Buffer pretreatment device for dry dust collector

Abstract

The utility model discloses a buffer pretreatment device for a dry dust collector, which comprises a pretreatment cabin and a baffle plate arranged in the pretreatment cabin, the baffle plate divides the pretreatment cabin into a buffer area and a dust filtering area, and the pretreatment cabin is provided with an air inlet for introducing dust-containing airflow, an air outlet for discharging airflow and a dust discharge port. The air inlet is formed in the buffer area, the air outlet and the dust discharging opening are formed in the dust filtering area, the air outlet is formed above the dust discharging opening, the buffer area is communicated with the lower end of the dust filtering area, the communication position is opposite to the dust discharging opening, and the air inlet and the air outlet are both opposite to the baffle.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal equipment field especially, relates to a kind of for dry dust collector buffer pretreatment device. BACKGROUND

[0002] Dry dust collector is as the key equipment of industrial dust removal field, is widely used in metallurgy, chemical industry, building material etc., is used to capture the dust generated in production process, to guarantee environmental clean and equipment safe operation, however, existing dry dust collector generally faces the core problem of short service life of filter core, for its reason, mixed large particle dust or spark in dust-laden airflow enters filter core area directly under the condition of not being effectively pretreated, leading to filter core blockage, wear and even burnout, this not only frequently increases filter core replacement and maintenance cost, but also reduces the operating efficiency of dust removal system due to shutdown maintenance, seriously affect industrial production continuity. SUMMARY

[0003] The utility model provides a kind of for dry dust collector buffer pretreatment device to the shortcoming that mixed large particle dust or spark in dust-laden airflow of prior art enters filter core area directly under the condition of not being effectively pretreated, leading to filter core blockage, wear and even burnout.

[0004] To solve the above technical problem, the utility model is solved by the following technical scheme: a kind of for dry dust collector buffer pretreatment device, including pretreatment cabin and the baffle being set in pretreatment cabin, the baffle is divided into buffer area and filter dust area by pretreatment cabin, the pretreatment cabin is opened with the air inlet for guiding dust-laden airflow, the air outlet for discharging airflow and dust outlet, the air inlet is opened in buffer area, the air outlet and dust outlet are both opened in filter dust area, the air outlet is set above dust outlet, the buffer area and filter dust area lower end are communicated and the communicating place is oppositely arranged with dust outlet, the air inlet and air outlet are oppositely arranged with baffle.

[0005] By adopting the technical scheme, the pre-treatment cabin and the baffle structure inside the pre-treatment cabin are arranged, the cabin is divided into a buffer zone and a dust filtering zone, and the positions and the communication modes of the air inlet, the air outlet and the dust outlet are reasonably arranged, so that when the dust-containing airflow enters the pre-treatment cabin, the inertial separation is first generated in the buffer zone due to the impact of the baffle, the large-particle dust directly impacts the surface of the baffle due to the large kinetic energy and then sinks downward, is discharged through the area connected with the dust outlet at the bottom, and the fine-particle dust climbs to the air outlet along with the airflow, part of the heavy dust is further separated due to the gravity effect in the process, and finally only the airflow carrying a small amount of fine particles enters the subsequent filter element for processing, the classification and separation mechanism significantly reduces the dust load of the filter element, reduces the risk of filter element blockage and wear, the flow rate of the buffer zone is controlled to avoid airflow turbulence to cause dust to fly again, the overall structure is compact, no external pre-treatment device is needed, the system complexity and installation cost are reduced, and the operation stability and maintenance convenience of the dust remover are improved.

[0006] The utility model further sets up: the baffle is Z -shaped, the baffle is Z -shaped and is arranged and forms the upper buffer zone and the lower buffer zone below the upper buffer zone, the upper buffer zone space is greater than the lower buffer zone space, the air inlet is opposite with the upper buffer zone.

[0007] By adopting the technical scheme, the baffle is designed as a Z-shaped structure, the buffer zone is further divided into an upper buffer zone and a lower buffer zone, the space of the upper buffer zone is greater than that of the lower buffer zone, and the relative position of the air inlet and the upper buffer zone is designed, so that the dust-containing airflow first diffuses and slows down in the upper buffer zone after entering, the airflow residence time is prolonged to improve the initial separation efficiency of large-particle dust, then the airflow accelerates in the lower buffer zone due to the space contraction, the collision probability of dust and the baffle is enhanced, the continuous bending of the Z-shaped baffle forms multiple collision surfaces, the airflow direction is changed multiple times, the separation effect of large-particle dust is further strengthened by using the inertial effect, the differentiated space distribution of the upper and lower buffer zones can adapt to the sedimentation characteristics of dust of different particle sizes, the adaptability of the pre-treatment device to different working conditions is improved, the overall design realizes efficient classification and separation in a limited space, optimizes airflow distribution and reduces energy consumption.

[0008] The utility model further sets up: the baffle includes bending section one, bending section two and bending section three, bending section one, bending section two and pre -treatment cabin part inner wall form upper buffer zone, bending section three and pre -treatment cabin part inner wall form lower buffer zone, bending section two and bending section three connect one end and be set to downwardly inclined.

[0009] By adopting the technical scheme, the baffle is composed of the bending section one, the bending section two and the bending section three, the bending section one and the bending section two combine the inner wall of the pretreatment cabin to form the upper buffer zone, the bending section three combines the cabin wall to form the lower buffer zone, and the connecting end of the bending section two and the bending section three is inclined downward, the structure makes the airflow diffuse and slow down in the upper buffer zone due to the blocking of the bending section one, the large particle dust slides downward after impacting the surface of the bending section two due to inertia, and the airflow flows along the inclined direction of the bending section three when entering the lower buffer zone, the secondary collision of the dust and the baffle is accelerated, the inclined design guides the separated dust to the dust discharge port, avoids the dust from accumulating on the surface of the baffle, and the synergistic effect of the bending sections forms a stepped separation path, the separation effect of the dust is strengthened, the inclined angle of the bending section three can also reduce the airflow resistance, maintains the stability of the system, and the overall structure considers the separation efficiency and the optimization of the airflow dynamics.

[0010] The utility model further provides for: The pretreatment cabin is provided with a reinforcing rod, and the two ends of the reinforcing rod are respectively connected to the inner wall of the pretreatment cabin and the bending section three of the baffle.

[0011] By adopting the technical scheme, the reinforcing rod is arranged in the pretreatment cabin, and the two ends of the reinforcing rod are respectively connected to the inner wall of the cabin and the bending section three of the baffle, the mechanical strength and the anti-vibration performance of the baffle structure are significantly enhanced, the deformation or displacement of the baffle caused by the impact of high-speed airflow or dust accumulation is prevented, the rigid support of the reinforcing rod can ensure the relative position stability of the bending sections of the Z-shaped baffle, the airflow channel and the separation efficiency of the design are maintained, the fault risk caused by structural looseness in long-term operation is reduced, the service life of the device is prolonged, in addition, the arrangement of the reinforcing rod does not affect the airflow flow path, the structural reliability is improved while the integrity of the pretreatment function is maintained.

[0012] The utility model further provides for: The air outlet is opposite to the bending section one or / and the bending section two of the baffle, which is away from the air inlet.

[0013] By adopting the technical scheme, the air outlet is arranged on the side of the baffle away from the air inlet, and is opposite to the bending section one or the bending section two of the baffle, so that the airflow after pretreatment needs to bypass the bending section of the baffle when leaving the buffer zone, the airflow path is further prolonged and the contact opportunity of small particles and the baffle is increased, the surfaces of the bending section one and the bending section two can capture the escaped residual large particle dust, avoiding the residual large particle dust from entering the air outlet, meanwhile, the position design of the air outlet can guide the airflow to rise smoothly, reduce the disturbance of turbulence to the separated dust, ensure the uniformity of the airflow at the inlet of the filter element area, improve the trapping efficiency of the filter element, in addition, the layout can fully utilize the baffle structure to guide the airflow, avoid adding additional flow guiding components, simplify the structure of the device and reduce the manufacturing cost.

[0014] The utility model further sets up: the pretreatment cabin is provided with the guide inclined plate, the guide inclined plate sets up in the buffer area and the dust filtering area both lower end intercommunication, the guide inclined plate is inclined and sets up and the lower end of guide inclined plate is connected with the dust discharging port intercommunication and sets up.

[0015] Through adopting above-mentioned technical scheme, the guide inclined plate is arranged at the intercommunication of the lower end of the buffer area and the dust filtering area, and is inclined to extend to the dust discharging port, so that the large particle dust settled from the buffer area slides into the dust discharging port along the surface of the inclined plate under the action of gravity, the inclination angle of the inclined plate can accelerate the flow of dust, prevent the dust from accumulating and blocking at the intercommunication, and the guiding effect of the inclined plate can guide the dust to the dust discharging port, avoid the dust from staying or being raised again at the bottom area, and ensure the smoothness of the dust discharging channel, in addition, the inclined plate can also serve as the physical separation of the buffer area and the dust filtering area, reduce the airflow interference between the two areas, maintain the stability of the flow field inside the pretreatment device, and further improve the dust separation efficiency and system operation reliability.

[0016] The utility model further sets up: the side wall of pretreatment cabin is equipped with the access hole, the access hole is provided with detachable cover plate.

[0017] Through adopting above-mentioned technical scheme, the access hole and detachable cover plate provided on the side wall of the pretreatment cabin provide a convenient channel for cleaning and maintaining the key components such as internal baffle and guide inclined plate, so that the maintenance time is significantly shortened and the labor cost is reduced without disassembling the whole device when cleaning the accumulated dust or replacing the worn parts regularly, the sealing design of the access hole can ensure the air tightness during the operation of the device, avoid the airflow leakage affecting the separation effect, and the detachability of the cover plate takes into account the operation convenience and structural strength, which prolongs the effective service life of the device, and supports the rapid adjustment or optimization of the internal structure under different working conditions, and improves the flexibility and adaptability of the equipment.

[0018] The utility model further sets up: the air outlet is provided with filter element, and the dust discharging port is connected with accumulated dust hopper.

[0019] Through adopting above-mentioned technical scheme, the filter element provided on the air outlet can perform secondary filtration on the pretreated airflow, capture the escaped fine particle dust, and ensure that the cleanliness of the final discharged airflow meets the environmental protection standard, the accumulated dust hopper connected with the dust discharging port collects the large particle dust separated, realizes the classified treatment and resource utilization of the dust, the combination of the filter element and the accumulated dust hopper forms a two-stage purification system, which not only reduces the load of the subsequent dust removal equipment, but also avoids the excessive wear of the single treatment unit caused by mixed dust, and the detachable design of the accumulated dust hopper facilitates regular cleaning, reduces the system downtime, and the overall scheme improves the dust removal efficiency while taking into account the operation economy and environmental protection compliance.

[0020] This utility model, by adopting the above technical solutions, has significant technical effects: the pretreatment device, through the modular design of the pretreatment chamber and the innovative structure of the internal Z-shaped baffle, constructs a highly efficient dust removal pretreatment system integrating graded separation, airflow guidance, and dust collection. After the dust-laden airflow enters the buffer zone from the air inlet, due to the continuous bending and spatial separation of the Z-shaped baffle, a velocity gradient and multi-stage collision surfaces are formed. Large dust particles collide with the baffle surface under inertia and slide into the dust collection hopper along the guide inclined plate, while fine particles settle a second time due to gravity as they rise with the airflow. Finally, they are purified a second time by the air outlet filter element, achieving graded dust removal. Separation and precise capture: The bending angle of the Z-shaped baffle and the design of the reinforcing rod ensure structural stability, avoiding deformation or vibration caused by high-speed airflow. The inspection port and removable dust collection hopper simplify the maintenance process. The guide ramp optimizes the dust discharge path and prevents dust accumulation. The overall solution does not require an external cyclone device. Through compact layout and synergistic effect, it significantly reduces the dust load and wear risk of the filter element, extends the filter element life by 2-3 times, and reduces maintenance costs by more than 30%. At the same time, it adapts to different dust characteristics and operating conditions, improves the overall energy efficiency and operational continuity of the dust removal system, and provides a highly reliable and low-cost innovative solution for the industrial dust removal field. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the combined structure of the dry dust collector and the buffer pretreatment device in Embodiment 1;

[0022] Figure 2 yes Figure 1 Side sectional view in the middle;

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the buffer pretreatment device in Example 2.

[0025] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Pretreatment chamber; 2. Baffle; 21. Bending section one; 22. Bending section two; 23. Bending section three; 3. Buffer zone; 31. Upper buffer zone; 32. Lower buffer zone; 4. Dust filtration zone; 5. Air inlet; 6. Air outlet; 7. Dust discharge port; 8. Reinforcing rod; 9. Guide ramp; 10. Inspection port; 11. Cover plate; 12. Filter element; 13. Dust hopper. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] Example 1:

[0028] A buffer pretreatment device for a dry dust collector, see [link / reference] Figures 1 to 3, including a pre-treatment cabin 1 and a baffle 2 arranged in the pre-treatment cabin 1, the baffle 2 separates the pre-treatment cabin into a buffer zone 3 and a dust filtering zone 4, the pre-treatment cabin 1 is provided with an air inlet 5 for introducing a dust-containing airflow, an air outlet 6 for discharging the airflow and a dust discharge port 7, the air inlet 5 is arranged in the buffer zone 3, the air outlet 6 and the dust discharge port 7 are both arranged in the dust filtering zone 4, the air outlet 6 is arranged above the dust discharge port 7, and the buffer zone 3 and the dust filtering zone 4 are communicated at the lower ends, and the dust discharge port 7 is arranged opposite to the communication between the buffer zone and the dust filtering zone 4.

[0029] Referring to Figure 3 , the baffle 2 is Z-shaped, and the baffle 2 comprises a bending section one 21, a bending section two 22 and a bending section three 23 in sequence by metal bending, the bending section one 21 and the bending section three 23 are arranged in parallel in this embodiment, and the bending section two 22 is arranged obliquely, and the end connected with the bending section three 23 of the bending section two 22 is arranged obliquely downward, the bending section one 21 and the bending section two 22 of the baffle 2 and part of the inner wall of the pre-treatment cabin 1 form an upper buffer zone 31, and the bending section three 23 and part of the inner wall of the pre-treatment cabin 1 form a lower buffer zone 32, the buffer zone 3 is formed into the upper buffer zone 31 and the lower buffer zone 32 through the bending shape of the baffle 2, the lower buffer zone 32 is located below the upper buffer zone 31, the space of the upper buffer zone 31 is greater than that of the lower buffer zone 32, the air inlet 5 is arranged opposite to the upper buffer zone 31, a guide inclined plate 9 is arranged on the bottom surface of the pre-treatment cabin 1, the guide inclined plate 9 is arranged at the communication between the buffer zone 3 and the dust filtering zone 4, the guide inclined plate 9 is arranged obliquely and the lower end of the guide inclined plate 9 is arranged reversely toward the dust filtering zone 4, the lower end of the guide inclined plate 9 is communicated with the dust discharge port 7, and the air outlet 6 is arranged opposite to the side of the baffle 2 away from the air inlet 5, and in this embodiment, the air outlet 6 is arranged opposite to the bending section two 22 of the baffle 2, but the air outlet 6 can also be arranged opposite to the bending section one 21 or / and the bending section two 22 of the baffle 2.

[0030] When the air inlet 5 introduces the dust-containing airflow, the airflow first hits the upper buffer zone 31, and the large-particle dust contained in the airflow falls into the dust discharge port 7 along the lower buffer zone 32 and the guide inclined plate 9 after hitting the baffle 2, and the airflow carrying the fine-particle dust climbs to the air outlet 6 above the dust discharge port 7 after passing through the lower buffer zone 32 and is discharged, and a part of the dust with a relatively heavy specific gravity can also be separated and directly fall into the dust discharge port 7 in the stage from the communication between the buffer zone 3 and the dust filtering zone 4 to the air outlet 6.

[0031] Referring to Figure 3The reinforcing rod 8 is arranged in the pretreatment chamber 1, and two ends of the reinforcing rod 8 are fixedly connected with an inner wall of the pretreatment chamber 1 and the bending section three 23 of the baffle 2 respectively, and the reinforcing rod 8 is mainly used for preventing the baffle 2 from being deformed after being impacted by large-particle dust for many times. The sidewall of the pretreatment chamber 1 is provided with an inspection opening 10, and the inspection opening 10 is provided with a detachable cover plate 11. The cover plate 11 is threadedly connected with the inspection opening 10, and the cover plate 11 is convenient for cleaning in the later period. The pretreatment device is mainly used for being integrated at the front end of the dry dust collector, and a cyclone pretreatment device does not need to be additionally arranged, so that the air outlet 6 is oppositely arranged with a filter core 12 of the dry dust collector, and the dust discharge port 7 is in communication with an ash hopper 13 of the dry dust collector.

[0032] Embodiment two:

[0033] The difference between the embodiment and the embodiment one is that, referring to Figure 4 The baffle 2 in the embodiment is V-shaped and only includes the bending section two 22 and the bending section three 23. The design has the advantages that the upper buffer area 31 with a large space and the lower buffer area 32 with a small space are still reserved, the same effects are achieved, and the device can be applied to more compact equipment.

Claims

1. A buffer pre-treatment device for a dry dust collector, characterized by, The pre-treatment cabin (1) and the baffle (2) arranged in the pre-treatment cabin (1) are included, the baffle (2) separates the pre-treatment cabin into the buffer area (3) and the dust filtering area (4), the pre-treatment cabin (1) is provided with the air inlet (5) for guiding the dust-containing airflow, the air outlet (6) for discharging the airflow and the dust discharge port (7), the air inlet (5) is arranged in the buffer area (3), the air outlet (6) and the dust discharge port (7) are both arranged in the dust filtering area (4), the air outlet (6) is arranged above the dust discharge port (7), the buffer area (3) and the dust filtering area (4) are communicated at the lower ends and the communication positions are arranged opposite to the dust discharge port (7), and the air inlet (5) and the air outlet (6) are arranged opposite to the baffle (2).

2. A device for buffering and pretreating the dust in a dry dust collector according to claim 1, characterized in that The baffle (2) is Z-shaped, the Z-shaped baffle (2) forms the upper buffer area (31) and the lower buffer area (32) below the upper buffer area (31), the space of the upper buffer area (31) is larger than that of the lower buffer area (32), and the air inlet (5) is arranged opposite to the upper buffer area (31).

3. A pre-treatment device for a buffer of a dry dust collector according to claim 2, characterized in that, The baffle (2) includes the bending section one (21), the bending section two (22) and the bending section three (23), the bending section one (21), the bending section two (22) and part of the inner wall of the pre-treatment cabin (1) form the upper buffer area (31), the bending section three (23) and part of the inner wall of the pre-treatment cabin (1) form the lower buffer area (32), and the bending section two (22) is arranged in a downward inclined manner at the connecting end with the bending section three (23).

4. A pre-treatment device for a dry dust collector according to claim 3, wherein The pre-treatment cabin (1) is provided with the reinforcing rod (8), and the two ends of the reinforcing rod (8) are connected with the inner wall of the pre-treatment cabin (1) and the bending section three (23) of the baffle (2) respectively.

5. A pre-treatment device for a dry dust collector according to claim 3, wherein The air outlet (6) is arranged opposite to the side of the baffle (2) away from the air inlet (5), and the air outlet (6) is arranged opposite to the bending section one (21) or / and the bending section two (22) of the baffle (2).

6. A pre-treatment device for a dry dust collector according to claim 1, characterized in that, The pre-treatment cabin (1) is provided with the guide inclined plate (9), the guide inclined plate (9) is arranged at the communication position between the buffer area (3) and the dust filtering area (4), the guide inclined plate (9) is arranged in an inclined manner, and the lower end of the guide inclined plate (9) is communicated with the dust discharge port (7).

7. A pre-treatment device for a dry dust collector according to claim 1, characterized in that, The sidewall of the pre-treatment cabin (1) is provided with the maintenance opening (10), and the maintenance opening (10) is provided with the detachable cover plate (11).

8. A pre-treatment device for a dry dust collector according to claim 1, characterized in that, The air outlet (6) is provided with the filter element (12), and the dust discharge port (7) is communicated with the dust hopper (13).

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