Pleated filter cartridge dust remover for production of copper ore yu ore dressing plant

Abstract

The utility model relates to the technical field of environment-friendly dust removal, in particular to a pleated filter cartridge dust remover for production of a copper ore yu ore dressing plant. The device comprises a steel bracket, a ring beam is mounted on the steel bracket, a box body is mounted on the ring beam, a plurality of ash buckets are connected below the box body, and an ash discharging valve is arranged at the bottom of each ash bucket; a partition plate is vertically arranged in the box body and divides the interior of the box body into an air inlet cavity and a filtering cavity, a dust baffle is obliquely arranged in the air inlet cavity, an air inlet is formed in one side of the air inlet cavity, an air inlet pipe for conveying smoke gas is connected to the air inlet, an air flow uniform distribution plate is arranged at the bottom in the filtering cavity, and a pattern plate is arranged above the air flow uniform distribution plate. A plurality of groups of dust removal units are inserted into the pattern plate; the device is small in size and high in dust removal efficiency; the device adopts a sinking flow type layout, so that the dust cleaning effect is good; the wind shield is arranged at the dust-containing gas inlet, so that buffering and wear-resisting effects are achieved; the filter cartridge in the device is vertically mounted, so that the filter cartridge is more convenient to detach and replace, and the maintenance work is reduced to the minimum.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection dust removal, in particular to a pleated filter cartridge dust collector for production in a Tongkuangyu Mine dressing plant. Background Art

[0002] The Tongkuangyu Mine Concentrator has long used Venturi wet dust collectors for dust control. However, with the expansion of production scale and the improvement of environmental protection requirements, some problems that cannot be ignored have gradually been exposed.

[0003] First, the Venturi wet dust collector takes up a large space and has high requirements for the plant area. This not only increases the cost of plant construction, but also limits the flexibility of equipment layout and production lines. Secondly, the technology of the Venturi wet dust collector is relatively complex, and it is difficult to produce and install, resulting in high initial investment costs and a long installation cycle. In addition, the equipment needs regular maintenance during operation, and the maintenance cost is high, which increases the operating burden of the ore dressing plant.

[0004] In addition, the Venturi wet dust collector is prone to corrosion when dealing with acidic and alkaline gases, which not only shortens the service life of the equipment, but may also cause particulate matter to leak out, increase pressure loss, and affect the dust removal effect. Furthermore, the Venturi wet dust collector consumes a lot of water during operation, and the sewage and sludge generated need to be treated, which increases environmental pressure and treatment costs. If these sewage and sludge are not handled properly, they may cause secondary pollution to the environment, which violates the green environmental protection requirements of modern mineral processing plants. Utility Model Content

[0005] The purpose of the utility model is to provide a reasonably designed pleated filter cartridge dust collector for use in the Tongkuangyu Mine Concentrator in view of the defects and shortcomings of the prior art, which can solve the above-mentioned defects.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a steel support, a ring beam is installed on the steel support, a box body is installed on the ring beam, several ash hoppers are connected to the bottom of the box body, and an ash unloading valve is provided at the bottom of each ash hopper; a partition plate is vertically provided in the box body, the partition plate divides the box body into an air inlet chamber and a filter chamber, a dust shield plate is obliquely provided in the air inlet chamber, an air inlet is provided on one side of the air inlet chamber, an air inlet pipe for conveying smoke and dust gas is connected to the air inlet, an air flow uniform distribution plate is provided at the bottom of the filter chamber, a flower plate is provided above the air flow uniform distribution plate, several groups of dust removal units are inserted in the flower plate, the top of the dust removal unit is located on the flower plate, a pulse spraying system is provided on the top of the box body, and the pulse spraying system is located above the flower plate; an air outlet is opened on the side of the box body, a negative pressure dust removal pump structure is provided on one side of the steel support, and the air suction port of the negative pressure dust removal pump structure is connected to the air outlet through an exhaust pipe.

[0007] Preferably, the dust removal unit comprises a cylindrical pleated filter cartridge, and a plurality of dust removal units are evenly installed vertically in the flower plate in an equidistant array.

[0008] Preferably, the pulse jet system is provided with a plurality of jet heads, each of which is arranged vertically facing the outlet of a pleated filter cartridge of a dust removal unit, an air storage tank is arranged on one side of the steel bracket, a high-pressure air pump is arranged on the box body, the air suction pipe of the high-pressure air pump is connected to the exhaust pipe, the air outlet pipe of the high-pressure air pump is connected to the air storage tank, and the air storage tank is connected to the pulse jet system through a gas pipeline.

[0009] Preferably, a working platform with a fence and an inclined ladder are provided on the side of the box, and an electric control device is provided on the outside of the box.

[0010] After adopting the above structure, the beneficial effects of the utility model are:

[0011] The device is small in size and has low equipment resistance during use, which effectively saves energy consumption of the dust removal system and has high dust removal efficiency.

[0012] This device adopts sinking flow layout, which has good dust cleaning effect.

[0013] The device is equipped with a wind shield at the dust-laden gas inlet, which has a buffering and wear-resistant effect, preventing the dust from directly impacting the filter cartridge at high speed, thereby greatly extending the service life of the filter cartridge.

[0014] The filter cartridge in this device is installed vertically, which makes it easier to remove and replace the filter cartridge, and there are no transmission parts in the dust collector body, which reduces its maintenance work to a minimum. For general dust, the filter cartridge can be used for a long time without replacement, eliminating the tedious work of frequent replacement and cleaning of the filter cartridge in common filter cartridge dust collectors, and saving a lot of maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the utility model;

[0016] Figure 2 It is a side view of the utility model.

[0017] Description of reference numerals:

[0018] 1. Steel support; 2. Ash hopper; 3. Ring beam; 4. Box body; 5. Dust shield; 6. Pulse spray system; 7. Pleated filter cartridge; 8. Air flow distribution plate; 9. Flower plate; 10. Air outlet; 11. Air inlet; 12. Inclined ladder; 13. Air storage tank; 14. Partition plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 2 As shown, it comprises a steel support 1, on which a ring beam 3 is mounted, on which a box body 4 is mounted, and a plurality of ash hoppers 2 are connected to the lower part of the box body 4, and a dust discharge valve is provided at the bottom of each ash hopper 2; a partition plate 14 is vertically arranged in the box body 4, and the partition plate 14 divides the box body 4 into an air inlet chamber and a filter chamber, and a dust shield plate 5 is obliquely arranged in the air inlet chamber, and an air inlet port 11 is arranged on one side of the air inlet chamber, and an air inlet pipe for conveying smoke and dust gas is connected to the air inlet port 11, and an air flow uniform distribution plate 8 is arranged at the bottom of the filter chamber, and a flower plate 9 is arranged above the air flow uniform distribution plate 8, and a plurality of groups of dust removal units are inserted in the flower plate 9, and the top of the dust removal unit is located on the flower plate 9, and a pulse spraying system 6 is arranged at the top of the box body 4, and the pulse spraying system 6 is located above the flower plate 9; an air outlet 10 is opened on the side of the box body 4, and a negative pressure dust removal pump structure is arranged on one side of the steel support 1, and the air suction port of the negative pressure dust removal pump structure is connected to the air outlet 10 through an exhaust pipe;

[0021] The dust removal unit includes a cylindrical pleated filter cartridge 7, and a plurality of dust removal units are evenly installed vertically in a flower plate 9 in an equidistant array;

[0022] The pulse jet system 6 is provided with a plurality of jet heads, each of which is arranged vertically facing the outlet of a pleated filter cartridge 7 of a dust removal unit, a gas storage tank 13 is arranged on one side of the steel bracket 1, a high-pressure air pump is arranged on the box body 4, an air suction pipe of the high-pressure air pump is connected to the exhaust pipe, an air outlet pipe of the high-pressure air pump is connected to the gas storage tank 13, and the gas storage tank 13 is connected to the pulse jet system 6 through a gas pipeline;

[0023] A working platform with a fence and an inclined ladder 12 are provided on the side of the box body 4, and an electric control device is provided on the outside of the box body 4.

[0024] When in use, the dust-laden gas enters the box body 4 from the air inlet 11, flows downward under the guidance of the dust shield 5, and enters the dust collector hopper 2. Due to the sudden expansion of the air flow section and the action of the air flow distribution plate, a part of the coarse particles in the air flow settles in the hopper 2 under the action of dynamic and inertial forces; the dust particles with fine particle size and small density move upward with the air flow, and the air flow is evenly divided when passing through the air flow distribution plate 8. After entering the filter cavity, the dust is deposited on the surface of the pleated filter cartridge 7 through the combined effects of Brownian diffusion and screening, and the purified gas enters the top of the flower plate 9 and is then discharged by the exhaust pipe and the negative pressure dust removal pump structure. At the same time, the high-pressure air pump extracts part of the filtered gas and stores it in the gas storage tank 13;

[0025] With use, the dust thickness on the surface of the pleated filter cartridge 7 increases, and the resistance of the filter cartridge dust collector increases with the increase of the dust layer thickness on the filter material surface, and it needs to be cleaned;

[0026] The resistance of the cartridge dust collector increases with the increase of the thickness of the dust layer on the filter material surface. The dust collector cartridge can be cleaned by offline high-pressure pulse automatic cleaning or online continuous cleaning controlled by a pulse controller. Offline high-pressure pulse cleaning is controlled by the PLC program or the pulse controller to control the opening and closing of the pulse valve. Offline high-pressure pulse cleaning requires the installation of several partitions below the flower plate 9 in the box body 4 to divide the lower space of the box body 4 into multiple chambers. Each chamber is connected to the ash hopper 2 below, and a lifting valve is installed between each chamber and the ash hopper 2 and the adjacent chamber. When cleaning, first close the lifting valve of the first chamber to cut off the filtered airflow. The electromagnetic pulse valve then opens the jet head at the top of the first chamber. The compressed air in the air storage tank 13 is sent in and expands rapidly in the upper part of the box body 4, rushing into the pleated filter cartridge 7, causing the pleated filter cartridge 7 to expand and deform to produce vibration. Under the action of the reverse airflow, the dust attached to the surface of the pleated filter cartridge 7 is peeled off and falls into the ash hopper 2, and then the lifting valve is opened to resume the filtering work of the chamber; then the multiple chambers are cleaned in turn; online cleaning means that the dust collector is not divided into chambers and is not equipped with a lifting valve. The airflow is not cut off during cleaning, and the high-pressure gas is directly reversely cleaned under the control of the pulse valve, which is suitable for occasions with low dust concentration;

[0027] After the dust cleaning is completed, the electromagnetic pulse valve is closed, the air inlet valve is opened, and the filtering state is restored; the fallen dust falls into the ash hopper 2 and is discharged through the ash discharge valve;

[0028] During use, the filter cartridge needs to be replaced and cleaned regularly to ensure the filtering effect and accuracy. Because during the filtering process, in addition to being blocked, some dust will be deposited on the surface of the pleated filter cartridge 7, increasing the resistance, so the correct cleaning time is generally three to five months.

[0029] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or within the equivalent forms of such scope and boundaries.

Claims

1. A pleated filter cartridge dust collector for use in a Tongkuangyu Mine Dressing Plant, comprising a steel support (1), a ring beam (3) mounted on the steel support (1), a box body (4) mounted on the ring beam (3), and characterized in that: A plurality of ash hoppers (2) are connected to the bottom of the box body (4), and a ash discharge valve is provided at the bottom of each ash hopper (2); a partition plate (14) is vertically provided in the box body (4), and the partition plate (14) divides the box body (4) into an air inlet chamber and a filter chamber; a dust shield plate (5) is obliquely provided in the air inlet chamber; an air inlet (11) is provided on one side of the air inlet chamber; an air inlet pipe for conveying smoke and dust gas is connected to the air inlet (11); an air flow distribution plate (8) is provided at the bottom of the filter chamber; a flower plate (9) is provided above the air flow distribution plate (8); a plurality of dust removal units are inserted in the flower plate (9), and the top of the dust removal unit is located on the flower plate (9); a pulse spray system (6) is provided at the top of the box body (4), and the pulse spray system (6) is located above the flower plate (9); an air outlet (10) is opened on the side of the box body (4); a negative pressure dust removal pump structure is provided on one side of the steel bracket (1); and an air suction port of the negative pressure dust removal pump structure is connected to the air outlet (10) through an exhaust pipe.

2. A pleated filter cartridge dust collector for use in the Tongkuangyu Mine Concentrator according to claim 1, characterized in that: The dust removal unit comprises a cylindrical pleated filter cartridge (7), and a plurality of dust removal units are evenly installed vertically in an equidistant array in a flower plate (9).

3. A pleated filter cartridge dust collector for use in the Tongkuangyu Mine Concentrator according to claim 2, characterized in that: The pulse jet system (6) is provided with a plurality of jet heads, each of which is arranged vertically opposite to the outlet of a pleated filter cartridge (7) of a dust removal unit. An air storage tank (13) is arranged on one side of the steel support (1). A high-pressure air pump is arranged on the box body (4). The air suction pipe of the high-pressure air pump is connected to the exhaust pipe, and the air outlet pipe of the high-pressure air pump is connected to the air storage tank (13). The air storage tank (13) is connected to the pulse jet system (6) through a gas pipeline.

4. A pleated filter cartridge dust collector for use in the Tongkuangyu Mine Concentrator according to claim 3, characterized in that: A working platform with a fence and an inclined ladder (12) are provided on the side of the box body (4), and an electric control device is provided on the outside of the box body (4).

Images