CN112316571B - Dust remover with blowback device for cement production - Google Patents
Dust remover with blowback device for cement production Download PDFInfo
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- CN112316571B CN112316571B CN202010944401.8A CN202010944401A CN112316571B CN 112316571 B CN112316571 B CN 112316571B CN 202010944401 A CN202010944401 A CN 202010944401A CN 112316571 B CN112316571 B CN 112316571B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0233—Other waste gases from cement factories
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Abstract
The invention discloses a dust remover with a back-blowing device for cement production, which comprises a dust suction port and is characterized in that: the dust collector is characterized in that an air blower is connected to one side of the dust suction port, a three-way regulating valve is installed on the other side of the air blower, a channel of the three-way regulating valve is connected with a backflushing filter box, a backflushing filter screen is installed inside the backflushing filter box, a drain port is installed at the tail end of the backflushing filter screen, a backflushing valve is installed at the front end of the backflushing filter screen, a group partition plate is installed in the middle of the purification box, the periphery of the group partition plate is hollow, a solid collecting box is installed at the bottom of the purification box, a heating plate is installed at the bottom of the purification box, the bottom of the reservoir is connected with the backflushing pump through a water pipe, and the tail end of the drain port is connected with a drain valve.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a dust collector with a back-blowing device for cement production.
Background
The cement is a powdery hydraulic inorganic cementing material, is added with water and stirred into slurry, can be hardened in the air or better in water, can firmly bond sand, stone and other materials together, is an important cementing material for a long time, is widely applied to civil construction, water conservancy, national defense and other projects, is a building base material with very large use amount, is a cement producing country in China, is also a cement using country, is a traditional manufacturing industry for cement producing enterprises, is increasingly impacted by policy and market due to high energy consumption, high pollution and high yield, improves the efficiency, saves the energy consumption and reduces the emission, is necessary for survival and development of each cement producing enterprise, can generate a large amount of dust in the production process of the cement, and adopts the traditional cyclone dust removal, the traditional, The modes of cloth bag dust removal, magnetic field dust removal and the like have unsatisfactory dust removal effect, low dust removal efficiency and incomplete dust removal, so that the design of the dust remover with the back flushing device for the cement production, which has strong practicability and can carry out back flushing on the dust remover, is very necessary.
Disclosure of Invention
The invention aims to provide a dust remover with a back-blowing device for cement production, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a cement manufacture is with dust remover that has blowback device, includes dust absorption mouth, its characterized in that: one side of the dust collection port is connected with a blower, the other side of the blower is provided with a three-way regulating valve, one channel of the three-way regulating valve is connected with a backflushing filter tank, the other channel of the three-way regulating valve is connected with a backflushing water pump, in the working process of the dust remover, the three-way regulating valve is rotated until the blower is connected with the backflushing filter tank, the air in the production site can be sucked into the dust remover for filtering and purifying, the three-way regulating valve is rotated to the reverse flushing water pump to be connected with the reverse flushing filter tank, the backflushing filter screen can be backflushed and cleaned by using a backflushing water pump to remove residual dust particles, the working efficiency is improved, the three-way regulating valve can also be opened at a certain angle, so that the wind in the pipeline can bring out the water in the liquid level holding pipe under the condition that the backwashing water pump does not work, adsorb dust in the air and assist the backwashing filter screen to filter the dust in the air.
According to the technical scheme, the internally mounted of recoil filter box has the recoil filter screen, the drain is installed to the end of recoil filter screen, the recoil valve is installed to the front end of recoil filter screen, and after the recoil filter screen was used for a long time, its mesh probably is blockked up by the dust granule, can open the recoil water pump through closing the recoil valve this moment, and inside the recoil filter box can be gone into with the water to back flush the water pump, because closing of recoil valve this moment, rivers can flow from the head of recoil filter screen to carry out the back flush to the recoil filter screen outside-in, go out adnexed dust with the inside mesh of recoil filter screen and wash, and discharge into the sewage pipes through the drain.
According to the technical scheme, the right side of the backflushing filter box is connected with a circulating pipeline, a circulating valve is installed in the middle of the circulating pipeline, the tail end of the circulating pipeline is connected with a purifying box, air is sucked into the backflushing filter box from a production site by an air blower, dust particles in the air can be filtered when the air passes through a backflushing filter screen, the air becomes clean air, and the clean air can be discharged into the purifying box through the circulating pipeline to perform subsequent processes.
According to the technical scheme, the inner wall of the purifying box is uniformly provided with the spray heads all around, the atomizing filter screen is installed at the top of the purifying box, after the air at the production site is sucked into the purifying box by the air blower, although the air is filtered by the backflushing filter screen, a small amount of dust can be remained in the air, the dust in the air can be attached to and fall into the solid collecting box at the bottom of the purifying box by the water sprayed out of the spray heads, meanwhile, partial moisture can be blown into the air by residual airflow in the purifying box, the humidity in the air can be increased, so that the dust in the air is adsorbed by the moisture, the dust pollution at the production site is reduced, the atomizing filter screen can filter the moisture adsorbed with the dust, and the moisture sprayed out of the purifying box is atomized.
According to the technical scheme, the group's baffle is installed to the centre of purifying box, be cavity around the group's baffle, solid collecting box is installed to the bottom of purifying box, the hot plate is installed to the bottom of purifying box, after the dust in the air of shower nozzle blowout water in with the purifying box adsorbs the back, these moisture that are attached to the dust can fall on the group's baffle to in flowing into solid collecting box through the hole on the group's baffle, open the hot plate and can heat the inside sewage of solid collecting box until the boiling, the air of the first half of purifying box and the latter half can also be cut off to the group's baffle, make the air current of purifying box the latter half relatively stable, be favorable to follow-up collection steam.
According to the technical scheme, one side trachea of purifying box is connected with the aspirator pump, the other end of aspirator pump is connected with the condenser pipe, the one end water piping connection of condenser pipe has the cistern, opens the aspirator pump, and during the steam after will heating inhales the condenser pipe, the condenser pipe can be with steam cooling and liquefaction, and the water after the liquefaction can flow into through the water pipe and store in the cistern, and the moisture in the solid collecting box is whole to evaporate the back, can take out the solid collecting box to with the inside remaining dust solid recovery of collecting box recycle.
According to the technical scheme, the bottom of the reservoir is connected with a back flushing water pump through a water pipe, the tail end of the drain outlet is connected with a drain valve, after the back flushing filter screen works for a long time to cause mesh blockage, the air blower can be closed firstly, the three-way regulating valve is rotated clockwise until the water pipe of the back flushing water pump is unblocked, the back flushing valve and the circulating valve are closed, and the blow-down valve is opened, then the backwashing water pump is turned on, the backwashing water pump can pump the water in the reservoir into the backwashing filter tank through the water pipe, at the moment, because the backwashing valve is in a closed state, the water flow can flow out from the head part of the backwashing filter screen, and the backflushing filter screen is backflushed from outside to inside, the dust attached to the meshes in the backflushing filter screen is flushed off, and the sewage is discharged into a sewage discharge pipeline through a sewage discharge outlet, finally the washed sewage flows into a solid collecting box at the bottom of the purifying box, and then the sewage is heated and recycled.
According to the technical scheme, the bottom of the reservoir is connected with a liquid level maintaining pipe, the liquid level maintaining pipe is connected between the backwashing water pump and the three-way regulating valve, the liquid level maintaining pipe is connected at the bottom of the reservoir, the other end of the liquid level maintaining pipe is connected between the backwashing water pump and the three-way regulating valve, the mounting height of the reservoir is higher than that of the backwashing water pump, therefore, no matter the back flushing water pump is in an opening or closing state, water is always kept in the water pipe in front of the back flushing water pump, the step of pumping water out of the reservoir can be reduced in the process of stopping and restarting, the time is saved, the three-way regulating valve can be opened at a certain angle in the working process of the blower, so that the wind in the pipeline can bring out the water in the liquid level holding pipe under the condition that the backwashing water pump does not work, adsorb dust in the air and assist the backwashing filter screen to filter the dust in the air.
According to the technical scheme, the method is characterized in that: the method comprises the following steps:
a. turning on the blower, and sucking air in the production site into the pipeline through the dust suction port by the blower;
b. air in the production field passes through the three-way regulating valve and then reaches the backflushing filter box, and is discharged into the purification box after being filtered by the backflushing filter screen;
c. the water sprayed by the spray head adsorbs dust in the air and falls into the solid collecting box at the bottom of the purifying box;
d. the heating plate is opened, the bottom of the purification box is heated by the heating plate, so that sewage formed by dust and water in the solid collection box is boiled, the air suction pump is opened, vapor evaporated by boiling is sucked into the condensation pipe by the air suction pump, and the vapor is cooled by the condensation pipe to be changed into water and stored in the water storage pool, so that the effect of recycling the water source can be achieved;
e. after the backwashing filter screen works for a long time to cause mesh blockage, the air blower can be closed firstly, the three-way regulating valve is rotated clockwise until the water pipe of the backwashing water pump is unblocked, the backwashing valve and the circulation valve are closed, the blow-down valve is opened, then the backwashing water pump is opened, the backwashing water pump can pump water in the reservoir into the backwashing filter tank through the water pipe, at the moment, because the backwashing valve is in a closed state, water flows can flow out of the head of the backwashing filter screen and backflush the backwashing filter screen, dust attached to meshes in the backwashing filter screen is flushed down and discharged into a blow-down pipeline through a blow-off port, and finally flushed sewage flows into a solid collecting box at the bottom of the purifying tank;
compared with the prior art, the invention has the following beneficial effects: the dust remover can be back-flushed, and the invention,
(1) through the arrangement of the spray head, after air in a production site is sucked into the purification box by the air blower, a small amount of dust can be remained in the air through the filtering of the backflushing filter screen, water sprayed out of the spray head can attach the dust in the air and fall into the solid collection box at the bottom of the purification box, meanwhile, residual airflow in the purification box can blow partial moisture into the air, so that the humidity in the air can be increased, the dust in the air is adsorbed by the moisture, the dust pollution in the production site is reduced, the moisture adsorbed with the dust can be filtered by the atomizing filter screen, and the moisture blown out of the purification box is atomized;
(2) by arranging the backwashing water pump, after the backwashing filter screen works for a long time to cause mesh blockage, the air blower can be firstly closed, the three-way regulating valve is clockwise rotated until a water pipe of the backwashing water pump is unblocked, the backwashing valve and the circulation valve are closed, the blow-down valve is opened, then the backwashing water pump is opened, the backwashing water pump can pump water in the reservoir into the backwashing filter tank through the water pipe, at the moment, because the backwashing valve is in a closed state, water flow can flow out of the head of the backwashing filter screen, backwashing is carried out on the backwashing filter screen from outside to inside, dust attached to meshes in the backwashing filter screen is flushed down and discharged into a blow-down pipeline through a blow-off port, and finally flushed sewage flows into a solid collecting box at the bottom of the purification tank;
(3) through the solid collecting box, after dust in the air in the purifying box is adsorbed by water sprayed by the spray head, the moisture attached with the dust falls onto the group partition plate and flows into the solid collecting box through the holes on the group partition plate, the sewage in the solid collecting box can be heated until the sewage is boiled by opening the heating plate, at the moment, the air suction pump is opened, the heated steam is sucked into the condensing pipe, the condensing pipe can cool and liquefy the steam, the liquefied water flows into the reservoir through the water pipe to be stored, after all the moisture in the solid collecting box is evaporated, the solid collecting box can be taken out, and the dust solid remained in the collecting box can be recycled;
(4) the liquid level retaining pipe is arranged and connected to the bottom of the water storage tank, the other end of the liquid level retaining pipe is connected between the backwashing water pump and the three-way regulating valve, and the installation height of the water storage tank is higher than that of the backwashing water pump, so that no matter the backwashing water pump is in an opening or closing state, water is always retained in the water pipe in front of the backwashing water pump, the step of pumping the water out of the water storage tank can be reduced in the process of stopping and re-opening, the time is saved, in addition, the three-way regulating valve can be opened for a certain angle in the working process of the air blower, so that the air in the pipeline can take the water out of the liquid level retaining pipe under the condition that the backwashing water pump does not work, the dust in the air is adsorbed, and the dust in the air is filtered by the backwashing filter screen in an auxiliary mode;
drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall elevational view of the present invention;
FIG. 2 is a schematic view of the working state of the three-way regulating valve when the dust remover of the present invention is used for filtering;
FIG. 3 is a schematic view of the working state of a three-way regulating valve when the dust remover works in a back washing mode;
FIG. 4 is a schematic view of the operation state of the three-way regulating valve when the water is added to the dust remover for filtration;
in the figure: 1. a dust suction port; 2. a blower; 3. a three-way regulating valve; 4. a backflushing filter box; 5. backflushing the filter screen; 6. a recoil valve; 7. a sewage draining outlet; 8. a blowoff valve; 9. a flow-through valve; 10. a purification box; 11. a spray head; 12. atomizing a filter screen; 13. a group partition plate; 14. heating plates; 15. a solid collection box; 16. a getter pump; 17. a condenser tube; 18. a reservoir; 19. a liquid level holding pipe; 20. a backwash water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a cement manufacture is with dust remover that has blowback device, includes dust absorption mouth 1, its characterized in that: one side of the dust suction port 1 is connected with an air blower 2, the other side of the air blower 2 is provided with a three-way regulating valve 3, one channel of the three-way regulating valve 3 is connected with a backflushing filter tank 4, the other channel of the three-way regulating valve 3 is connected with a backflushing water pump 20, in the working process of the dust remover, the three-way regulating valve 3 is rotated until the air blower 2 is connected with the backflushing filter tank 4, air in a production site can be sucked into the dust remover for filtering and purifying, the three-way regulating valve 3 is rotated until the backflushing water pump 20 is connected with the backflushing filter tank 4, the backflushing filter screen 5 can be backflushed by the backflushing water pump 20 to remove residual dust particles, the working efficiency is improved, the three-way regulating valve 3 can also be opened by a certain angle, so that air in a pipeline can take out water in the liquid level retaining pipe 19 under the condition that the backflushing water pump 20 does not work, the dust in the air is adsorbed, and the backflushing filter screen 5 is assisted to filter the dust in the air;
a backflushing filter screen 5 is arranged in the backflushing filter tank 4, a drain outlet 7 is arranged at the tail end of the backflushing filter screen 5, a backflushing valve 6 is arranged at the front end of the backflushing filter screen 5, meshes of the backflushing filter screen 5 can be blocked by dust particles after the backflushing filter screen 5 is used for a long time, at the moment, the backflushing valve 6 can be closed, the backflushing pump 20 is opened, the backflushing pump 20 can discharge water into the backflushing filter tank 4, at the moment, because the backflushing valve 6 is closed, water flow can flow out from the head of the backflushing filter screen 5, backflushing is carried out on the backflushing filter screen 5 from outside to inside, the attached dust discharged from the meshes in the backflushing filter screen 5 is flushed down and is discharged into a sewage discharge pipeline through the drain outlet 7;
the right side of the backflushing filter box 4 is connected with a circulation pipeline, the middle of the circulation pipeline is provided with a circulation valve 9, the tail end of the circulation pipeline is connected with a purification box 10, after the air is sucked into the backflushing filter box 4 from a production site by the blower 2, dust particles in the air can be filtered when the air passes through the backflushing filter screen 5, the air becomes clean air, and then the clean air is discharged into the purification box 10 through the circulation pipeline for subsequent processes;
the periphery of the inner wall of the purifying box 10 is uniformly provided with the spray heads 11, the top of the purifying box 10 is provided with the atomizing filter screen 12, after the air blower 2 sucks the air in the production site into the purifying box 10, although the air is filtered by the backflushing filter screen 5, a small amount of dust still remains in the air, the water sprayed out of the spray heads 11 can attach the dust in the air and fall into the solid collecting box 15 at the bottom of the purifying box 10, meanwhile, the residual air flow in the purifying box 10 can blow partial moisture into the air, so that the humidity in the air can be increased, the dust in the air is adsorbed by the moisture, the dust pollution in the production site is reduced, the atomizing filter screen 12 can filter the moisture adsorbed with the dust, and atomizes the moisture blown out of the purifying box 10;
a group partition plate 13 is arranged in the middle of the purification box 10, the periphery of the group partition plate 13 is hollow, a solid collection box 15 is arranged at the bottom of the purification box 10, a heating plate 14 is arranged at the bottom of the purification box 10, after water is sprayed by the spray head 11 to adsorb dust in the air in the purification box 10, the water attached with the dust falls on the group partition plate 13 and flows into the solid collection box 15 through a hole in the group partition plate 13, the heating plate 14 is opened to heat the sewage in the solid collection box 15 until the sewage is boiled, and the group partition plate 13 can also partition the air in the upper half part and the lower half part of the purification box 10, so that the airflow in the lower half part of the purification box 10 is relatively stable, and the subsequent collection of steam is facilitated;
an air pipe on one side of the purification box 10 is connected with an air suction pump 16, the other end of the air suction pump 16 is connected with a condensing pipe 17, one end of the condensing pipe 17 is connected with a water storage tank 18 through a water pipe, the air suction pump 16 is started, heated steam is sucked into the condensing pipe 17, the condensing pipe 17 cools and liquefies the steam, the liquefied water flows into the water storage tank 18 through the water pipe to be stored, after all moisture in the solid collection box 15 is evaporated, the solid collection box 15 can be taken out, and dust and solid remained in the collection box are recycled;
the bottom of the reservoir 18 is connected with a backwash water pump 20 through a water pipe, the tail end of the drain outlet 7 is connected with a drain valve 8, after the backwash filter screen 5 works for a long time to cause mesh blockage, the air blower 2 can be closed firstly, the three-way regulating valve 3 is rotated clockwise until the water pipe of the backwash water pump 20 is unblocked, the backwash valve 6 and the circulating valve 9 are closed, the drain valve 8 is opened, then the backwash water pump 20 is opened, the backwash water pump 20 can pump water in the reservoir 18 into the backwash filter box 4 through the water pipe, at the moment, because the backwash valve 6 is in a closed state, water flows out from the head of the backwash filter screen 5 and performs backwash on the backwash filter screen 5 from outside to inside, dust attached to meshes in the backwash filter screen 5 is flushed and discharged into a drain pipeline through the drain outlet 7, finally flushed sewage flows into a solid collecting box 15 at the bottom of the purifying box 10, then heating the sewage and recycling;
the bottom of the reservoir 18 is connected with a liquid level maintaining pipe 19, the liquid level maintaining pipe 19 is connected between a back flushing water pump 20 and the three-way regulating valve 3, the liquid level maintaining pipe 19 is connected at the bottom of the reservoir 18, the other end of the liquid level maintaining pipe 19 is connected between the back flushing water pump 20 and the three-way regulating valve 3, the mounting height of the reservoir 18 is higher than that of the back flushing water pump 20, therefore, no matter the back flushing water pump 20 is in an opening or closing state, water is always kept in the water pipe in front of the back flushing water pump 20, the step of pumping water from the reservoir 18 during the stop-restart process is reduced, saving time, and can open certain angle with three-way control valve 3 at the air-blower 2 in-process for the wind in the pipeline can take out the water in liquid level holding tube 19 under the circumstances that backwash water pump 20 does not work, and adsorb the dust in the air, supplementary backwash filter screen 5 filters the dust in the air.
The working principle is as follows:
in the working process of the dust remover, the three-way regulating valve 3 is rotated to the air blower 2 to be connected with the backflushing filter tank 4, air in a production site can be sucked into the dust remover to be filtered and purified, the three-way regulating valve 3 is rotated to the backflushing water pump 20 to be connected with the backflushing filter tank 4, the backflushing filter screen 5 can be backflushed by the backflushing water pump 20 to remove residual dust particles and improve the working efficiency, the three-way regulating valve 3 can also be opened by a certain angle, so that air in a pipeline can take out water in the liquid level retaining pipe 19 under the condition that the backflushing water pump 20 does not work, dust in air is adsorbed, the backflushing filter screen 5 is assisted to filter dust in air, after the backflushing filter screen 5 is used for a long time, meshes of the backflushing water pump 20 can be blocked by the dust particles, at the moment, the backflushing water can be discharged into the backflushing filter tank 4 by the backflushing water pump 20, at the moment, because the backflushing valve 6 is closed, water flow flows out from the head of the backflushing filter screen 5, the backflushing filter screen 5 is backflushed from outside to inside, dust attached to meshes in the backflushing filter screen 5 is flushed and discharged into a sewage discharge pipeline through the sewage discharge port 7, the air blower 2 sucks air into the backflushing filter box 4 from a production site, dust particles in the air are filtered when the air passes through the backflushing filter screen 5 to become clean air, the clean air is discharged into the purifying box 10 through the circulating pipeline to carry out subsequent processes, a small amount of dust still remains in the air after the air blower 2 sucks the air in the production site into the purifying box 10, the dust in the air can be attached to and fall into the solid collecting box 15 at the bottom of the purifying box 10 through the water sprayed from the spray head 11, and meanwhile, the residual air flow in the purifying box 10 blows partial moisture into the air, can increase the humidity in the air, make the dust in the air adsorbed by the moisture, in order to reduce the dust pollution of the production site, the atomization filter 12 can filter the moisture that has adsorbed the dust, and will blow out the moisture atomization of the purge bin 10, after the shower nozzle 11 squirts the dust in the air in the purge bin 10, these moisture that has attached to the dust will fall on the group's baffle 13, and flow into the solid collecting box 15 through the hole on the group's baffle 13, open the hot plate 14 and can heat the inside sewage of the solid collecting box 15 until boiling, the group's baffle 13 can also cut off the air of the upper half and lower half of the purge bin 10, make the air current of the lower half of the purge bin 10 relatively stable, help the subsequent collection steam, open the suction pump 16, suck the heated steam into the condenser pipe 17, the condenser pipe 17 will lower the temperature of steam and liquefy, the liquefied water flows into the reservoir 18 through the water pipe to be stored, after the moisture in the solid collection box 15 is completely evaporated, the solid collection box 15 can be taken out, the dust solid remained in the collection box is recycled, after the backwashing filter screen 5 works for a long time and meshes are blocked, the air blower 2 can be firstly closed, the three-way regulating valve 3 is clockwise rotated until the water pipe of the backwashing water pump 20 is unblocked, the backwashing valve 6 and the flow valve 9 are closed, the blow-off valve 8 is opened, the backwashing water pump 20 is then opened, the backwashing water pump 20 pumps the water in the reservoir 18 into the backwashing filter box 4 through the water pipe, at the moment, because the backwashing valve 6 is in a closed state, the water flow flows out from the head of the backwashing filter screen 5, and backwashing is carried out on the backwashing filter screen 5 from outside to inside, the dust attached to the meshes in the backwashing filter screen 5 is flushed down and discharged into a blow-off pipeline through the blow-off port 7, the finally washed sewage flows into the solid collecting box 15 at the bottom of the purifying box 10, and then the sewage is heated and recycled, the liquid level maintaining pipe 19 is connected at the bottom of the reservoir 18, the other end of the liquid level maintaining pipe 19 is connected between the backwashing water pump 20 and the three-way regulating valve 3, the mounting height of the reservoir 18 is higher than that of the backwashing water pump 20, therefore, no matter the back flushing water pump 20 is in an opening or closing state, water is always kept in the water pipe in front of the back flushing water pump 20, the step of pumping water from the reservoir 18 during the stop-restart process is reduced, saving time, in addition, in the working process of the blower 2, the three-way regulating valve 3 is opened by a certain angle, so that the air in the pipeline can take out the water in the liquid level holding pipe 19 under the condition that the backwashing water pump 20 does not work, adsorb the dust in the air and assist the backwashing filter screen 5 in filtering the dust in the air;
example (b):
a. the blower 2 is turned on, and at the moment, the blower 2 can suck the air in the production site into the pipeline through the dust suction port 1;
b. air in a production field reaches a backflushing filter box 4 after passing through a three-way regulating valve 3, and is discharged into a purifying box 10 after being filtered by a backflushing filter screen 5;
c. the water sprayed by the spray head 11 adsorbs dust in the air and falls into the solid collection box 15 at the bottom of the purification box 10;
d. the heating plate 14 is opened, the heating plate 14 heats the bottom of the purification box 10, so that sewage formed by dust and water in the solid collection box 15 is boiled, the air suction pump 16 is opened, the air suction pump 16 sucks water vapor evaporated by boiling into the condensation pipe 17, the water vapor is cooled by the condensation pipe 17 and then turns into water, and the water vapor is stored in the reservoir 18, so that the effect of recycling the water source can be achieved;
e. after the backwashing filter screen 5 works for a long time to cause mesh blockage, the air blower 2 can be firstly closed, the three-way regulating valve 3 is clockwise rotated until the water pipe of the backwashing water pump 20 is unblocked, the backwashing valve 6 and the flow valve 9 are closed, the blow-down valve 8 is opened, then the backwashing water pump 20 is opened, the backwashing water pump 20 pumps water in the reservoir 18 into the backwashing filter box 4 through the water pipe, at the moment, because the backwashing valve 6 is in a closed state, water flows out of the head of the backwashing filter screen 5 and backflushs the backwashing filter screen 5, dust attached to meshes in the backwashing filter screen 5 is flushed down and discharged into a blow-down pipeline through the blow-down port 7, and finally flushed sewage flows into the solid collecting box 15 at the bottom of the purifying box 10;
it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a cement manufacture is with dust remover that has blowback device, includes dust absorption mouth (1), its characterized in that: one side of the dust collection port (1) is connected with a blower (2), the other side of the blower (2) is provided with a three-way regulating valve (3), one channel of the three-way regulating valve (3) is connected with a backflushing filter box (4), and the other channel of the three-way regulating valve (3) is connected with a backflushing water pump (20);
a backflushing filter screen (5) is arranged in the backflushing filter box (4), a drain outlet (7) is arranged at the tail end of the backflushing filter screen (5), and a backflushing valve (6) is arranged at the front end of the backflushing filter screen (5);
the right side of the backflushing filter tank (4) is connected with a circulation pipeline, the middle of the circulation pipeline is provided with a circulation valve (9), and the tail end of the circulation pipeline is connected with a purification tank (10);
the periphery of the inner wall of the purification box (10) is uniformly provided with spray heads (11), and the top of the purification box (10) is provided with an atomization filter screen (12);
a group partition plate (13) is arranged in the middle of the purification box (10), the periphery of the group partition plate (13) is hollow, a solid collection box (15) is arranged at the bottom of the purification box (10), and a heating plate (14) is arranged at the bottom of the purification box (10);
an air pipe on one side of the purification box (10) is connected with an air suction pump (16), the other end of the air suction pump (16) is connected with a condensation pipe (17), and a water pipe at one end of the condensation pipe (17) is connected with a reservoir (18);
the bottom of the reservoir (18) is connected with a backwash water pump (20) through a water pipe, and the tail end of the sewage draining outlet (7) is connected with a sewage draining valve (8);
the bottom of the reservoir (18) is connected with a liquid level maintaining pipe (19), and the liquid level maintaining pipe (19) is connected between a backwashing water pump (20) and the three-way regulating valve (3);
the method comprises the following steps:
a. the blower (2) is turned on, and at the moment, the blower (2) can suck the air in the production site into the pipeline through the dust suction port (1);
b. air in a production site reaches the backflushing filter box (4) through the three-way regulating valve (3), is filtered by the backflushing filter screen (5) and is discharged into the purifying box (10);
c. the water sprayed by the spray head (11) adsorbs dust in the air and falls into a solid collecting box (15) at the bottom of the purifying box (10);
d. the heating plate (14) is opened, the bottom of the purification box (10) is heated by the heating plate (14), so that sewage formed by dust and water in the solid collection box (15) is boiled, the air suction pump (16) is opened, vapor evaporated by boiling is sucked into the condensation pipe (17) by the air suction pump (16), and the vapor is cooled by the condensation pipe (17) and then turns into water which is stored in the reservoir (18), so that the effect of recycling the water source can be achieved;
after the backflushing filter screen (5) works for a long time to cause mesh blockage, firstly, the air blower (2) is closed, the three-way regulating valve (3) is rotated clockwise to ensure that a water pipe of the backflushing water pump (20) is unblocked, the backflushing valve (6) and the circulation valve (9) are closed, the blow-down valve (8) is opened, then the backflushing water pump (20) is opened, the backflushing water pump (20) can pump water in the reservoir (18) into the backflushing filter tank (4) through the water pipe, at the moment, because the backflushing valve (6) is in a closed state, water flows out of the head of the backflushing filter screen (5) and backflushing is carried out on the backflushing filter screen (5), dust attached to meshes in the backflushing filter screen (5) is flushed and discharged into a blow-down pipeline through the blow-down port (7), and finally flushed sewage flows into the solid collecting box (15) at the bottom of the purifying tank (10).
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| CN202010944401.8A CN112316571B (en) | 2020-09-10 | 2020-09-10 | Dust remover with blowback device for cement production |
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| CN202010944401.8A CN112316571B (en) | 2020-09-10 | 2020-09-10 | Dust remover with blowback device for cement production |
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| CN112316571B true CN112316571B (en) | 2022-03-15 |
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