A vibration type auxiliary ash discharging device of a pulse cloth bag dust collector ash hopper

Abstract

The utility model provides a kind of vibration type auxiliary ash discharge device of pulse cloth bag dust collector ash bucket, belong to pulse cloth bag dust collector ash bucket technical field, this vibration type auxiliary ash discharge device of pulse cloth bag dust collector ash bucket includes vibration exciter, conical guide vane and elastic connecting frame, the vibration exciter is fixedly installed on the inner wall surface of ash bucket, the top of conical guide vane is connected with vibration exciter by the elastic connecting frame, the bottom of conical guide vane extends towards the ash discharge port direction of ash bucket, annular gap is formed between the outer surface of conical guide vane and ash bucket inner wall surface, the vibration exciter drives the periodic vibration of conical guide vane for loosening the ash deposition adhered on the inner wall surface of ash bucket;It can solve the problem that pulse cloth bag dust collector cannot effectively remove the ash deposition adhered on the inner wall surface of ash bucket in prior art, frequent manual cleaning is needed, which increases maintenance cost and downtime.

Description

Technical Field

[0001] This utility model belongs to the technical field of pulse bag dust collector hopper. Specifically, it relates to a vibration-type auxiliary ash discharge device for the hopper of a pulse bag dust collector. Background Technology

[0002] Pulse jet baghouse dust collectors are widely used gas-solid separation devices in industrial production, primarily for capturing dust particles generated during production processes. Their working principle involves dust-laden gas passing through filter bags, where dust is trapped on the outer surface of the bags. The purified gas exits from the inside of the filter bags. The captured dust is cleaned by pulse jet cleaning and falls into the dust hopper, then discharged through a dust removal device at the bottom of the hopper. In actual operation, the dust hopper serves as a temporary storage and discharge point for dust, and its inner wall often accumulates a large amount of dust, especially for highly viscous dust or dust containing a certain amount of moisture. This adhesion is more severe. Under gravity, the dust adhering to the inner wall of the dust hopper gradually compacts, forming a hardened dust layer. Traditional dust collectors... The design primarily relies on the gravity of the dust to allow it to fall naturally to the ash discharge port. However, this passive ash discharge method is almost ineffective for ash already adhering to the inner wall of the ash hopper. As the operating time increases, the ash layer on the inner wall of the ash hopper becomes thicker and thicker, which not only reduces the effective volume of the ash hopper but may also lead to excessive ash accumulation, affecting the normal operation of the filter bags. Currently, the existing technologies to address this problem mainly involve manual periodic cleaning or the installation of pneumatic vibrators. Manual cleaning requires machine shutdown, is labor-intensive, and has a short cleaning cycle. Although pneumatic vibrators can generate vibration, their vibration frequency and amplitude are difficult to control precisely, and they require an additional air supply system, increasing equipment costs and maintenance difficulty. Utility Model Content

[0003] In view of this, the present invention provides a vibration-type auxiliary ash discharge device for the ash hopper of a pulse bag dust collector, which can solve the problem that in the long-term operation of pulse bag dust collectors, a large amount of dust easily adheres to the inner wall of the ash hopper. This dust gradually hardens into a hard ash layer, which seriously affects the ash discharge efficiency of the ash hopper, causing the ash to accumulate too high inside the ash hopper, and even block the lower space of the filter bag, affecting the normal operation of the dust collector. The traditional ash discharge method that relies on gravity to fall naturally cannot effectively remove the dust adhering to the inner wall of the ash hopper, requiring frequent manual cleaning, which increases maintenance costs and downtime, and affects the continuity of production and the stable operation of the dust collection system.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a vibration-type auxiliary ash discharge device for the ash hopper of a pulse bag dust collector, including a vibration exciter, a conical guide plate, and an elastic connecting frame. The vibration exciter is fixedly installed on the inner wall of the ash hopper. The top end of the conical guide plate is connected to the vibration exciter through the elastic connecting frame. The bottom end of the conical guide plate extends towards the ash discharge port of the ash hopper. An annular gap is formed between the outer surface of the conical guide plate and the inner wall of the ash hopper. The vibration exciter drives the conical guide plate to generate periodic vibration to loosen the ash adhering to the inner wall of the ash hopper. The elastic connecting frame maintains the gap distance between the conical guide plate and the inner wall of the ash hopper during vibration.

[0006] The technical effects of the vibration-assisted ash removal device for the ash hopper of a pulse bag dust collector provided by this utility model are as follows: The vibration exciter drives the conical guide plate to generate periodic vibration, and the vibration energy is transmitted to the area near the inner wall of the ash hopper. This causes the accumulated ash adhering to the inner wall of the ash hopper to be loosened and detached due to continuous vibration impact. The annular gap formed between the conical guide plate and the inner wall of the ash hopper provides a falling channel for the loosened ash, preventing the ash from re-accumulating on the inner wall of the ash hopper. The elastic connecting frame maintains a stable gap distance between the conical guide plate and the inner wall of the ash hopper during vibration, preventing collision damage between the conical guide plate and the inner wall of the ash hopper. At the same time, the flexibility of the elastic connecting frame allows for effective transmission of vibration energy, improving ash removal efficiency and reducing the problem of ash adhesion on the inner wall of the ash hopper.

[0007] Based on the above technical solution, the vibration-type auxiliary ash discharge device for the ash hopper of the pulse bag dust collector of this utility model can be further improved as follows:

[0008] The cone angle of the conical guide plate is greater than the cone angle of the lower cone of the ash hopper.

[0009] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the cone angle of the conical guide plate is greater than that of the cone at the bottom of the ash hopper, which makes the annular gap formed between the conical guide plate and the inner wall of the ash hopper gradually expand along the axial direction. This expanded gap structure is conducive to the smooth fall of loose ash under the action of gravity, and avoids the ash from getting stuck in the gap during the fall. At the same time, the larger cone angle makes the conical guide plate have a better guiding effect, which can guide the ash in the central area of ​​the ash hopper to fall into the annular gap, improve the overall ash discharge smoothness, and reduce the residence time of ash in the ash hopper.

[0010] Furthermore, the elastic connecting frame is radially distributed between the vibration exciter and the top of the conical guide plate, and the elastic connecting frame is evenly distributed along the circumference of the vibration exciter.

[0011] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the elastic connecting frame is radially distributed and uniformly distributed along the circumference of the vibration exciter, so that the vibration energy generated by the vibration exciter is uniformly transmitted to the top of the conical guide plate through multiple radial directions, ensuring that the vibration amplitude of the conical guide plate is consistent in all directions during vibration, avoiding eccentric vibration or irregular swaying of the conical guide plate. The radial distribution structure also enhances the structural stability of the entire device, enabling the conical guide plate to maintain a stable geometric position during long-term vibration operation, preventing positional displacement caused by vibration fatigue, and improving the service life and ash discharge stability of the device.

[0012] Furthermore, the outer surface of the conical guide plate is provided with multiple axially extending ribs, which extend from the top end to the bottom end of the conical guide plate.

[0013] The beneficial effects of the above-mentioned improvement scheme are as follows: the multiple axially extending ribs on the outer surface of the conical guide plate increase the outer surface area of ​​the conical guide plate, allowing vibration energy to be more effectively transferred to the surrounding ash layer through the ribs. During vibration, the ribs exert additional shearing force on the ash, accelerating the loosening and shedding of the ash. The continuous structure of the ribs extending from the top to the bottom enhances the overall rigidity of the conical guide plate, preventing irregular deformation of the conical guide plate due to its own flexibility during vibration. At the same time, the presence of the ribs prevents the ash from forming a continuous adhesion layer on the outer surface of the conical guide plate, reducing the weakening effect of the ash on the vibration effect.

[0014] Furthermore, the cross-section of the rib is triangular, and the tip of the rib faces away from the outer surface of the conical guide plate.

[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the cross-section of the rib is triangular and the tip is pointing away from the outer surface of the conical guide plate. This sharp geometry makes the rib exert a stronger piercing and shearing effect on the ash layer during vibration. The tip of the triangle can more easily cut into the interior of the already hardened ash layer, destroy the internal structure of the ash layer, and accelerate the breaking and loosening of the ash. The rib with a triangular cross-section has less wind resistance than a circular or square cross-section. It experiences less airflow resistance during vibration, which reduces vibration energy loss and improves vibration transmission efficiency. At the same time, the triangular structure makes it less likely for ash to accumulate on the surface of the rib.

[0016] Furthermore, the vibration exciter is disc-shaped, and a through hole is provided at the geometric center of the vibration exciter for inserting a fixing bolt, which passes through the through hole and connects to the inner wall of the ash hopper.

[0017] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the disc-shaped structure of the vibration exciter gives it a symmetrical mass distribution, which generates uniform vibration output during operation and avoids vibration eccentricity caused by mass asymmetry. The through hole set at the geometric center is used to pass through the fixing bolt, so that the fixing bolt passes through the through hole and achieves a rigid connection with the inner wall of the ash hopper, ensuring that the vibration energy generated by the vibration exciter can be directly transmitted to the ash hopper structure. The fixing bolt is located at the geometric center of the vibration exciter, so that the eccentric moment borne by the fixing point is minimized, which improves the reliability and durability of the fixed connection. The disc-shaped structure also facilitates the uniform distribution and installation of the elastic connecting frame at its edge.

[0018] Furthermore, the elastic connecting frame is a corrugated plate structure, with one end of the elastic connecting frame fixed at the edge of the vibration exciter and the other end fixed at the top edge of the conical guide plate.

[0019] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the elastic connecting frame is a corrugated plate structure. The corrugated geometry gives the elastic connecting frame a large axial flexibility, which can absorb the high-frequency vibration impact generated by the vibration exciter, avoid stress concentration and fatigue fracture caused by rigid connection. The corrugated structure provides axial flexibility while maintaining radial stiffness, so that the conical guide plate can generate effective axial vibration displacement. One end of the elastic connecting frame is fixed at the edge of the vibration exciter, and the other end is fixed at the top edge of the conical guide plate. This edge fixing method makes the vibration energy uniformly transmitted radially, ensuring that the conical guide plate as a whole produces coordinated vibration movement.

[0020] Furthermore, the bottom edge of the conical guide plate is wavy, and the crests and troughs of the wavy shape are alternately distributed along the circumference of the conical guide plate.

[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the bottom edge of the conical guide plate is wavy, and the crests and troughs of the wave are alternately distributed circumferentially, giving the bottom edge an irregular geometric profile. During vibration, the wavy edge generates a complex disturbance to the surrounding ash, disrupting the stable accumulation state of the ash at the bottom of the ash hopper. The wavy structure increases the perimeter of the bottom edge, increasing the contact area between the ash and the bottom of the conical guide plate, thus improving the efficiency of vibration energy transfer to the ash layer. The alternating distribution of crests and troughs also causes the ash to divert when it falls through the bottom edge, preventing a large amount of ash from concentrating in a certain area and causing blockage.

[0022] Furthermore, the elastic connecting frame is made of stainless steel spring steel, and the conical guide plate is made of carbon steel plate.

[0023] The beneficial effects of adopting the above-mentioned improved scheme are as follows: The elastic connecting frame is made of stainless steel spring steel, which has excellent elasticity and fatigue resistance, and can withstand long-term periodic vibration loads without plastic deformation or fatigue fracture. Stainless steel has good corrosion resistance, which can resist the erosion of dust and gas containing corrosive components inside the dust collector, thus extending the service life of the elastic connecting frame. The conical guide plate is made of carbon steel plate, which has high strength and rigidity, and can withstand dynamic loads during vibration without deformation. The high density of carbon steel material gives the conical guide plate sufficient mass, enhances the inertial effect during vibration, and improves the impact effect on accumulated dust.

[0024] Furthermore, the width of the annular gap between the conical guide plate and the inner wall of the ash hopper is 15~25mm, and the height of the rib is 8~15mm.

[0025] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the width of the annular gap between the conical guide plate and the inner wall of the ash hopper is 15 to 25 mm. This gap width ensures that the loose ash can fall smoothly through the gap to the ash discharge port, while avoiding the ash from falling directly from the top of the bag filter into the gap and bypassing the guiding effect of the conical guide plate if the gap is too large. The height of the rib is 8 to 15 mm. This height range allows the rib to effectively penetrate the ash layer and produce a loosening effect, while avoiding the rib from being too high and having insufficient rigidity, which would cause deformation or breakage during vibration. The reasonable size matching enables the vibratory auxiliary ash discharge device to achieve the best ash discharge effect in actual operation.

[0026] Compared with existing technologies, the beneficial effects of the vibration-assisted ash discharge device for the ash hopper of a pulse bag dust collector provided by this utility model are as follows: This utility model, by setting a conical guide plate driven by a vibration exciter inside the ash hopper, utilizes the dynamic impact force generated by periodic vibration to continuously loosen and remove the ash adhering to the inner wall of the ash hopper. The annular gap formed between the conical guide plate and the inner wall of the ash hopper provides a dedicated falling channel for the loosened ash, preventing the ash from re-adhering or accumulating. The flexible connection method of the elastic connecting frame ensures the effective transmission of vibration energy and prevents damage to the device from rigid impact. The ribs set on the outer surface of the conical guide plate and the bottom end... The wave-shaped structure further enhances the crushing and guiding effect on accumulated ash. The disc-shaped structure and central fixing method of the vibration exciter ensure the uniformity and stability of vibration. The entire device has a simple structure and is easy to install. It does not require a complex control system and can achieve continuous auxiliary ash discharge function through mechanical vibration alone. This significantly improves the ash discharge efficiency of the ash hopper, reduces ash adhesion, lowers the frequency of manual cleaning and maintenance costs, extends the continuous operation time of the dust collector, and improves the overall stability and reliability of the dust collection system. At the same time, due to the use of elastic connection and reasonable structural design, the device has good fatigue resistance and service life during long-term operation. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a vibrating auxiliary ash discharge device for the ash hopper of a pulse bag filter.

[0029] Figure 2 A top view of a vibrating auxiliary ash discharge device for the ash hopper of a pulse bag filter;

[0030] Figure 3 This is a schematic diagram of the conical guide vane.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 10. Vibration exciter; 20. Conical guide plate; 30. Elastic connecting frame. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0034] like Figure 1-3 The diagram shows a structural schematic of a vibration-type auxiliary ash discharge device for a pulse bag dust collector hopper provided by this utility model. The device includes a vibration exciter 10, a conical guide plate 20, and an elastic connecting frame 30. The vibration exciter is fixedly installed on the inner wall of the hopper. The top of the conical guide plate is connected to the vibration exciter through the elastic connecting frame, and the bottom of the conical guide plate extends towards the ash discharge port of the hopper. An annular gap is formed between the outer surface of the conical guide plate and the inner wall of the hopper. The vibration exciter drives the conical guide plate to generate periodic vibrations to loosen the ash adhering to the inner wall of the hopper. The elastic connecting frame maintains the gap distance between the conical guide plate and the inner wall of the hopper during vibration.

[0035] In the above technical solution, the cone angle of the conical guide plate is greater than the cone angle of the lower cone of the ash hopper.

[0036] Furthermore, in the above technical solution, the elastic connecting frame is radially distributed between the vibration exciter and the top of the conical guide plate, and the elastic connecting frame is evenly distributed along the circumference of the vibration exciter.

[0037] Furthermore, in the above technical solution, the outer surface of the conical guide plate is provided with multiple axially extending ribs, which extend from the top end to the bottom end of the conical guide plate.

[0038] Furthermore, in the above technical solution, the cross-section of the rib is triangular, and the tip of the rib faces away from the outer surface of the conical guide plate.

[0039] Furthermore, in the above technical solution, the vibration exciter is disc-shaped, and a through hole is provided at the geometric center of the vibration exciter for inserting a fixing bolt. The fixing bolt passes through the through hole and connects to the inner wall of the ash hopper.

[0040] Furthermore, in the above technical solution, the elastic connecting frame is a corrugated plate structure, one end of the elastic connecting frame is fixed at the edge of the vibration exciter, and the other end of the elastic connecting frame is fixed at the top edge of the conical guide plate.

[0041] Furthermore, in the above technical solution, the bottom edge of the conical guide plate is wavy, and the peaks and troughs of the wave are alternately distributed along the circumference of the conical guide plate.

[0042] Furthermore, in the above technical solution, the elastic connecting frame is made of stainless steel spring steel, and the conical guide plate is made of carbon steel plate.

[0043] Furthermore, in the above technical solution, the width of the annular gap between the conical guide plate and the inner wall of the ash hopper is 15~25mm, and the height of the rib is 8~15mm.

[0044] The following is a specific embodiment 1 of this utility model: This embodiment provides a vibrating auxiliary ash discharge device for the ash hopper of a pulse bag dust collector used in a cement production line raw material mill dust collector. The dust treated by this dust collector is mainly limestone powder and clay powder. The dust has a certain stickiness and easily adheres to the inner wall of the ash hopper. The vibrating exciter is made of a circular carbon steel plate with a diameter of 260mm and a thickness of 10mm. A through hole with a diameter of 18mm is opened at the geometric center of the vibrating exciter for inserting an M16 fixing bolt. The outer circumference of the vibrating exciter is... Six mounting ears are uniformly welded, each measuring 30mm x 40mm. Each mounting ear has 8mm diameter bolt holes for connecting the elastic connecting frame. The elastic connecting frame is made of 1.5mm thick, 50mm wide stainless steel spring steel plate, cold-formed into a corrugated structure with a wavelength of 25mm and a wave height of 8mm. The six elastic connecting frames are radially distributed. One end of each elastic connecting frame is fixed to the mounting ear of the vibrating exciter with an M6 bolt, and the other end is fixed to the top of the conical guide plate with bolts. On the connecting plate, the conical guide vane is made of 3mm thick Q235 carbon steel plate, rolled and welded. The cone angle of the conical guide vane is 55°, and the cone angle of the lower cone of the ash hopper is 50°. The top diameter of the conical guide vane is 240mm, the bottom diameter is 180mm, and the height is 200mm. Eight raised ribs are evenly distributed axially on the outer surface of the conical guide vane. The raised ribs are made of 3mm thick steel strips welded to the outer surface of the conical guide vane. The cross-section of the raised rib is an isosceles triangle with a base width of 12mm and a height of 10mm. The raised ribs extend from the conical guide vane... The top extends to a point 20mm from the bottom edge. The bottom edge of the conical guide plate is plasma-cut into a wave shape, consisting of 8 peaks and 8 troughs. The peaks are 15mm higher than the troughs, and the peaks and troughs are evenly distributed circumferentially. The vibration exciter is installed on the inner wall of the ash hopper at a position 1200mm from the top of the ash hopper. The fixing bolts pass through the through hole in the center of the vibration exciter and are connected to the nuts welded to the inner wall of the ash hopper. The tightening torque is 80kN. An electromagnetic vibration motor is installed on the outer circumferential side of the vibration exciter. The rated power of the electromagnetic vibration motor is 0.The 37 kW vibration frequency is 30 Hz. After the conical guide plate is installed, the annular gap width between its outer surface and the inner wall of the ash hopper is 20 mm. This gap width remains basically consistent along the axial direction of the conical guide plate. During the operation of the dust collector, the electromagnetic vibration motor drives the vibration exciter to generate periodic vibration. The vibration is transmitted to the conical guide plate through the elastic connecting frame. The conical guide plate generates a reciprocating motion with an axial amplitude of about 5 mm. The vibration causes the limestone powder and clay powder adhering to the inner wall of the ash hopper to continuously loosen. Moving dust falls through the annular gap under gravity into a screw conveyor at the bottom of the ash hopper for discharge. The raised ribs on the outer surface of the conical guide plate shear and puncture the adhering dust layer during vibration, accelerating the loosening and shedding of the dust. The wavy structure at the bottom diverts dust as it passes through the bottom area, preventing concentrated dust accumulation. After 30 days of continuous operation, inspection revealed virtually no noticeable dust accumulation on the inner wall of the ash hopper, indicating a significant improvement in ash discharge efficiency and good operational stability of the dust collector.

[0045] The following is another specific embodiment 2 of this utility model: Embodiment 2 is an improvement on Embodiment 1 for a dust collector that handles high-humidity dust. This dust collector is used to handle coal dust with a moisture content of 8%~12%. Coal dust has extremely strong adhesion under high humidity conditions. In Embodiment 2, the material of the conical guide plate is changed to 304 stainless steel plate. Stainless steel has better corrosion resistance and can resist the corrosion caused by wet coal dust. The number of ribs is increased to 12, and the spacing between the ribs is reduced to about 63mm. The increased number of ribs makes the transmission of vibration energy more concentrated, resulting in a stronger destructive effect on highly viscous wet coal dust. The corrugation height of the elastic connecting frame is increased to The increased wave height of 12mm gives the elastic connecting frame greater axial deformation capacity, enabling it to adapt to larger amplitude vibrations. The axial amplitude of the conical guide plate during vibration is increased to 8mm, resulting in a stronger impact force on wet coal dust. The power of the electromagnetic vibration motor is increased to 0.55 kW, and the vibration frequency is reduced to 25Hz. The lower frequency combined with the larger amplitude makes the vibration more effective at destroying sticky dust. The annular gap width is increased to 25mm, which prevents wet coal dust from sticking to the gap during its fall. Practical application shows that the improved device has a good ash removal effect on high-humidity coal dust, and the ash accumulation and adhesion phenomenon on the inner wall of the ash hopper is effectively controlled.

[0046] The following is another specific embodiment 3 of this utility model: Embodiment 3 is an improvement on Embodiment 1, specifically for the ash hopper of a large dust collector. The ash hopper of this dust collector has a diameter of 3000mm and a height of 4500mm, and a processing air volume of 50,000 cubic meters per hour. To meet the ash discharge requirements of the large-sized ash hopper, the diameter of the vibration exciter in Embodiment 3 is increased to 400mm and the thickness is increased to 15mm. The enlarged vibration exciter can generate greater vibration energy. The number of elastic connecting frames is increased to 10, which makes the distribution of vibration energy more uniform. The size of the conical guide plate is correspondingly increased, with a top diameter of 380mm, a bottom diameter of 280mm, and a height of 350mm. The wall thickness of the conical guide plate is increased to 5mm to withstand greater loads. With a large vibration load, the height of the raised ribs is increased to 15mm and the width of the bottom edge of the cross-section is increased to 18mm. The increased size of the raised ribs provides sufficient strength and rigidity. Two electromagnetic vibration motors are installed on the vibration exciter, symmetrically mounted on both sides of the vibration exciter. Each motor has a power of 0.55 kW. The dual-motor drive provides greater vibration force. The annular gap width is maintained at 20mm. This gap width can still ensure good ash removal effect in large-size ash hoppers. The height difference between the wavy crest and trough at the bottom of the conical guide plate is increased to 20mm. The increased wavy structure has a stronger disturbance effect on large-volume dust. The improved device operates stably in large dust collectors, effectively solving the problem of ash accumulation and adhesion in large-size ash hoppers, and significantly improving ash removal efficiency.

[0047] Specifically, the principle of this utility model is as follows: The core principle of this utility model is to utilize the energy transmission effect of mechanical vibration to break the adhesion between dust particles and between dust and the inner wall of the ash hopper. The vibration exciter generates periodic vibration motion through a motor or other driving method. This vibration motion is transmitted to the conical guide plate through an elastic connecting frame. The corrugated structure of the elastic connecting frame has a specific elastic coefficient, which can convert the high-frequency small-amplitude vibration generated by the vibration exciter into low-frequency large-amplitude vibration of the conical guide plate, so that the conical guide plate generates effective reciprocating motion inside the ash hopper. The vibration of the conical guide plate generates shear force and impact force through its relative movement with the ash layer. These dynamic forces act on the ash layer adhering to the inner wall of the ash hopper, breaking the microscopic binding forces such as van der Waals forces and electrostatic attraction between the ash particles, thus... The ash layer develops microcracks and gradually loosens and falls off. The ribs on the outer surface of the conical guide plate exert concentrated stress on the ash layer during vibration. The triangular tips of the ribs can cut into the interior of the ash layer, producing a stronger destructive effect. The annular gap between the conical guide plate and the inner wall of the ash hopper provides space for the loosened ash to fall under gravity, preventing the loosened ash from re-accumulating or adhering. The cone angle of the conical guide plate is larger than that of the cone of the ash hopper, so that the gap gradually widens along the falling direction, which conforms to the flow law during the ash falling process. The wavy structure at the bottom generates a disturbance when the ash passes through, further promoting the dispersion and falling of the ash. The entire device, through continuous mechanical vibration, transforms the static state of ash adhesion into a dynamic state of loosening and falling, fundamentally solving the problem of ash adhesion on the inner wall of the ash hopper.

[0048] Before the pulse jet baghouse dust collector operates normally, first install the vibrating exciter at an appropriate height on the inner wall of the hopper using fixing bolts. The installation position is typically chosen at the junction of the upper and lower cones of the hopper, ensuring the conical guide plate covers the main ash accumulation area on the inner wall of the hopper. During installation, pass the fixing bolts through the through hole in the center of the vibrating exciter and tighten them to ensure tight contact between the vibrating exciter and the inner wall of the hopper. Check that the connection between the elastic connecting frame, the vibrating exciter, and the conical guide plate is secure, ensuring no looseness at any connection point. After starting the dust collector system, simultaneously start the drive device of the vibrating exciter. The vibrating exciter will begin to generate periodic vibrations, typically set within the range of 20 to 40 Hz. The vibration amplitude is adjusted according to the nature of the ash. For ash with high viscosity, the vibration amplitude can be increased appropriately. During the operation of the dust collector, the vibrating auxiliary ash discharge device works continuously. The vibration of the conical guide plate loosens the ash on the inner wall of the ash hopper and falls through the annular gap to the ash discharge port at the bottom of the ash hopper. The vibration status of the conical guide plate is checked regularly, and the ash accumulation on the inner wall of the ash hopper is observed. If the ash adhesion phenomenon is still found, the vibration parameters of the vibration exciter are adjusted or the elastic connecting frame is checked for failure due to fatigue. When the dust collector is shut down for maintenance, the ash on the outer surface of the conical guide plate is cleaned, and the ribs are checked for wear or damage. If necessary, the elastic connecting frame is replaced to ensure that the device can work normally when it is started next time.

Claims

1. A vibration-type auxiliary ash discharge device for a pulse jet bag filter hopper, comprising a vibration exciter, a conical guide plate, and an elastic connecting frame, wherein the vibration exciter is fixedly installed on the inner wall of the hopper, the top end of the conical guide plate is connected to the vibration exciter through the elastic connecting frame, and the bottom end of the conical guide plate extends toward the ash discharge port of the hopper, characterized in that, An annular gap is formed between the outer surface of the conical guide plate and the inner wall of the ash hopper. The vibration exciter drives the conical guide plate to generate periodic vibration to loosen the ash adhering to the inner wall of the ash hopper. The elastic connecting frame keeps the conical guide plate at a distance from the inner wall of the ash hopper during vibration.

2. The vibration-type auxiliary ash discharge device for the ash hopper of a pulse bag filter according to claim 1, characterized in that, The cone angle of the conical guide plate is greater than the cone angle of the lower cone of the ash hopper.

3. The vibrating auxiliary ash discharge device for the ash hopper of a pulse bag dust collector according to claim 2, characterized in that, The elastic connecting frame is radially distributed between the vibration exciter and the top of the conical guide plate, and the elastic connecting frame is evenly distributed along the circumference of the vibration exciter.

4. The vibrating auxiliary ash discharge device for the ash hopper of a pulse bag dust collector according to claim 3, characterized in that, The outer surface of the conical guide plate is provided with multiple axially extending ribs, which extend from the top end to the bottom end of the conical guide plate.

5. The vibrating auxiliary ash discharge device for the ash hopper of a pulse bag dust collector according to claim 4, characterized in that, The cross-section of the rib is triangular, and the tip of the rib faces away from the outer surface of the conical guide plate.

6. The vibrating auxiliary ash discharge device for the ash hopper of a pulse bag filter according to claim 5, characterized in that, The vibration exciter is disc-shaped, and a through hole is provided at the geometric center of the vibration exciter for inserting a fixing bolt. The fixing bolt passes through the through hole and connects to the inner wall of the ash hopper.

7. The vibrating auxiliary ash discharge device for the ash hopper of a pulse bag filter according to claim 6, characterized in that, The elastic connecting frame is a corrugated plate structure. One end of the elastic connecting frame is fixed to the edge of the vibration exciter, and the other end of the elastic connecting frame is fixed to the top edge of the conical guide plate.

8. The vibrating auxiliary ash discharge device for the ash hopper of a pulse bag filter according to claim 7, characterized in that, The bottom edge of the conical guide plate is wavy, and the peaks and troughs of the wave are alternately distributed along the circumference of the conical guide plate.

9. A vibrating auxiliary ash discharge device for a pulse bag filter hopper according to claim 8, characterized in that, The elastic connecting frame is made of stainless steel spring steel, and the conical guide plate is made of carbon steel plate.

10. A vibrating auxiliary ash discharge device for a pulse bag filter hopper according to claim 9, characterized in that, The width of the annular gap between the conical guide plate and the inner wall of the ash hopper is 15~25mm, and the height of the rib is 8~15mm.

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