Explosion-proof dust remover for dust explosion environment

Abstract

The invention relates to the field of separation, in particular to an anti-explosion dust remover for a dust explosion environment, which comprises a dust removal box, the dust removal box is communicated with an air inlet channel, and an anti-explosion dust removal assembly is also arranged in the dust removal box and is communicated with the air inlet channel; through the synergistic effect of the blocking baffle, the guide plate and other components, the flowing path of high-temperature airflow is effectively prolonged, the staying time of sparks and dust is prolonged, the spark extinguishing and dust separation efficiency is improved, meanwhile, through effective guiding of the airflow, disturbance of the flowing airflow to dust in the dust removal box is avoided, and the dust removal efficiency is improved. And the situation that dust cloud is formed by gathering rolled dust is reduced, dust explosion is prevented, and the dust explosion risk is reduced.

Description

Technical Field

[0001] The present invention relates to the field of separation, and particularly to an explosion-proof dust collector for a dust explosion environment. Background Art

[0002] In the existing fields of metallurgy, chemical industry, and pharmaceuticals, etc., a large amount of combustible dust is often produced during production activities. These dusts are likely to cause dust explosion accidents when encountering an ignition source. Although traditional dust removal equipment can remove the dust generated during the production process to a certain extent, when facing combustible high-temperature dust, it may cause an explosion because the mixture of dust and air reaches the explosion limit, resulting in serious property losses and personal injuries.

[0003] With the development of technology, technicians in related fields have also carried out a lot of optimizations on explosion-proof dust collector equipment for dust explosion environments. For more accurate comparison, for example, the explosion-proof dust collector disclosed in Chinese Patent with publication number CN105032059A includes a dust removal box, a dust storage box, a dust removal chamber, a clean air chamber, filter bags, and explosion-proof components, etc.; when in use, the upper part of the inner cavity of the dust storage box is divided into an air inlet chamber and an air outlet chamber by a first explosion-proof baffle, and the blocking surface of the first explosion-proof baffle faces the primary air inlet. When a spark comes in from the primary air inlet, it will naturally be blocked by the first explosion-proof baffle. The spark will hit the blocking surface and lose its power and automatically go out. In addition, the flow path of the spark from the air inlet chamber to the air outlet chamber is curved and not in a straight line, which also lengthens the movement path to a certain extent, helps the spark to cool, and improves the safety of the entire device.

[0004] However, there are still some deficiencies in the above explosion-proof dust collector during actual use: The above device blocks the high-temperature dust from the primary air inlet through the first explosion-proof plate. After the airflow impacts the first explosion-proof plate, its own flow path is changed. The dust in the airflow will sink into the dust storage box when it impacts the first explosion-proof plate. At the same time, after the spark impacts the first explosion-proof plate, it will also lose its power and then automatically go out and sink or suspend in the dust storage box. The first explosion-proof plate and the second explosion-proof plate of the above device are arranged in the dust storage box. After the airflow impacts the first explosion-proof plate, it will flow downward and then be led out through the ventilation pipe on the other side of the dust storage box. During this process, the airflow will always be in contact with the dust in the dust storage cavity, and at the same time, the flow of the airflow still has a certain flow rate. Therefore, when the above device is applied to the treatment of high-temperature flammable dust, it is extremely easy to form the disturbance of the airflow to the dust in the dust storage cavity, resulting in the aggregation of dust and the formation of a dust cloud, and then causing a dust explosion accident after the subsequent blowing of the high-temperature spark-containing airflow.

[0005] Therefore, under the above-stated viewpoints, there is still room for improvement in the existing explosion-proof dust removal equipment. Summary of the Invention

[0006] To solve the above problems, the present invention provides an explosion-proof dust collector for a dust explosion environment, which includes a dust removal box. An air inlet passage is connected to the dust removal box, and an explosion-proof dust removal component is also arranged in the dust removal box and is connected to the air inlet passage. The explosion-proof dust removal component includes: An installation panel, which is limited in the dust removal box and divides the dust removal box into a purification chamber and an exhaust chamber.

[0007] A guiding plate, which is limited in the purification chamber and divides the purification chamber into a dust removal cavity and an ash storage cavity. A number of through holes are formed on the guiding plate to communicate the dust removal cavity and the ash storage cavity.

[0008] A barrier baffle, which is limited in the dust removal cavity and is arranged at an interval with the installation panel to limit the flow path of high-temperature air flow.

[0009] Preferably, a number of connecting cylinders are jointly limited between the installation panel and the guiding plate. An air guiding channel is formed on the connecting cylinder to communicate the dust removal cavity, the ash storage cavity and the exhaust chamber with each other.

[0010] Preferably, a filter kit is sleeved outside the connecting cylinder to filter the gas introduced into the air guiding channel.

[0011] Preferably, the guiding plate includes a diversion plate which is inclined and limited between the dust removal box and the installation panel. A number of through holes are opened on the diversion plate. A drainage plate extends downward on one side of the diversion plate close to the air inlet passage. The drainage plate is arranged at an interval from the inner wall of the dust removal box. The connecting cylinder is limited between the drainage plate and the installation panel.

[0012] Preferably, a number of the barrier baffles are arranged at intervals, and adjacent two barrier baffles are distributed vertically and staggeredly and are respectively connected to the dust removal box and the diversion plate.

[0013] Preferably, a dust collection bin connected to the dust removal box is jointly limited at the bottoms of the drainage plate and the installation panel.

[0014] Preferably, the dust collection bin is communicated with both the dust removal cavity and the ash storage cavity.

[0015] Preferably, a horizontal panel is jointly limited between the installation panel and the dust removal box, and an exhaust pipe is jointly penetrated between the horizontal panel and the dust removal box.

[0016] Preferably, a number of backflush air pipes are arranged in the exhaust chamber corresponding to the connecting cylinder.

[0017] Preferably, a deflagration vent communicating with the dust removal cavity is opened on the dust removal box, and a deflagration sheet is limited on the deflagration vent.

[0018] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the coordinated action of components such as the barrier baffle and the guiding plate, the present invention effectively extends the flow path of the high-temperature airflow, increases the residence time of the sparks and dust, improves the efficiency of spark extinguishing and dust separation. At the same time, through the effective guidance of the airflow, it avoids the disturbance of the flowing airflow to the dust in the dust removal box, reduces the occurrence of the rolled-up dust aggregating to form a dust cloud, prevents the occurrence of dust explosion, and reduces the risk of dust explosion.

[0019] 2. Through the coordinated cooperation of components such as the barrier baffle and the guiding plate, the present invention guides and shunts the airflow blown into the dust removal box, and through the spaced arrangement of multiple barrier baffles, effectively increases the flow path of the high-temperature airflow, making it easier for the high-temperature airflow to disperse in the dust removal cavity and improving the cooling rate of the high-temperature airflow.

[0020] 3. Through the mutual cooperation between the guiding plate and the connecting spring, the guiding plate is in a constantly shaking state after being blown by the airflow, thereby promoting the separation of the dust remaining on the guiding plate from it, avoiding the situation where the remaining dust is re-rolled up by the flowing airflow and then aggregates to form a dust cloud. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 is a schematic structural diagram of the present invention.

[0023] Figure 2 is a schematic structural diagram of the explosion-proof dust removal assembly of the present invention.

[0024] Figure 3 is a schematic structural diagram of the connecting cylinder of the present invention.

[0025] Figure 4 is a schematic structural diagram of the filter kit of the present invention.

[0026] Figure 5 is a schematic structural diagram of the guiding plate of the present invention.

[0027] Figure 6 is a schematic structural diagram of the guiding through pipe of the present invention.

[0028] Figure 7 is a schematic structural diagram of the connecting spring of the present invention.

[0029] Figure 8 is the present invention Figure 7 magnified view of A in

[0030] In the figure, 1 is a dust removal box; 10 is an air inlet channel; 2 is an explosion-proof dust removal component; 20 is an installation panel; 21 is a purification chamber; 210 is a dust removal chamber; 211 is a dust storage chamber; 22 is an exhaust chamber; 23 is a guiding plate; 230 is a diversion plate; 231 is a drainage plate; 24 is a through hole; 25 is a barrier baffle; 26 is a connecting cylinder; 260 is an air guiding channel; 261 is a filtering kit; 27 is an ash collection bin; 28 is a horizontal panel; 280 is an exhaust pipe; 281 is a backwash air pipe; 29 is a rupture disc; 3 is a guiding through pipe; 30 is a connecting spring. Detailed implementation manners

[0031] The following will Figure 1 be combined with Figure 8 the accompanying drawings to describe the embodiments of the present invention in detail.

[0032] The embodiment of the present application discloses an explosion-proof dust collector for a dust explosion environment. The present application is mainly applied in the process of purifying flammable dust, and achieves the effect of purifying the air flow containing flammable dust in terms of technical effects; especially in the purification process, by guiding the air flow path, effectively avoiding dust explosion accidents caused by high-temperature dust-containing sparks therein; further, the present application also effectively reduces the flow rate of the air flow in the dust removal box by diverting and guiding the air flow, avoiding dust explosion caused by dust aggregation caused by high-speed air flow.

[0033] Embodiment 1: Referring to Figure 1 and Figure 2 as shown, an explosion-proof dust collector for a dust explosion environment includes a dust removal box 1 with a hollow interior. An air inlet channel 10 is connected to the upper side of the dust removal box 1, and an explosion-proof dust removal component 2 is also arranged in the dust removal box 1 and is connected to the air inlet channel 10. When in use, the external high-temperature dust-containing air flow is introduced into the dust removal box 1 and the explosion-proof dust removal component 2 through the air inlet channel 10. After being guided by the explosion-proof dust removal component 2, the sparks in the high-temperature air flow are extinguished, helping the sparks to cool down. Then, through the filtering and dust removal treatment of the explosion-proof dust removal component 2, the dust in the air flow is filtered and separated, and the purified air flow after filtration is guided to be discharged, realizing the explosion-proof dust removal treatment effect for high-temperature dust.

[0034] Referring to Figure 2 and Figure 3 as shown, that is, the explosion-proof dust removal component 2 for processing high-temperature air flow; specifically, the explosion-proof dust removal component 2 includes: An installation panel 20, which is limited in the dust removal box 1 and divides the dust removal box 1 into a purification chamber 21 and an exhaust chamber 22.

[0035] The guiding plate 23 is limited in the purification chamber 21 and divides the purification chamber 21 into a dust removal chamber 210 and an ash storage chamber 211. A plurality of through holes 24 are formed on the guiding plate 23 to communicate the dust removal chamber 210 and the ash storage chamber 211, and at the same time, the dust-containing air flow entering the ash storage chamber 211 from the dust removal chamber 210 is preliminarily filtered.

[0036] The barrier baffle 25 is limited in the dust removal chamber 210 and is arranged at an interval from the mounting panel 20 to limit the flow path of the high-temperature air flow.

[0037] During use, after the high-temperature air flow is introduced into the dust removal chamber 210 through the air inlet channel 10, it will first blow towards the barrier baffle 25 and the mounting panel 20. After the sparks in the high-temperature gas impact on the barrier baffle 25 or the mounting panel 20, the direction and speed of the air flow will change, resulting in the dispersion of the air flow, increasing the residence time of the air flow and the sparks in the dust removal chamber 210, reducing the concentration and temperature of the sparks in the high-temperature air flow, making it easier for them to go out. At the same time, the kinetic energy of the sparks transported forward with the air flow is weakened due to contact with the barrier baffle 25 and the mounting panel 20, so that the heat has more time to dissipate, further reducing the temperature of the air flow and the sparks and reducing the possibility of their continuous combustion.

[0038] After the dust in the high-temperature air flow impacts on the barrier baffle 25 or the mounting panel 20, a part of its own kinetic energy moving forward with the air flow will decay, and then under the influence of its own gravity, it has a tendency to move down to the guiding plate 23. Also, because a plurality of through holes 24 are formed on the guiding plate 23 to communicate the dust removal chamber 210 and the ash storage chamber 211, after the air flow first impacts on the barrier baffle 25, part of the air flow will enter the ash storage chamber 211 through a plurality of through holes 24 on the guiding plate 23, and the other part of the air flow will continue to penetrate into the dust removal chamber 210 until it contacts the mounting panel 20 and then enters the ash storage chamber 211. Of course, it is also possible that the high-temperature air flow directly enters the ash storage chamber 211 through a plurality of through holes 24. Therefore, at least one section of the connecting section between the air inlet channel 10 and the dust removal box 1 is horizontally arranged directly opposite to the barrier baffle 25, so that the high-temperature air flow is preferentially impacted on the barrier baffle 25 after being introduced into the dust removal box 1. Through the mutual cooperation between the barrier baffle 25, the mounting panel 20, the guiding plate 23 and the through holes 24, the path of the high-temperature air flow introduced into the dust removal chamber 210 is effectively guided and shunted, avoiding the secondary temperature rise of the air flow caused by the accumulation of the high-temperature air flow in the dust removal chamber 210. At the same time, the flow path of the high-temperature air flow and the sparks is greatly increased, the residence time of the air flow and the sparks in the dust removal chamber 210 is increased, making it easier for the sparks to go out and the heat to continuously dissipate, and avoiding dust explosion accidents caused by high-temperature sparks.

[0039] Further, referring to Figures 1 to 4As shown, in order to export the air flow therein, a number of connecting cylinders 26 are jointly limited between the installation panel 20 and the guiding plate 23. An air guiding channel 260 is formed on the connecting cylinder 26 to communicate the dust removal chamber 210, the ash storage chamber 211 and the exhaust chamber 22 with each other. Specifically, the air guiding channel 260 includes a cavity formed by the hollow interior of the connecting cylinder 26. An opening is provided at one end of the cavity close to the installation panel 20 to communicate with the exhaust chamber 22. A number of through holes are evenly formed in the circumferential direction on the connecting cylinder 26 so that the ash storage chamber 211, the cavity and the exhaust chamber 22 are interconnected.

[0040] Furthermore, referring to Figures 2 to 4 As shown, a filter kit 261 is sleeved outside the connecting cylinder 26 to filter the gas introduced into the air guiding channel 260. The filter kit 261 is preferably a conventional filter bag or filter cartridge for filtering and adsorbing dust. During use, when the dust-containing air flow enters the connecting cylinder 26 through the filter kit 261 and then is introduced into the exhaust chamber 22, it will be first filtered by the filter kit 261 correspondingly connected to the outside of the connecting cylinder 26, so that the dust particles and the air flow are separated, achieving the effect of purifying and removing dust from the gas.

[0041] Referring to Figures 2 to 5 As shown, the guiding plate 23 includes a diversion plate 230 that is inclined and limited between the dust removal box 1 and the installation panel 20. A number of through holes 24 are formed in the diversion plate 230. A diversion plate 231 extends downward on one side of the diversion plate 230 close to the air inlet channel 10. The diversion plate 231 is arranged at an interval from the inner wall of the dust removal box 1. The connecting cylinder 26 is limited between the diversion plate 231 and the installation panel 20. During use, after the dust-containing air flow impacts on the blocking baffle 25 or the installation panel 20, the flow velocity and direction of the dust and the air flow will change, so that some of the dust particles will fall onto the diversion plate 230 under the influence of their own gravity. Among them, the dust particles smaller than the aperture of the through holes 24 will directly fall into the ash storage chamber 211, and the larger dust particles will move downward along the inclined diversion plate 230 and fall between the diversion plate 231 and the dust removal box 1, achieving the effect of purifying and removing dust from the dust-containing air flow.

[0042] Referring to Figure 1 and Figure 2As shown, as an alternative embodiment, a plurality of barrier baffles 25 can be provided according to actual requirements. In this embodiment, at least two barrier baffles 25 are arranged at intervals, and adjacent two barrier baffles 25 are distributed vertically in a staggered manner and are respectively connected to the dust removal box 1 and the flow guide plate 230. During use, due to the vertical staggered distribution of adjacent two barrier baffles 25, after the high-temperature airflow impacts on the barrier baffle 25, the airflow speed forward will be hindered by the contacted barrier baffle 25, and at the same time, the flow path of the airflow will be changed. Through the cooperation of multiple barrier baffles 25, the overall flow path of the airflow between multiple barrier baffles 25 presents a serpentine structure shape. Without increasing the floor area of the equipment, the flow path of the high-temperature airflow is effectively increased, and the time for it to stay in the dust removal chamber 210 is extended, so that the high-temperature airflow can effectively dissipate in the dust removal chamber 210 and avoid aggregation affecting heat dissipation.

[0043] Further, referring to Figure 2 and Figure 3 As shown, in order to collect the separated dust particles for the staff to uniformly process, a dust collection bin 27 connected to the dust removal box 1 is jointly limited at the bottom of the diversion plate 231 and the mounting panel 20. The dust collection bin 27 is simultaneously communicated with the dust removal chamber 210 and the ash storage chamber 211. The bottom of the dust collection bin 27 passes through the dust removal box 1 and is connected to the outside, so as to discharge the collected dust particles and avoid the accumulation of dust in the dust removal box 1.

[0044] Referring to Figures 2 to 5 As shown, a horizontal panel 28 is jointly limited between the mounting panel 20 and the dust removal box 1. An exhaust pipe 280 is jointly penetrated between the horizontal panel 28 and the dust removal box 1. One end of the exhaust pipe 280 far from the horizontal panel 28 passes through the dust removal box 1 and is connected to the outside, so as to discharge the dust-removed and purified gas in the exhaust chamber 22 through the exhaust pipe 280.

[0045] Referring to Figures 5 to 7 As shown, a plurality of backflush air pipes 281 are correspondingly arranged in the exhaust chamber 22 for the connection cylinder 26, and a pulse control valve for controlling the opening and closing of a plurality of backflush air pipes 281 is arranged outside the dust removal box 1. It should be noted that the method of dust removal of the filter bag by controlling the backflush air pipe 281 through the pulse control valve is a conventional existing technology and will not be elaborated here. It mainly controls a plurality of backflush air pipes 281 to spray high-pressure airflow into the cavity in the connection cylinder 26 through the pulse control valve to generate a reverse airflow. The airflow blows towards the filter bag through a plurality of through holes on the connection cylinder 26, causing the filter bag or filter cartridge to instantly expand and vibrate, thereby effectively removing the dust attached to the outer surface of the filter bag or filter cartridge. By regularly removing the dust on the surface of the filter bag or filter cartridge, its filtration efficiency can be maintained, the filtration resistance can be prevented from increasing, and the long-term stable operation of the dust collector can be ensured.

[0046] Referring to Figure 1 and Figure 2As shown in the figure, a pressure relief opening communicating with the dust removal chamber 210 is provided on the dust removal box 1, and a pressure relief sheet 29 is limited on the pressure relief opening. It should be noted that the pressure relief sheet 29 is a conventional existing metal diaphragm, on which a tear opening is provided that can break the metal diaphragm when subjected to a certain pressure impact. During normal operation, the pressure relief sheet 29 seals the pressure relief opening, and at this time, the dust collector can work normally to remove dust. When the pressure in the dust removal chamber 210 increases to a predetermined value that the pressure relief sheet 29 can withstand, the pressure relief sheet 29 can quickly respond and break, timely releasing the internal pressure. The pressure in the dust removal chamber 210 is released from the pressure relief opening, preventing the pressure in the equipment from continuing to increase and causing an explosion, and effectively blocking the propagation of the explosion wave, thereby protecting the safety of surrounding equipment and personnel.

[0047] Embodiment 2: Referring to Figure 2 and Figure 6 As shown in the figure, on the basis of Embodiment 1, when guiding the flow path of the high-temperature gas flow through the cooperation of the flow guide plate 230, several blocking baffles 25 and the mounting panel 20, after the gas flow containing dust with sparks impacts any one of the blocking baffles 25, the dust with sparks will first impact on the blocking baffle 25 and be dispersed, and then cool down and extinguish to form dust that falls and suspends in the dust removal chamber 210. At this time, due to the several through holes 24 provided on the flow guide plate 230, the gas flow will be guided into the ash storage chamber 211 through the through holes 24 after impacting on the blocking baffle 25, and at the same time, part of the small particle dust suspended in the dust removal chamber 210 will be driven to enter the ash storage chamber 211. However, the large particle dust larger than the aperture of the through hole 24 is difficult to pass through the through hole 24 by itself, and will fall along the inclined flow guide plate 230 to the ash collection bin 27 or stay on the flow guide plate 230. Then, the large particle dust staying is likely to be disturbed by the gas flow in the dust removal chamber 210 and suspended again in the dust removal chamber 210, forming a dust cloud with the accumulation of dust and being ignited by the continuous input of the high-temperature gas flow containing sparks, thereby leading to the generation of a dust explosion.

[0048] Based on the above, when the gas flow in the dust removal chamber 210 disturbs the dust and makes it suspend again, as an optional implementation method, a guiding through pipe 3 with a bent structure is also connected to the dust removal box 1. The upper end of the guiding through pipe 3 is located above the air inlet passage 10, and its lower end extends downward at least beyond the air inlet passage 10 and the flow guide plate 230 and then reconnects with the dust removal chamber 210.

[0049] Further, referring to Figure 7 and Figure 8As shown in the figure, in order to improve the effect of removing dust particles remaining on the deflector 230, the deflector 230 is spaced from the mounting panel 20, and the lower end of the flow guiding plate 231 is also spaced from the dust collecting bin 27. A connecting spring 30 is provided between the deflector 230 and the mounting panel 20, and the flow guiding plate 231 and the dust collecting bin 27 are also connected by the connecting spring 30. In the initial state, due to the connecting spring 30 provided at the deflector 230 and the flow guiding plate 231, the deflector 230 and the flow guiding plate 231 as a whole are in a floating connection state, that is, the deflector 230 and the flow guiding plate 231 as a whole will deflect to a certain extent with the deformation of the connecting spring 30.

[0050] Since the airflow is blocked by multiple blocking baffles 25, the flow velocity of the airflow flowing in a serpentine shape in the dust removal chamber 210 will continuously decay. At the same time, a number of through holes 24 are provided on the deflector 230 for the airflow to pass through. Therefore, the airflow diverted to the deflector 230 will not continuously blow the deflector 230 to deflect to one side.

[0051] During use, after the airflow blown in through the air inlet channel 10 impacts on the blocking baffle 25, the flow path of the airflow will be changed by the blocking baffle 25, generating a split flow state of continuing forward and blowing downward to the deflector 230. After the airflow blows onto the deflector 230, the deflector 230 is forced to have a tendency to deflect in the direction of the airflow. At the same time, the deflector 230 and the flow guiding plate 231 are floatingly connected to the mounting panel 20 and the dust collecting bin 27 through the connecting spring 30. After the deflector 230 is forced to deflect, the connecting spring 30 is also forced to be stressed, and then the connecting spring 30 is forced to deform. After the connecting spring 30 is stressed and deformed, it drives the deflector 230 and the flow guiding plate 231 to deflect and reset, so as to drive the remaining dust on the deflector 230 to move downward and separate from the deflector 230.

[0052] It should be noted that since the airflow has two split flow states of forward and downward at the deflector 230, when the forward airflow acts on the deflector 230, the connecting spring 30 between the deflector 230 and the mounting panel 20 will be stressed and compressed, while the connecting spring 30 between the flow guiding plate 231 and the dust collecting bin 27 will be stretched and deflected in the direction close to the mounting panel 20, causing the deflector 230 and the flow guiding plate 231 as a whole to deflect a certain distance in the direction close to the dust collecting bin 27, and then reset under the reset push of the connected connecting spring 30.

[0053] When the downward airflow acts on the deflector 230, the deflector 230 and the drainage plate 231 as a whole tend to move downward. The connecting spring 30 between the drainage plate 231 and the ash collection bin 27 is compressed by the force, and the connecting spring 30 between the deflector 230 and the mounting panel 20 is stretched and deflected in the direction close to the ash collection bin 27, and then reset under the push of the reset of the connected connecting spring 30. Through the mutual cooperation of the connecting springs 30 between the deflector 230 and the mounting panel 20 and between the drainage plate 231 and the ash collection bin 27, when the airflow acts on the deflector 230, the deflector 230 and the drainage plate 231 as a whole will present a shaking state, so as to prompt the dust remaining on the deflector 230 to break away from it.

[0054] During operation: First step: The high-temperature dusty airflow enters the dust removal chamber 210 in the dust removal box 1 through the air inlet channel 10, and the airflow is guided and shunted by the guiding plate 23 and the blocking baffle 25, reducing the airflow velocity while guiding the sparks in the airflow to extinguish.

[0055] Second step: After the airflow is guided and shunted, it is introduced into the ash storage chamber 211 through the through hole 24 on the guiding plate 23, and then the dusty airflow is filtered and dust-removed through a number of connecting cylinders 26 and filter kits 261 in the ash storage chamber 211, and the purified airflow is introduced into the exhaust chamber 22 and then discharged.

[0056] Third step: Due to the reduction of the flow velocity of the shunted airflow, the dust and the dusty dust in it fall to the guiding plate 23 after impacting on the blocking baffle 25, and the dust is driven to fall into the ash collection bin 27 through the guidance and separation of the guiding plate 23 for subsequent processing by the staff.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0058] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An explosion-proof dust collector for use in a dust explosion environment, comprising a dust removal box (1), characterized in that: The dust removal box (1) is connected to an air inlet passage (10), and an explosion-proof dust removal component (2) is also arranged in the dust removal box (1) and is connected to the air inlet passage (10). The explosion-proof dust removal component (2) comprises: An installation panel (20) is positioned within the dust removal box (1) and separates the dust removal box (1) into a purification chamber (21) and an exhaust chamber (22); A guide plate (23) is limitedly located in the purification chamber (21) and divides the purification chamber (21) into a dust removal chamber (210) and an ash storage chamber (211); a plurality of through holes (24) are formed on the guide plate (23) to connect the dust removal chamber (210) and the ash storage chamber (211); The blocking baffle (25) is limitedly located in the dust removal chamber (210) and is spaced apart from the mounting panel (20) to limit the flow path of the high-temperature airflow.

2. The explosion-proof dust collector for use in dust explosion environments according to claim 1, characterized in that: A plurality of connecting tubes (26) are provided between the installation panel (20) and the guide plate (23), and an air guide channel (260) is formed on the connecting tube (26) so that the dust removal chamber (210), the dust storage chamber (211) and the exhaust bin (22) are connected to each other.

3. The explosion-proof dust collector for use in dust explosion environments according to claim 2, characterized in that: The connecting tube (26) is sleeved with a filter kit (261) on the outside to filter the gas introduced into the gas guide channel (260).

4. The explosion-proof dust collector for use in a dust explosion environment according to claim 1, characterized in that: The guide plate (23) comprises a guide plate (230) which is located between the dust removal box (1) and the mounting panel (20) in an inclined shape, a plurality of through holes (24) are provided on the guide plate (230), a guide plate (231) extends downwardly from a side of the guide plate (230) close to the air inlet passage (10), the guide plate (231) is arranged at a distance from an inner wall of the dust removal box (1), and the connecting tube (26) is located between the guide plate (231) and the mounting panel (20).

5. The explosion-proof dust collector for use in a dust explosion environment according to claim 1, characterized in that: A plurality of the blocking baffles (25) are arranged at intervals, and two adjacent blocking baffles (25) are staggeredly distributed up and down and are respectively connected to the dust removal box (1) and the guide plate (230).

6. The explosion-proof dust collector for use in dust explosion environments according to claim 4, characterized in that: The guide plate (231) and the bottom of the installation panel (20) are jointly limited by a dust collecting bin (27) connected to the dust removal box (1).

7. The explosion-proof dust collector for use in dust explosion environments according to claim 6, characterized in that: The ash collecting bin (27) is connected to both the dust removal chamber (210) and the ash storage chamber (211).

8. The explosion-proof dust collector for use in a dust explosion environment according to claim 1, characterized in that: A horizontal panel (28) is provided between the installation panel (20) and the dust removal box (1), and an exhaust pipe (280) is provided between the horizontal panel (28) and the dust removal box (1).

9. The explosion-proof dust collector for use in a dust explosion environment according to claim 1, characterized in that: A plurality of recoil air pipes (281) are provided in the exhaust chamber (22) corresponding to the connecting tube (26).

10. The explosion-proof dust collector for use in dust explosion environments according to claim 1, characterized in that: The dust removal box (1) is provided with an explosion relief opening which is in communication with the dust removal chamber (210), and an explosion relief plate (29) is provided at the upper limit of the explosion relief opening.

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