Pulse blowback filter cartridge dust removal device for smelting flue gas treatment

Abstract

The utility model relates to the technical field of filter cartridges, and discloses a pulse blowback filter cartridge dust removal device for smelting flue gas treatment, which comprises an outer cylinder, the inner wall of the outer cylinder is fixedly connected with a filter cartridge body, and a dust removal component is arranged in the filter cartridge body. According to the pulse blowback filter cartridge dust removal device for smelting flue gas treatment, the [-shaped ring can play a role in collecting and guiding, airflow enters the cartridge at a high speed in the axis direction of the filter cartridge instead of being scattered all around like through hole scattering, energy is more concentrated, the dust stripping efficiency is high, dust removal of the filter cartridge is more thorough, the main air bag expands, the [-shaped ring is jacked upwards, and the dust removal effect is better. The action range of back-blowing airflow is gradually covered from the lower part to the middle upper part of the filter cylinder, a dynamic segmented dust cleaning effect can be formed on the whole filter cylinder, dust cleaning dead angles are avoided, the inner wall of the outer cylinder is scraped by the outer scraping ring, deposited dust is forcibly stripped, and cleaning is more thorough.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter cartridge technical field, concretely is a kind of pulse backflush filter cartridge dust removal device for smelting flue gas treatment. BACKGROUND

[0002] The filter cartridge for smelting flue gas treatment is a key filter element specially applied in the dust removal and purification link in the non-ferrous metal, steel and alloy smelting process, which is usually composed of high-strength metal framework and filter material resistant to high temperature and corrosion, can effectively capture dust particles, metal oxides and harmful fine substances in smelting flue gas, and ensure that the emission meets the standard.

[0003] According to the pulse backflush filter cartridge dust removal device (publication number: CN212701037U) disclosed, the above-mentioned application includes a dust removal bucket and a top cover, the bottom inner wall of the dust removal bucket is fixedly connected with a rotating motor, the output shaft of the rotating motor is fixedly connected with an electric push rod at one end, the piston rod of the electric push rod is fixedly connected with a support plate at one end, and the top outer wall of the support plate is fixedly connected with L-shaped support plates at both ends.

[0004] However, the pulse airflow blown out by the through hole opened in the outer wall of the hollow shell in the above-mentioned dust removal device performs backflush on the filter cartridge, the blowing range is large and scattered, which leads to better dust removal effect on the part of the filter cartridge close to the through hole, and incomplete dust removal in the area far from the through hole, and long-term operation causes resistance difference in different parts of the filter cartridge, reduces the overall filtering efficiency; In view of this, we propose a pulse backflush filter cartridge dust removal device for smelting flue gas treatment. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pulse backflush filter cartridge dust removal device for smelting flue gas treatment to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A pulse-jet filter cartridge dust collector for treating smelting flue gas includes an outer cylinder. A filter cartridge body is fixedly connected to the inner wall of the outer cylinder. A dust collection assembly is installed inside the filter cartridge body. The dust collection assembly includes a pulse-jet outlet cylinder, an outlet hole, a first air guide ring, a flexible hose, a U-shaped ring, a second air guide ring, and a main air bag. Two sets of outlet holes are provided on the outer wall of the pulse-jet outlet cylinder. The first air guide ring is fixedly connected to the outer wall of the pulse-jet outlet cylinder, located outside the upper outlet hole. The outer wall of the first air guide ring... A flexible hose is fixedly connected, with its end face fixedly connected to a C-shaped ring. The C-shaped ring is movably connected to the inner wall of the filter cartridge body. A vertical rod is fixedly connected to the inner top surface of the filter cartridge body, and the vertical rod is slidably connected to the C-shaped ring. A second air guide ring is fixedly connected to the outer wall of the pulse air outlet, located outside the lower air outlet. A main air inlet pipe is fixedly connected to the outer wall of the second air guide ring, with its end face fixedly connected to the main air bag. A fixing frame is fixedly connected to the outer wall of the main air inlet pipe, located at the bottom of the main air bag and fixedly connected to the first vertical rod.

[0007] Preferably, it further includes a second vertical rod, an inner scraper ring, a secondary air intake pipe, a secondary air bladder, a connecting frame, and an outer scraper ring. The inner scraper ring is movably connected to the outer wall of the filter cartridge body, and the outer scraper ring is movably connected to the inner wall of the outer cylinder. The inner scraper ring and the outer scraper ring are connected as a whole by the connecting frame. A secondary air bladder is connected below the connecting frame, and a secondary air intake pipe is connected to the secondary air bladder. The secondary air intake pipe is fixedly connected to the side wall of the main air intake pipe. A second vertical rod is fixedly connected to the inner top surface of the outer cylinder, and the second vertical rod is slidably connected to the connecting frame.

[0008] Preferably, there are 2-4 hoses.

[0009] Preferably, the bottom of the outer cylinder is provided with a through groove, and the bottom of the outer cylinder is fixedly connected to the annular plate by bolts, with the annular plate covering the through groove.

[0010] Preferably, the pulse air outlet is fixedly connected to the outer wall of the filter cartridge body, and the pulse air outlet extends into the interior of the filter cartridge body.

[0011] Preferably, the auxiliary airbag is hollow, and the auxiliary airbag is sleeved with the second vertical rod, with the bottom of the auxiliary airbag fixedly connected to the second vertical rod.

[0012] Compared with the prior art, this utility model provides a pulse backflushing filter cartridge dust collector for smelting flue gas treatment, which has the following beneficial effects:

[0013] 1. The pulse back-blowing filter cartridge dust removal device for smelting flue gas treatment, through the setting of the dust removal assembly, the Z-shaped ring can play the role of convergence and guidance, so that the airflow enters the cylinder along the axial direction of the filter cartridge at high speed, instead of scattering in all directions like a through hole, so that the energy is more concentrated, the dust stripping efficiency is high, the filter cartridge cleaning is more thorough, the main air bag expands, the Z-shaped ring is lifted upward, so that the effective range of the back-blowing airflow gradually covers from the lower part to the middle and upper part of the filter cartridge, the cleaning range is larger, and a dynamic segmented dust removal effect can be formed on the entire filter cartridge, avoiding dead angles during dust removal, and the outer scraping ring scrapes the inner wall of the outer cylinder, so that the deposited dust is forced to be stripped, and the cleaning is more thorough, so that the air duct between the outer cylinder and the filter cartridge body is kept unobstructed.

[0014] 2. The pulse back-blowing filter cartridge dust removal device for smelting flue gas treatment, through the setting of the inner scraping ring, the outer wall of the filter cartridge body is scraped, the blind area of the back-blowing airflow is made up, and the outer wall is kept clean, so that the airflow flows more smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the Z-shaped ring structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the Z-shaped ring structure of the utility model; Figure 3 It is a schematic diagram of the Z-shaped ring structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the outer scraping ring structure of the utility model.

[0020] In the drawing: 1, outer cylinder; 2, filter cartridge body; 3, annular plate; 4, dust removal assembly; 401, pulse air outlet cylinder; 402, air outlet hole; 403, air guide ring one; 404, hose; 405, Z-shaped ring; 406, air guide ring two; 407, main air inlet pipe; 408, main air bag; 409, auxiliary air inlet pipe; 410, auxiliary air bag; 411, connecting frame; 412, outer scraping ring; 5, vertical rod one; 6, fixed frame; 7, vertical rod two; 8, inner scraping ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As Figures 1-5 shown, the utility model provides a technical scheme: a kind of pulse backflush filter cartridge dust removal device for smelting flue gas treatment, including outer tube 1, the inner wall of outer tube 1 is fixedly connected with filter cartridge body 2, the inside of filter cartridge body 2 is provided with dust removal assembly 4, dust removal assembly 4 includes pulse air outlet cylinder 401, air outlet hole 402, gas guide ring one 403, hose 404, U-shaped ring 405, gas guide ring two 406, main air inlet pipe 407, main air bag 408, auxiliary air inlet pipe 409, auxiliary air bag 410, connecting frame 411, outer scraping ring 412.

[0023] In an embodiment of the utility model, pulse air outlet cylinder 401 is fixedly connected in the outer wall of filter cartridge body 2, the outer wall of pulse air outlet cylinder 401 is equipped with air outlet hole 402, pulse air outlet cylinder 401 extends to the inside of filter cartridge body 2, and pulse air outlet cylinder 401 blows into pulse airflow to filter cartridge body 2.

[0024] Gas guide ring one 403 is fixedly connected in the outer wall of pulse air outlet cylinder 401, and the outer wall of gas guide ring one 403 is fixedly connected with 2-4 hoses 404, and U-shaped ring 405 is correspondingly holed, and the end surface of hose 404 is fixedly connected to U-shaped ring 405, gas guide ring one 403 is located in the outside of upper air outlet hole 402, U-shaped ring 405 is movably connected with the inner wall of filter cartridge body 2, with the spacing of 1-3mm, the inside top surface of filter cartridge body 2 is fixedly connected with vertical rod one 5, and vertical rod one 5 is slidably connected with the fastener inside U-shaped ring 405.

[0025] Gas guide ring two 406 is fixedly connected in the outer wall of pulse air outlet cylinder 401, and located in the outside of lower air outlet hole 402, and the side wall of gas guide ring two 406 is fixedly connected with main air inlet pipe 407, and the end surface of main air inlet pipe 407 is fixedly connected with main air bag 408, and the outer wall of main air inlet pipe 407 is fixedly connected with fixed frame 6, and fixed frame 6 is fixedly connected with vertical rod one 5, and fixed frame 6 supports the bottom of main air bag 408.

[0026] Further, the side wall of the main air inlet pipe 407 is connected with the auxiliary air inlet pipe 409, the end surface of the auxiliary air inlet pipe 409 is fixedly connected with the auxiliary air bag 410, the top of the auxiliary air inlet pipe 409 is provided with a connecting frame 411, the connecting frame 411 is fixedly connected with the inner wall of the outer scraping ring 412, the outer scraping ring 412 is movably connected with the inner wall of the outer cylinder 1, the inner top surface of the outer cylinder 1 is fixedly connected with a vertical rod two 7, the vertical rod two 7 is slidably connected with the connecting frame 411, the auxiliary air bag 410 is a hollow corrugated air bag, the auxiliary air bag 410 is sleeved with the vertical rod two 7, the bottom of the auxiliary air bag 410 is fixedly connected with a limiting block between the vertical rod two, the limiting block supports the bottom of the auxiliary air bag 410, so that the auxiliary air bag 410 can only expand upwards, thereby pushing the connecting frame 411 to move upwards. The main air bag 408 and the auxiliary air bag 410 adopt rubber air bags with corrugated side edges, which are first directionally inflated in the corrugated direction when the air bags are inflated, thereby pushing the U-shaped ring 405 and the outer scraping ring 412 to move upwards.

[0027] The bottom of the outer cylinder 1 is provided with a through groove, the bottom of the outer cylinder 1 is fixedly connected with the annular plate 3 through bolts, the annular plate 3 blocks the through groove, by moving the annular plate 3 downward, the through groove is unfolded, and the impurities deposited on the inner bottom surface of the outer cylinder 1 can be cleaned.

[0028] Air is blown into the filter cartridge body 2 through the pulse air outlet cylinder 401, the intermittently blown air enters the air guide ring one 403, the hose 404 and the U-shaped ring 405 in sequence through the air outlet hole 402, the air is blown back to the filter cartridge body 2 through the guidance of the U-shaped ring 405, the U-shaped ring 405 can play the roles of convergence and guidance, so that the airflow enters the cylinder along the axial direction of the filter cartridge at a high speed, instead of being scattered like a through hole, so that the energy is more concentrated, the dust stripping efficiency is high, and the filter cartridge cleaning is more thorough.

[0029] Part of the airflow enters the main air bag 408 through the air outlet hole 402, the air guide ring two 406 and the main air inlet pipe 407, the main air bag 408 expands, the U-shaped ring 405 is pushed upwards, the blowing range of the back blowing airflow gradually covers from the lower part to the middle and upper part of the filter cartridge, the cleaning range is larger, a dynamic segmented dust cleaning effect can be formed on the entire filter cartridge, and a dust cleaning dead angle is avoided. When there is no airflow, the U-shaped ring 405 extrudes the main air bag 408 under the action of gravity, so that the main air bag 408 is lowered and reset.

[0030] Another part of the airflow enters the auxiliary air bag 410 through the auxiliary air inlet pipe 409, the auxiliary air bag 410 expands and pushes the outer scraping ring 412 upwards, so that the outer scraping ring 412 scrapes the inner wall of the outer cylinder 1, the dust accumulated on the inner wall of the outer cylinder 1 is scraped off, the adhesion of the dust layer is destroyed, the deposited dust is forced to be stripped, the cleaning is more thorough, the air duct between the outer cylinder 1 and the filter cartridge body 2 is kept unobstructed, the inner wall of the outer cylinder 1 is prevented from being long-term dusty, and the dust that is difficult to be cleaned by back blowing is solved.

[0031] In addition, the end surface of the connecting frame 411 is fixedly connected with the inner scraping ring 8, the inner scraping ring 8 is movably connected with the outer wall of the filter cartridge body 2, the inner scraping ring 8 is lifted along with the lifting of the outer scraping ring 412, and the outer wall of the filter cartridge body 2 is scraped, the blind area of the back blowing airflow is compensated, the hard shell formed by long-time dust accumulation on the outer wall is avoided, the outer wall of the filter cartridge body 2 is kept clean, the airflow circulation is smoother, the outer scraping ring 412 is responsible for scraping the inner wall of the outer cylinder 1, the inner scraping ring 8 is responsible for scraping the outer wall of the filter cartridge, dust is avoided from being left in the interlayer area, and the dust cleaning is ensured to be more thorough.

[0032] In the utility model, when in use, the pulse air outlet cylinder 401 blows air into the filter cartridge body 2, the intermittent air enters the air guide ring one 403, the hose 404 and the Z-shaped ring 405 in sequence through the air outlet hole 402, the air blows the filter cartridge body 2 through the guidance of the Z-shaped ring 405, the Z-shaped ring 405 can play the role of convergence and guidance, makes the airflow high-speed enter the cylinder along the filter cartridge axial direction, instead of scattering like a through hole, makes the energy more concentrated, the dust stripping efficiency is high, the main air bag 408 expands, the Z-shaped ring 405 is lifted upwards, the action range of the back blowing airflow gradually covers from the lower part of the filter cartridge to the middle and upper part, the cleaning range is larger, can form the dynamic segmented dust cleaning effect on the whole filter cartridge, avoids the dust cleaning dead angle, the airflow enters the secondary air bag 410 through the secondary air inlet pipe 409, the secondary air bag 410 expands and lifts the outer scraping ring 412 upwards, the outer scraping ring 412 scrapes the inner wall of the outer cylinder 1, scrapes the dust accumulated on the inner wall of the outer cylinder 1, destroys the adhesion of the dust layer, forcibly strips the deposited dust, and the cleaning is more thorough.

[0033] The above embodiment generally describes the utility model in detail, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A pulse back-flushing filter cartridge dust removal device for smelting flue gas treatment, comprising an outer cylinder (1), the inner wall of the outer cylinder (1) is fixedly connected with a filter cartridge body (2), characterized in that: The inside of the filter cartridge body (2) is provided with a dust removal assembly (4), the dust removal assembly (4) comprises a pulse air outlet cylinder (401), an air outlet hole (402), a gas guide ring one (403), a hose (404), a horseshoe ring (405), a gas guide ring two (406), a main air bag (408), the outer wall of the pulse air outlet cylinder (401) is provided with two groups of air outlet holes (402), the gas guide ring one (403) is fixedly connected to the outer wall of the pulse air outlet cylinder (401), located outside the upper air outlet hole (402), the outer wall of the gas guide ring one (403) is fixedly connected with the hose (404), the end surface of the hose (404) is fixedly connected to the horseshoe ring (405), the horseshoe ring (405) is movably connected with the inner wall of the filter cartridge body (2), the vertical rod one (5) is fixedly connected to the inside top surface of the filter cartridge body (2), the vertical rod one (5) is movably connected with the horseshoe ring (405), the gas guide ring two (406) is fixedly connected to the outer wall of the pulse air outlet cylinder (401), located outside the lower air outlet hole (402), the outer wall of the gas guide ring two (406) is fixedly connected with the main air inlet pipe (407), the end surface of the main air inlet pipe (407) is fixedly connected to the main air bag (408), the outer wall of the main air inlet pipe (407) is fixedly connected with the fixing frame (6), the fixing frame (6) is located at the bottom of the main air bag (408) and is fixedly connected with the vertical rod one (5).

2. A pulse back flushing filter cartridge dust collector for smelting flue gas treatment according to claim 1, characterized in that: It also includes a vertical rod two (7), an inner scraping ring (8), a secondary air inlet pipe (409), a secondary air bag (410), a connecting frame (411) and an outer scraping ring (412), the inner scraping ring (8) is movably connected with the outer wall of the filter cartridge body (2), the outer scraping ring (412) is movably connected with the inner wall of the outer cylinder (1), the inner scraping ring (8) and the outer scraping ring (412) are connected as a whole through the connecting frame (411), the secondary air bag (410) is connected below the connecting frame (411), the secondary air inlet pipe (409) is connected with the secondary air bag (410), the secondary air inlet pipe (409) is fixedly connected to the side wall of the main air inlet pipe (407), the vertical rod two (7) is fixedly connected to the inside top surface of the outer cylinder (1), and the vertical rod two (7) is movably connected with the connecting frame (411).

3. A pulse back flushing filter cartridge dust collector for smelting flue gas treatment according to claim 1, characterized in that: The hose (404) is provided with 2-4.

4. The pulse back flushing filter cartridge dust collector for smelting flue gas treatment according to claim 1, characterized in that: The bottom of the outer cylinder (1) is provided with a through slot, and the bottom of the outer cylinder (1) is fixedly connected with the annular plate (3) through bolts, and the annular plate (3) blocks the through slot.

5. A pulse back flushing filter cartridge dust collector for smelting flue gas treatment according to claim 1, characterized in that: The pulse air outlet cylinder (401) is fixedly connected to the outer wall of the filter cartridge body (2), and the pulse air outlet cylinder (401) extends into the inside of the filter cartridge body (2).

6. A pulse back flushing filter cartridge dust collector for smelting flue gas treatment according to claim 2, characterized in that: The secondary air bag (410) is hollow, the secondary air bag (410) is sleeved with the vertical rod two (7), and the bottom of the secondary air bag (410) is fixedly connected with the vertical rod two (7).

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