Management system for dust collection and dust collection device thereof
阅读说明:本技术 一种收尘用管理系统及其收尘装置 (Management system for dust collection and dust collection device thereof ) 是由 朱保义 沈岑宽 陈华勇 吴国庆 王武钧 卢山龙 任永刚 胡磊 于 2019-09-16 设计创作,主要内容包括:本发明公开一种收尘用管理系统及其收尘装置,当收尘装置内气压达到预设值时,对流速检测模块检测得到的流速进行分析,并选取流速最慢的若干个流速值对应的滤袋作为清灰对象,驱动输气管道中的活塞移动至与对应的分气通孔接通,喷气工装启动对对应滤袋进行清灰,清灰时,气缸驱动筒体上移,筒体将滤袋罩入其中,这样能够防止总气体进口对滤袋表面的灰尘的沉积造成影响,整个过程将不同滤袋的清灰分开,清灰时也不需要停机,能够只对达到清灰要求的滤袋进行清灰,提升了清灰效率,提升了滤袋的使用寿命。(The invention discloses a management system for dust collection and a dust collection device thereof, when the air pressure in the dust collection device reaches a preset value, the flow velocity detected by a flow velocity detection module is analyzed, a plurality of filter bags with the slowest flow velocity values are selected as dust removal objects, a piston in a gas transmission pipeline is driven to move to be communicated with corresponding gas distribution through holes, a gas spraying tool is started to remove dust from the corresponding filter bags, a cylinder drives a cylinder to move upwards during dust removal, the cylinder covers the filter bags in the cylinder, so that the influence of dust deposition on the surfaces of the filter bags caused by a total gas inlet can be prevented, the dust removal of different filter bags is separated in the whole process, the machine does not need to be stopped during dust removal, only the filter bags meeting the dust removal requirements can be cleaned, the dust removal efficiency is improved, and the service lives of the filter bags are prolonged.)
1. A management system for dust collection is characterized by comprising an air heater, a temperature detection module, a pressure detection module, a flow rate detection module and a controller;
the air heater is used for heating the gas to be filtered entering the dust collecting device;
the temperature detection module is used for detecting the temperature of gas entering the dust collecting device and the temperature of gas leaving the dust collecting device;
the pressure detection module is used for detecting the pressure of an induced draft fan of the dust collection device;
the flow velocity detection module is used for detecting the gas flow velocity at the outlet of each filter bag in the dust collection device;
the working method of the management system for dust collection comprises the following steps:
when a pressure detection module detects that the pressure of an induced draft fan of the dust collection device reaches a preset value P, analyzing the flow rate detected by a flow rate detection module, selecting a filter bag corresponding to the slowest flow rate value as a dust removal object for dust removal, simultaneously recording the dust removal interval time of each filter bag and the flow rate change value before and after dust removal by a controller, starting an air heater to heat gas entering the dust collection device when the flow rate change value of the filter bag before and after dust removal is smaller than a preset value V, slowly reducing the heating temperature of the air heater when the flow rate change value of the filter bag before and after dust removal is larger than a preset value V1, simultaneously ensuring that the flow rate change value of the filter bag before and after dust removal is not smaller than the preset value V, and overhauling the dust collection device when the dust removal interval time of a single filter bag.
2. A dust collecting device is characterized by comprising a filter box (1) and an ash removal box (3), wherein a sleeve plate (2) is arranged at the joint of the filter box (1) and the ash removal box (3), a total gas inlet (11) is connected to the ash removal box (3) above the sleeve plate (2), a gas filtering device is arranged in the filter box (1), a filtering sleeve (4) is arranged in the ash removal box (3), and a gas spraying device (5) is arranged on the filter box (1);
the gas filtering device comprises an upper clamping plate (61) and a lower clamping plate (62), a sealing frame (63) and the lower clamping plate (62) are arranged between the lower clamping plate (62) and the upper clamping plate (61), a ventilation cavity is formed between the upper clamping plate (61) and the sealing frame (63), a filter bag fixing hole (67) is formed in the lower clamping plate (62), the lower clamping plate (62) is fixedly connected with one end of an opening of the filter bag (65) through the filter bag fixing hole (67), an air injection through hole (66) is formed in the upper clamping plate (61) corresponding to the filter bag fixing hole (67), a purified air outlet (64) is formed in the sealing frame (63), the purified air outlet (64) is communicated with the total air outlet (12), the upper clamping plate (61) is fixedly installed at the top of the filter box (1), a through hole is formed in the top of the filter box (1) corresponding to the air injection through hole (66), and an air outlet of the air injection device (5) extends into the filter bag (65) through the air injection through hole (66;
the air injection device (5) comprises a main pipe (51), the main pipe (51) is connected with a telescopic cylinder (52), a plurality of air distribution through holes (54) are axially formed in the pipe body of the main pipe (51), and an air injection nozzle (7) is fixedly installed on the main pipe (51) corresponding to each air distribution through hole (54);
the air inlet pipe (8) is arranged at two ends of the main pipe (51) in a sliding mode, the air inlet pipe (8) is driven to reciprocate in the main pipe (51) through the driving device, the air inlet pipe (8) comprises a gas transmission pipeline (81), an air injection tool is connected with one end of the gas transmission pipeline (81), the other end of the gas transmission pipeline (81) is connected with the piston (82), an air blowing nozzle (83) is arranged on the side wall of the piston (82), and the air blowing nozzle (83) is communicated with the gas transmission pipeline (81).
3. A dust collecting apparatus according to claim 2, characterized in that the filtering sleeve (4) comprises a cylinder (41), both ends of the cylinder (41) are open, a connecting rod (42) is fixed at the opening of one end of the cylinder (41), the connecting rod (42) is connected with a cylinder (43), and the cylinder (43) drives the cylinder (41) to reciprocate in the filtering box (1) and the dust removing box (3).
4. A dust collecting apparatus according to claim 2, wherein the sheathing board (2) comprises a board body (21), a plurality of sheathing holes (22) are formed in the board body (21) corresponding to the cylinder body (41), the board body (21) is sleeved on the cylinder body (41) through the sheathing holes (22), and a strip-shaped hole (23) is formed between adjacent sheathing holes (22).
5. A dust collecting apparatus according to claim 2, wherein the air jet nozzle (7) comprises a gasket (72) and a nozzle (73), an annular groove is formed on the nozzle (73), the gasket (72) is clamped with the nozzle (73) through the annular groove, the gasket (72) is made of rubber material, and the nozzle (73) is fixedly arranged on the main pipe (51) through a hoop (71).
6. A dust collecting apparatus according to claim 2, wherein the gas pipe (81) is slidably and sealingly connected to both end openings of the main pipe (51).
7. A dust collecting apparatus according to claim 2, wherein the main pipe (51) is connected with air release pipes (53) on the side walls near both ends, one end of each air release pipe (53) is connected with the main pipe (51), and the other end of each air release pipe (53) is connected with an air injection tool through a pipeline.
Technical Field
The invention belongs to the technical field of dust removal, and particularly relates to a management system for dust collection and a dust collection device thereof.
Background
In industrial production, in order to reduce the dust content in the production environment and ensure the safety of the production environment and the health of workers, or in order to ensure that the dust content in the discharged gas can meet the discharge requirement, the gas needs to be dedusted by dedusting equipment.
When the bag-type dust remover works, gas is filtered by the dust removing bag to remove dust in the gas, when the dust content on the surface of the bag reaches a certain degree, a large amount of gas is instantly sprayed by the gas spraying device, the dust removing bag is violently vibrated to remove the dust on the surface of the bag, so that the bag can be recycled for a long time, and a good dust removing effect is achieved, but in the actual working process of the bag-type dust remover, on one hand, if the humidity of mixed gas entering the bag-type dust remover is high, in the dust removing process, the mixed gas reaches a dew point due to cooling, water vapor condensation occurs, the condensed water vapor can cause the dust to be wet, adhered and gathered on the surface of the bag, so that pulse gas cannot fully remove the dust from the bag, meanwhile, the ventilation effect of the filter bag is also reduced due to the adhesion of the wet dust, and according to the difference of, the invention provides the following technical scheme for solving the problems that a powder layer is earlier adhered to the surface of a cloth bag close to an air inlet, so that the dust removal period of equipment is reduced, and meanwhile, the cloth bag dust remover also has the problem of uneven air injection, so that the dust removal effect of the dust removal cloth bags at all positions is also inconsistent.
Disclosure of Invention
The invention aims to provide a management system for dust collection and a dust collection device thereof.
The technical problems to be solved by the invention are as follows:
1. in the prior art, the mixed gas with high humidity is easy to condense after entering the bag-type dust remover, so that dust is adhered to the surface of a bag, the air permeability of the bag is quickly reduced, and meanwhile, the dust is not easy to separate from the bag, so that the dust removal effect is reduced;
2. among the prior art group, because the position according to the dust removal sack in the sack cleaner is different, the dust removal sack that is close to the air inlet can be earlier attach one deck dust, thereby lead to the dust removal cycle to shorten, and because the jet-propelled volume of air jet equipment to each sack is inhomogeneous, can't depend on the volume according to the dust of each sack and carry out the jet-propelled dust removal, thereby lead to being close to the air input of the dust removal sack of pulse inlet end lower, and the dust removal sack air input of keeping away from the pulse inlet end is big, lead to the dust removal effect inconsistent.
The purpose of the invention can be realized by the following technical scheme:
a management system for dust collection comprises an air heater, a temperature detection module, a pressure detection module, a flow speed detection module and a controller;
the air heater is used for heating the gas to be filtered entering the dust collecting device;
the temperature detection module is used for detecting the temperature of gas entering the dust collecting device and the temperature of gas leaving the dust collecting device;
the pressure detection module is used for detecting the pressure of an induced draft fan of the dust collection device;
the flow velocity detection module is used for detecting the gas flow velocity at the outlet of each filter bag in the dust collection device;
the working method of the management system for dust collection comprises the following steps;
when a pressure detection module detects that the pressure of an induced draft fan of the dust collection device reaches a preset value P, analyzing the flow rate detected by a flow rate detection module, selecting a filter bag corresponding to the slowest flow rate value as a dust removal object for dust removal, simultaneously recording the dust removal interval time of each filter bag and the flow rate change value before and after dust removal by a controller, starting an air heater to heat gas entering the dust collection device when the flow rate change value of the filter bag before and after dust removal is smaller than a preset value V, slowly reducing the heating temperature of the air heater when the flow rate change value of the filter bag before and after dust removal is larger than a preset value V1, simultaneously ensuring that the flow rate change value of the filter bag before and after dust removal is not smaller than the preset value V, and overhauling the dust collection device when the dust removal interval time of a single filter bag.
A dust collecting device comprises a filter box and an ash cleaning box, wherein a sleeve plate is arranged at the joint of the filter box and the ash cleaning box, a main gas inlet is connected to the upper position of the sleeve plate of the ash cleaning box, a gas filtering device is arranged in the filter box, a filtering sleeve is arranged in the ash cleaning box, and a gas spraying device is arranged on the filter box;
the gas filtering device comprises an upper clamping plate and a lower clamping plate, a sealing frame is arranged between the lower clamping plate and the upper clamping plate, a ventilation cavity is formed among the lower clamping plate, the upper clamping plate and the sealing frame, a filter bag fixing hole is formed in the lower clamping plate, the lower clamping plate is fixedly connected with one end of an opening of a filter bag through the filter bag fixing hole, a gas spraying through hole is formed in the upper clamping plate corresponding to the filter bag fixing hole, a purified gas outlet is formed in the sealing frame and communicated with a total gas outlet, the upper clamping plate is fixedly installed at the top of the filter box, a through hole is formed in the top of the filter box corresponding to the gas spraying through hole, and a gas outlet of the gas spraying;
the air injection device comprises a main pipe, the main pipe is connected with a telescopic cylinder, a plurality of air distribution through holes are axially formed in the pipe body of the main pipe, and an air injection nozzle is fixedly arranged on the main pipe corresponding to each air distribution through hole;
the two ends of the main pipe are provided with air inlet pipes in a sliding mode, the air inlet pipes are driven to reciprocate in the main pipe through a driving device, each air inlet pipe comprises a gas transmission pipeline, one end of each gas transmission pipeline is connected with an air injection tool, the other end of each gas transmission pipeline is connected with a piston, the side wall of each piston is provided with an air blowing nozzle, and the air blowing nozzles are communicated with the gas transmission pipelines.
As a further scheme of the invention, the filtering sleeve comprises a cylinder body, two ends of the cylinder body are opened, a connecting rod is fixed at the opening at one end of the cylinder body and is connected with an air cylinder, and the air cylinder drives the cylinder body to reciprocate in the filtering box and the ash removal box.
As a further scheme of the invention, the sleeve plate comprises a plate body, a plurality of sleeve holes are formed in the plate body corresponding to the barrel body, the plate body is sleeved on the barrel body through the sleeve holes, and strip-shaped holes are formed between every two adjacent sleeve holes.
As a further scheme of the invention, the air injection nozzle comprises a gasket and a nozzle, wherein an annular groove is formed in the nozzle, the gasket is clamped with the nozzle through the annular groove, the gasket is made of rubber materials, and the nozzle is fixedly arranged on the main pipe through a hoop.
As a further scheme of the invention, the gas transmission pipeline is connected with the openings at the two ends of the main pipe in a sliding and sealing manner.
As a further scheme of the invention, the side walls of the main pipe close to the two ends are respectively connected with an air release pipe, one end of the air release pipe is communicated with the main pipe, and the other end of the air release pipe is connected with an air injection tool through a pipeline.
The invention has the beneficial effects that:
1. in the working process of the management system for dust collection and the dust collection device, the filtering effect and the dust removal frequency before and after dust removal of the filter bag are analyzed, water vapor condensation and other fault conditions are found in time and are treated, and the rapid reduction of the dust removal efficiency of the filter bag caused by the water vapor condensation is avoided;
2. in the dust collecting device, when the air pressure in the dust collecting device reaches a preset value, the flow velocity detected by the flow velocity detection module is analyzed, a plurality of filter bags with the slowest flow velocity values are selected as dust removing objects, the pistons in the gas transmission pipelines are driven to move to be communicated with the corresponding gas distribution through holes, the gas spraying tools are started to remove dust of the corresponding filter bags, the cylinders drive the cylinders to move upwards during dust removal, the cylinders cover the filter bags in the cylinders, therefore, the influence of dust deposition on the surfaces of the filter bags caused by the total gas inlets can be prevented, the dust removal of different filter bags is separated in the whole process, the machine does not need to be stopped during dust removal, only the filter bags meeting the dust removal requirements can be removed, the dust removal efficiency is improved, and the service life of the filter bags is prolonged.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural view of a dust collecting apparatus according to the present invention;
FIG. 2 is a schematic view of the gas filtering device and the filtering sleeve;
FIG. 3 is a schematic view of the structure of the gas filtering device;
FIG. 4 is a schematic structural view of a deck;
FIG. 5 is a schematic view of a filter cartridge;
FIG. 6 is a schematic structural view of an air injection device;
FIG. 7 is a schematic structural view of a gas injection nozzle;
fig. 8 is a schematic structural view of an intake pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
A management system for dust collection comprises an air heater, a temperature detection module, a pressure detection module, a flow speed detection module and a controller;
the air heater is used for heating the gas to be filtered entering the dust collecting device, so that moisture in the gas is prevented from being condensed and adhered to the surface of the filter bag in the filtering process;
the temperature detection module is used for detecting the temperature of gas entering the dust collecting device and the temperature of gas leaving the dust collecting device;
the pressure detection module is used for detecting the pressure of an induced draft fan of the dust collection device;
the flow velocity detection module is used for detecting the gas flow velocity at the outlet of each filter bag in the dust collection device, and aims to compare the gas filtering velocity of each filter bag and judge the dust adhesion condition on the surface of each filter bag according to the gas filtering velocity of each filter bag.
The working method of the management system for dust collection is as follows;
when a pressure detection module detects that the pressure of an induced draft fan of the dust collection device reaches a preset value P, analyzing the flow rate detected by a flow rate detection module, selecting a filter bag corresponding to the flow rate with the slowest flow rate as a dust removal object, removing dust of the corresponding filter bag by changing the position of a
A dust collecting device is shown in figure 1 and comprises a
as shown in fig. 2 and 3, the gas filtering device includes an
as shown in fig. 5, the
as shown in fig. 4, the
as shown in fig. 6, the
the two ends of the
the
When the dust collecting device works, when the air pressure in the dust collecting device reaches a preset value, the flow rate detected by the flow rate detection module is analyzed, a plurality of filter bags with the slowest flow rates are selected as dust cleaning objects, the
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
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