 2 is started to be electrified, the electromagnet 62 has magnetism after being electrified and attracts the magnetic conductive plate 61 to drive the movable coaming 52 to rotate to be enclosed outside the filter bag 2, after the dust is cleaned, the electromagnet 62 is powered off, and the movable coaming 52 automatically rotates to an initial state.
By controlling the alternating energization of the plurality of groups of electromagnets 62, the function of alternately isolating the filter bags 2 can be realized, so that the individual dust removal treatment is performed on each filter bag 2.
As shown in fig. 2 to 8, the movable shroud 52 includes a rotating plate 521 rotatably connected to the fixed shroud 51, a telescopic plate 522 slidably provided inside the rotating plate 521, and a tension spring 523 for driving the telescopic plate 522 to retract inside the rotating plate 521.
Specifically, the reset torsion spring is arranged on the rotating shaft of the rotating plate 521, a chute for accommodating the expansion plate 522 is arranged in the rotating plate 521, when the interval between two adjacent filter bags 2 is smaller, in order to avoid the movable coaming 52 touching the filter bags 2 in the rotating process, the movable coaming 52 is arranged in a telescopic structure, in fig. 6, the expansion plate 522 is initially contracted in the rotating plate 521, so that the rotating plate 521 can rotate to be close to the filter bags 2 to be cleaned, the movable coaming 52 does not touch the filter bags 2, after the rotating plate 521 is close to the filter bags 2 to be cleaned, the expansion plate 522 extends outwards, and in fig. 8, after the two groups of expansion plates 522 extend, the expansion plate 522 is together with the rotating plate 521 and the fixed coaming 51 to hold up Zhou Cewei of the filter bags 2.
As shown in fig. 4-5, after the rotating plate 521 rotates, the magnetic conductive plate 61 contacts with the electromagnet 62, and the control mechanism 6 further includes a magnetic block 63 fixedly connected to the expansion plate 522, where the magnetic conductive plate 61 is aligned with the magnetic block 63, and two ends of the magnetic conductive plate 61 extend to two sides of the rotating plate 521 respectively.
Specifically, the two ends of the tension spring 523 are respectively connected to the sliding groove and the expansion plate 522, the magnetic conductive plate 61 passes through the sliding groove of the rotating plate 521, and the magnetic conductive plate 61 is horizontally aligned with the magnetic block 63. When the filter bag 2 is cleaned, the electromagnet 62 is electrified to attract the magnetic conduction plate 61 and drive the rotary plate 521 to rotate, after the rotary plate 521 rotates, the magnetic conduction plate 61 is contacted with the electromagnet 62 and magnetized, the magnetic conduction plate 61 is magnetized, and the magnetism of one side of the magnetic conduction plate 61 opposite to the magnetic block 63 is the same, so that the expansion plate 522 is pushed to extend outwards under the action of the homopolar repulsive force. The repulsive force between the magnetized magnetic conductive plate 61 and the magnetic block 63 is larger than the acting force of the tension spring 523 on the expansion plate 522.
As shown in fig. 2-3, the control mechanism 6 is provided at the end of the isolating mechanism 5.
Specifically, the control mechanism 6 is disposed at the top end of the isolation mechanism 5 to reduce the influence on the gas flow in the tank 1, and according to the specific situation, the control mechanism 6 may also be disposed at the bottom end of the isolation mechanism 5.
Example two
As shown in fig. 2-7, in a first comparative example, another embodiment of the present invention further includes a plurality of positioning mechanisms 7 for positioning the movable shroud 52, where the positioning mechanisms 7 include a rotating rod 71 rotatably disposed on the fixed shroud 51, supporting rings 72 fixedly connected to two ends of the rotating rod 71, and positioning plates 73 fixedly connected to the supporting rings 72, and the rotating plate 521 is clamped between the two positioning plates 73.
Specifically, in the initial state, the positioning plates 73 are clamped at the front and rear sides of the rotating plate 521 to prevent the rotating plate 521 from rotating, so that the rotating plate 521 and the fixed coaming 51 stably maintain a linear shape, and the problem that the rotating plate 521 affects the air flow in the box 1 after rotating when ash is not removed is solved.
As shown in fig. 4-7, the positioning mechanism 7 further includes a limiting rod 74 fixedly connected to the supporting ring 72, a vane 75 fixedly connected to the supporting ring 72, and the vane 75 is blown to rotate when the gas in the box 1 flows, and drives the positioning plate 73 to be clamped at the outer side of the rotating plate 521, and the positioning plate 73 is clamped at the outer side of the rotating plate 521 under the action of the gravity center of the positioning mechanism 7.
Specifically, the whole positioning mechanism 7 is eccentric structure, initially, positioning mechanism 7 rests on the revolving plate 521 under the action of gravity center, at this moment, the gag lever post 74 is supported on the top of revolving plate 521, and the locating plate 73 is blocked in the outside of revolving plate 521, when filtering gas, the inside air current of box 1 contacts with blade 75 and promotes blade 75 and support ring 72 rotation, further makes gag lever post 74 support revolving plate 521, and then ensures that locating plate 73 is stable blocks revolving plate 521, prevents revolving plate 521 rotation, through the gravity center design of positioning mechanism 7, in addition the cooperation of blade 75 and air current, the positional stability of revolving plate 521 in the filtration process has been improved.
As shown in fig. 4-7, the control mechanism 6 further includes a magnetic strip 64 fixedly connected to the support ring 72, the magnetic strip 64 is arc-shaped, and the attractive force between the electromagnet 62 and the magnetic strip 64 drives the positioning plate 73 to rotate after the electromagnet is electrified.
Specifically, when the filter bag 2 is cleaned, the electromagnet 62 is started to be electrified, and the electromagnet 62 is attracted with the magnetic conductive strip 64 after being electrified, so that the support ring 72 and the positioning plate 73 are driven to rotate, the positioning plate 73 is enabled to be separated from the rotating plate 521, and after the constraint of the positioning plate 73 is lost, the suction force between the electromagnet 62 and the magnetic conductive plate 61 can drive the rotating plate 521 to rotate.
Taking the positioning mechanism 7 on the right side in fig. 4 as an example, after the electromagnet 62 is electrified, the left end of the electromagnet 62 attracts the magnetic strip 64 to drive the supporting ring 72 to rotate anticlockwise, so that the positioning plate 73 rotates to the upper side of the rotating plate 521, and the right end of the electromagnet 62 attracts the magnetic plate 61 on the rotating plate 521 to drive the rotating plate 521 to rotate.
A gap may be left between the magnetic strip 64 and the electromagnet 62, and a groove for the magnetic strip 64 to move may be provided in the electromagnet 62.
As shown in fig. 7, a slope is provided at the bottom end of the positioning plate 73, and the positioning plate 73 is pushed to rotate by the slope when the rotating plate 521 is rotated and reset.
Specifically, when the dust is removed, the rotating plate 521 rotates and covers the outside of the filter bag 2, at this time, the positioning plate 73 may be reset to the initial state, after the dust removal is completed, the rotating plate 521 rotates and contacts with the slope on the positioning plate 73, the positioning plate 73 is pushed to rotate, and then the rotating plate 521 may rotate to the initial position.
The dust removing device comprises a box body 1, a filter bag 2, a gas inlet 11, a gas outlet 12, a dust removing device, a dust discharging device, a dust hopper, a dust discharging device and a dust discharging device.
When the dust collector needs to carry out dust cleaning treatment on the filter bag 2 after a period of working time, the electromagnet 62 is electrified and then attracts the magnetic strip 64, so that the supporting ring 72 and the positioning plate 73 are driven to rotate, the positioning plate 73 is rotated to be separated from the rotating plate 521, after the constraint of the positioning plate 73 is lost, the attraction between the electromagnet 62 and the magnetic plate 61 drives the rotating plate 521 to rotate, the rotating plate 521 is close to the filter bag 2 to be cleaned, after the rotating plate 521 rotates, the magnetic plate 61 is contacted with the electromagnet 62 and magnetized, the magnetism of one side of the magnetic plate 61 opposite to the magnetic block 63 is the same after being magnetized, the telescopic plates 522 are pushed to extend outwards under the action of the same-polarity repulsive force, the movable coamings 52 on the front side and the rear side of the single filter bag 2 are reversely rotated, and after the two groups of telescopic plates 522 extend out, the telescopic plates 522 are together with the rotating plate 521 and the fixed coamings 51 to close the filter bag 2, the filter bag 2 is isolated, so that air flow in the box body 1 is prevented from contacting with the filter bag 2;
After the ash removal, the electromagnet 62 is powered off, the telescopic plate 522 is retracted inside the rotary plate 521 under the pulling of the tension spring 523, the rotary plate 521 is rotated to an initial state, the positioning plate 73 clamps the rotary plate 521 again, the rotary plate 521 and the fixed coaming 51 stably keep a linear shape, and the filter bag 2 can continue to carry out the filtering work, so that the function of carrying out the ash removal on the filter bag 2 under the condition of no shutdown is realized.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.