Treatment device for airflow containing composite dust particles

Abstract

The utility model discloses a device for treating airflow containing composite dust particles, which comprises a filtering device arranged in a negative pressure dust collection chamber, the upper end of the negative pressure dust collection chamber is communicated with a negative pressure dust collection pipeline, the filtering device comprises a first filtering device which is obliquely arranged, a material guide channel is arranged below the first filtering device, and the material guide channel is communicated with the negative pressure dust collection pipeline. A vertically arranged second filtering device is mounted above the first filtering device, the second filtering device comprises a relatively fixed mounting cover and a relatively rotating filtering cover, a filtering opening is formed in one side of the mounting cover, and the filtering cover is positioned in the mounting cover and directionally rotates; an exhaust opening is formed in the top of the mounting cover and communicated with the negative pressure dust collection pipeline, and the filtering size of the first filtering device is larger than that of the filtering cover. According to the utility model, dust particles are prevented from being concentrated at one position to cause concentrated blockage, the disassembly and replacement frequency of the surface of the second filtering device is reduced, and the negative pressure dust removal efficiency and effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow treatment, in particular to a treatment device for air flow containing composite dust particles. Background Art

[0002] In order to reduce the treatment load at the end of a negative pressure dust removal device, a filtering device is usually arranged in the negative pressure channel of the negative pressure dust removal device to filter and settle most dust particles, so as to improve the effect of negative pressure dust removal.

[0003] Traditional filtering devices usually include mechanical filtering and dust removal at the front end and electrostatic adsorption and dust removal at the rear end. For the front-end mechanical filtering and dust removal, the filtered dust particles are usually large-sized. The traditional single mesh filter core structure allows dust particles of different sizes to accumulate in the same area, affecting the effect of negative pressure dust removal, causing local blockage, and requiring frequent manual cleaning of the mesh filter core structure, reducing the efficiency of negative pressure dust removal. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and a treatment device for air flow containing composite dust particles is proposed, which avoids the centralized blockage caused by the concentration of dust particles in one place, reduces the disassembly and replacement frequency of the surface of the second filtering device, and improves the efficiency and effect of negative pressure dust removal.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A treatment device for air flow containing composite dust particles includes a filtering device installed in a negative pressure dust suction chamber. The upper end of the negative pressure dust suction chamber is communicated with a negative pressure dust suction pipe. The filtering device includes a first filtering device arranged obliquely. A material guiding channel is installed below the side of the first filtering device. A second filtering device arranged vertically is installed above the first filtering device. The second filtering device includes a relatively fixed installation cover and a relatively rotatable filtering cover. A filtering opening is formed on one side of the installation cover. The filtering cover rotates directionally within the installation cover. An exhaust opening is formed at the top of the installation cover and is communicated with the negative pressure dust suction pipe. The filtering size of the first filtering device is larger than that of the filtering cover. The air flow containing composite dust particles is controlled to pass through the first filtering device and the filtering cover in sequence to achieve filtering and purification.

[0007] Preferably, the first filtering device includes a filtering plate and a vibration assembly, and the vibration assembly moves directionally along the filtering plate to achieve vibration cleaning.

[0008] Preferably, the lower surface of the first filtering device faces the material guiding channel, and the filtering opening faces away from the material guiding channel.

[0009] Preferably, the installation cover includes an inner cover body and an outer cover body arranged at intervals. A cleaning chamber and a drying chamber are formed between the inner cover body and the outer cover body, and the filter cover rotates continuously in the cleaning chamber and the drying chamber.

[0010] Preferably, a high-pressure spray cleaning device is arranged in the cleaning chamber, and the high-pressure spray cleaning device is located inside the filter cover.

[0011] Preferably, a high-pressure air jet drying device is arranged in the drying chamber, and the high-pressure air jet drying device is located inside the filter cover.

[0012] Preferably, the filter cover is composed of multiple arc-shaped filter sheets, and the cross-sectional dimension of the filter sheet is smaller than the cross-sectional dimension of the filter opening.

[0013] Preferably, a power ring is rotatably connected to the upper end of the installation cover in a sealed manner. The upper end of the power ring is connected to a power device, and the lower end is fixed to the top of the filter cover.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Through the above structural design, dust particles of different sizes can be sedimented separately. Larger-sized particles fall to the bottom of the negative-pressure dust suction chamber under the action of gravity, and smaller-sized dust is cleaned by the second filtering device during continuous rotation for directional collection. The dust particles of different sizes are filtered and sedimented separately, avoiding the centralized blockage caused by the concentration of dust particles in one place, reducing the disassembly and replacement frequency on the surface of the second filtering device, and improving the efficiency and effect of negative-pressure dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the refractory brick cutting equipment to which the present utility model is applied.

[0017] Figure 2 For the present utility model Figure 1 is a front view structural schematic diagram.

[0018] Figure 3 For the present utility model Figure 2 is a sectional structural schematic diagram taken along the A-A direction.

[0019] Figure 4 For the present utility model Figure 3 is an enlarged structural schematic diagram at position B.

[0020] Figure 5 is a three-dimensional structural schematic diagram of the second filtering device of the present utility model.

[0021] Figure 6 For the present utility model Figure 5 is a front view structural schematic diagram.

[0022] Figure 7 For the present utility model Figure 6 is a schematic cross-sectional structure view in the C-C direction.

[0023] In the figure: 100, dust cover; 110, material guiding channel; 200, cutting device; 300, refractory brick; 400, clamping device; 500, negative pressure dust suction device; 510, negative pressure dust suction chamber; 600, negative pressure dust suction pipe; 700, second filtering device; 710, mounting cover; 7101, cleaning chamber; 7102, drying chamber; 711, filtering opening; 712, exhaust opening; 713, first partition board; 714, external cover body; 715, internal cover body; 716, second partition board; 720, filtering cover; 721, filtering sheet; 722, power ring; 800, first filtering device; 810, filtering plate; 820, vibration assembly; 821, guiding track; 822, vibration rod; 823, electric slider. Specific embodiments

[0024] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0026] The refractory brick is a composite high-temperature resistant material composed of metal materials and other media, with high thermal stability and capable of withstanding temperatures of thousands of degrees.

[0027] The refractory brick can be used for the construction of smelting furnaces. To meet the construction requirements of smelting furnaces, the refractory brick needs to be cut and corrected; the cutting of the refractory brick is carried out by a dedicated cutting device, and a large amount of dust is generated during the cutting process of the refractory brick. Usually, a negative pressure dust removal device is equipped, and the dust generated during the cutting process can be directionally collected through the negative pressure dust removal device to improve the environment for cutting the refractory brick.

[0028] In order to reduce the processing load at the end of the negative pressure dust removal equipment, a filtering device is usually set in the negative pressure channel of the negative pressure dust removal equipment to filter and settle most of the dust particles to improve the effect of negative pressure dust removal. The traditional filtering device usually includes mechanical filtering and dust removal at the front end and electrostatic adsorption and dust removal at the back end. For the mechanical filtering and dust removal at the front end, the dust particles filtered are usually large-sized. The traditional single mesh filter core structure allows dust of different particle sizes to accumulate in the same area, affecting the effect of negative pressure dust removal, causing local blockage, and requiring frequent manual cleaning of the mesh filter core structure, reducing the efficiency of negative pressure dust removal.

[0029] To solve the above problems, the utility model proposes a processing device containing a composite dust particle air flow. Referring to the attached Figure 1 - attached Figure 7 , it can be applied to a refractory brick cutting equipment with good dust removal effect. The refractory brick cutting equipment includes a dust-proof cover 100, a cutting device 200 and a clamping device 400 for clamping the refractory brick 300 are arranged in the dust-proof cover 100. A dust-proof chamber is formed inside the dust-proof cover 100. The clamping device 400 drives the refractory brick 300 to move horizontally at the bottom of the dust-proof chamber, and the cutting device 200 moves vertically along the dust-proof chamber. When the cutting device 200 is moved to the bottom position, during the horizontal movement of the refractory brick 300, the surface cutting and correction of the refractory brick 300 can be completed to meet the requirements of smelting furnace construction. A large amount of dust is generated during the cutting of the refractory brick 300. A negative pressure dust suction device 500 is arranged behind the dust-proof cover 100. Through the negative pressure dust suction device 500, the dust generated by cutting can be continuously absorbed to avoid dust overflow and improve the cutting environment.

[0030] Specifically, a negative pressure dust collection chamber 510 is formed inside the negative pressure dust collection device 500. A negative pressure dust collection pipe 600 is connected to the top of the negative pressure dust collection chamber 510, and a material guiding channel 110 extending towards the clamping device 400 is connected to the side wall of the negative pressure dust collection chamber 510. During the continuous negative pressure suction of the negative pressure dust collection pipe 600, the dust generated by the cutting of the cutting device 200 is diverted through the material guiding channel 110 into the negative pressure dust collection chamber 510 for filtration and sedimentation. An inclined first filtering device 800 is arranged on the inner wall of the negative pressure dust collection chamber 510, and a vertically arranged second filtering device 700 is arranged at the upper end of the first filtering device 800. The filtering size of the first filtering device 800 is larger than that of the second filtering device 700. Larger-sized dust particles are filtered and sedimented at the first filtering device 800, and smaller-sized dust particles are filtered and sedimented at the second filtering device 700. Dust particles of different sizes are filtered and sedimented at different positions, which is different from the traditional single mesh filter core structure, avoiding the concentrated accumulation of dust in one place, greatly improving the effect of negative pressure dust removal. Moreover, the second filtering device 700 rotates continuously in a fixed direction to achieve self-cleaning. The top of the second filtering device 700 is connected to the negative pressure dust collection pipe 600 and rotates around the vertically arranged axis. During the rotation, the surface of the second filtering device 700 can be continuously cleaned, avoiding the blockage of the surface of the second filtering device 700, reducing the frequency of surface cleaning of the second filtering device 700, and greatly improving the efficiency of negative pressure dust removal.

[0031] Through the above structural design, dust particles of different sizes can be sedimented separately. Larger-sized particles fall to the bottom of the negative pressure dust collection chamber 510 under the action of gravity, and smaller-sized dust is directionally collected through the continuous rotation and cleaning of the second filtering device 700. The dust particles of different sizes are filtered and sedimented separately, avoiding the concentrated blockage caused by the concentration of dust particles in one place, reducing the disassembly and replacement frequency of the surface of the second filtering device 700, and improving the efficiency and effect of negative pressure dust removal.

[0032] Specifically, the second filtering device 700 includes a relatively fixed mounting cover 710 and a filtering cover 720 that rotates relative to the inside of the mounting cover 710. A filtering opening 711 is formed on the first side of the mounting cover 710, and an exhaust opening 712 is formed at the top of the mounting cover 710 and communicated with the negative-pressure dust suction pipeline 600. The mounting cover 710 is connected to the top of the negative-pressure dust suction chamber 510 and is in a relatively fixed state. During the continuous negative-pressure suction process of the negative-pressure dust suction pipeline 600, the gas containing dust passes through the filtering cover 720, and most of the dust is filtered outside the filtering cover 720, deeply purifying the gas. And during the continuous rotation of the filtering cover 720, different surfaces of the filtering cover 720 face the filtering opening 711. After being cleaned, the filtering cover 720 rotates to the outside to filter and settle the dust. During the continuous rotation of the filtering cover 720, its effect of filtering and settling the dust is good, greatly reducing the frequency of replacing the filtering cover 720 by the staff and improving the overall cutting and processing efficiency.

[0033] Furthermore, the lower surface of the first filtering device 800 faces the material guiding channel 110, the filtering opening 711 faces away from the material guiding channel 110, and the first filtering device 800 is inclined. Larger particles can settle to the bottom under the action of gravity. Here, the filtering opening 711 faces the outside. Through the above design, a longer gas filtering and settling path can be formed, and more dust settles in the negative-pressure dust suction chamber 510 under the action of gravity, reducing the filtering load on the surfaces of the first filtering device 800 and the filtering cover 720 and improving the overall filtering and settling efficiency.

[0034] Specifically refer to the appendix Figure 7 , specifically, the mounting cover 710 includes an inner cover body 715 and an outer cover body 714 arranged at intervals. A cleaning chamber 7101 and a drying chamber 7102 are formed between the inner cover body 715 and the outer cover body 714. The filtering cover 720 is continuously rotated in the cleaning chamber 7101 and the drying chamber 7102. During the rotation process, the filtering cover 720 sequentially passes through the cleaning chamber 7101 and the drying chamber 7102. High-pressure spray cleaning is performed in the cleaning chamber 7101 to achieve deep cleaning of the surface of the filtering cover 720 and ensure the subsequent filtering and settling effect. The filtering cover 720 is dried by high-pressure air jet in the drying chamber 7102, which can further clean the substances remaining on the surface of the filtering cover 720. At the same time, it can dry the surface of the filtering cover 720, discharge some solid-liquid mixed substances, and further improve the subsequent filtering and settling effect of the filtering cover 720.

[0035] It should be noted here that high-pressure equipment for cleaning and drying is installed on the inner wall of the inner housing 715, which can spray high-pressure cleaning liquid or high-pressure drying gas from the inside. The airflow from the inside to the outside can efficiently wash the surface of the filter cover 720. At the same time, the atomized liquid in the cleaning process can effectively settle the dust, greatly shortening the dust treatment time; at the same time, the settled dust is located in a relatively isolated chamber and will not affect the outside environment.

[0036] First partition plates 713 are fixed at both ends of the inner housing 715 and the outer housing 714. A second partition plate 716 is arranged between the cleaning chamber 7101 and the drying chamber 7102. Through the first partition plates 713, the cleaning chamber 7101 and the drying chamber 7102 can be separated from the external environment, so that the airflow generated by negative pressure can enter the second filtering device 700 unidirectionally from the filtering opening 711, pass through the filter cover 720 at a specific position, and finally discharge from the exhaust opening 712; at the same time, the second partition plate 716 can separate the cleaning chamber 7101 and the drying chamber 7102, preventing the high-pressure cleaning liquid from mixing with the high-pressure drying gas, ensuring the independent operation of the two successively, greatly improving the cleaning and drying effects, and at the same time avoiding the mixing of dust in different chambers, enabling the settled dust to be concentrated and settled in the cleaning chamber 7101 for treatment, simplifying the subsequent cleaning steps and improving the subsequent cleaning effect.

[0037] A power ring 722 is hermetically and rotatably connected to the upper end of the installation cover 710. The upper end of the power ring 722 is connected to a power device, and the lower end is fixed to the top of the filter cover 720. The power device can choose to transmit power through a gear structure. Through the above structural design, the power can be transmitted to the inside of the installation cover 710 to control the continuous directional rotation of the filter cover 720. The hermetically rotatable design of the power ring 722 ensures the sealing inside the installation cover 710, ensures the unidirectional flow of the negative pressure airflow, and ensures efficient filtration and settlement; at the same time, the annular design of the power ring 722 can reserve space for the exhaust opening 712, and the negative pressure airflow can flow out from the top position through the negative pressure dust suction pipe 600 for electrostatic settlement or centrifugal settlement in subsequent equipment.

[0038] Furthermore, the filter cover 720 is composed of multiple arc-shaped filter sheets 721. The cross-sectional size of the filter sheet 721 is smaller than the cross-sectional size of the filter opening 711. After multiple filter sheets 721 are installed, they are located on the surface of the same virtual circle. The filter cover 720 is formed by splicing multiple filter sheets 721, which is convenient for the installation and disassembly of the filter sheets 721. At the same time, the cross-sectional size of the filter sheet 721 is smaller than the cross-sectional size of the filter opening 711, so that the filter sheets 721 can be quickly replaced without opening the installation cover 710, further facilitating the disassembly of the filter sheets 721, reducing the work difficulty of the staff, and shortening the standby maintenance time of the cutting equipment.

[0039] Specifically, the first filtering device 800 includes an inclined filter plate 810 and a vibration assembly 820 located at the upper end of the filter plate 810. The vibration assembly 820 can continuously vibrate the surface of the filter plate 810, vibrating the dust particles at the bottom of the filter plate 810 to the bottom position, and finally discharging them centrally. The vibration assembly 820 moves directionally along the inclined filter plate 810 to achieve vibration cleaning. The vibration assembly 820 moves along the entire surface of the filter plate 810, enabling more dust particles on the surface of the filter plate 810 to fall to the bottom position of the negative pressure dust collection chamber 510 for centralized discharge.

[0040] Preferably, the vibration assembly 820 includes a guiding track 821 and an electric slider 823 that moves directionally along the guiding track 821. A vibration rod 822 that abuts against the upper surface of the filter plate 810 is fixedly connected to the side wall of the electric slider 823. The vibration rod 822 is electrically controlled. During the negative pressure filtration process, when the dust particles accumulated on the surface of the filter plate 810 reach a threshold value and affect the negative pressure air flow, the vibration rod 822 is controlled to vibrate continuously, and at the same time, the electric slider 823 is controlled to move directionally electrically, enabling the dust particles at various positions on the surface of the filter plate 810 to settle by vibration; to prevent excessive accumulation of dust particles on the surface of the filter plate 810 and ensure the normal filtration effect of the filter plate 810. At the same time, the above process is automatic and does not require workers to perform disassembly processing, further reducing the disassembly and replacement cycle of workers and improving the efficiency of cutting and dust reduction.

[0041] The present invention will be further described below in combination with the dust removal process.

[0042] During the process of moving the refractory brick 300 to be cut below the cutting device 200, the negative pressure suction pipe 600 continuously generates negative pressure gas to suck the dust particles generated by cutting the refractory brick 300 into the negative pressure dust collection chamber 510 through the material guiding channel 110. Inside the negative pressure dust collection chamber 510, the dust particles pass through the first filtering device 800 and the second filtering device 700 in sequence for filtration. The filtration size of the first filtering device 800 is larger than that of the second filtering device 700. Larger-sized dust particles settle to the bottom position of the negative pressure dust collection chamber 510 under the action of gravity at the first filtering device 800, and smaller-sized dust particles are filtered and settled on the surface of the second filtering device 700.

[0043] At the same time, the vibration assembly 820 can vibrate the dust particles on the surface of the filter plate 810, reducing the frequency of cleaning and replacement at the filter plate 810. During the continuous rotation of the filter hood 720, self-cleaning of the surface can be achieved, ensuring the dust treatment effect at this location and also reducing the frequency of cleaning and replacement of the filter hood 720.

[0044] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A device for processing an airflow containing composite dust particles, comprising a filtering device installed in a negative pressure dust suction chamber (510), wherein the upper end of the negative pressure dust suction chamber (510) is connected to a negative pressure dust suction pipe (600), characterized in that: The filtering device comprises a first filtering device (800) arranged obliquely, a material guide channel (110) being installed at the lower side of the first filtering device (800), a second filtering device (700) being installed at the upper side of the first filtering device (800), the second filtering device (700) comprising a relatively fixed mounting cover (710) and a relatively rotatable filtering cover (720), a filtering opening (711) being opened at one side of the mounting cover (710), the filtering cover (720) being located in the mounting cover (710) and rotating in a directional manner, an exhaust opening (712) being opened at the top of the mounting cover (710) and being communicated with a negative pressure dust suction pipe (600), the filtering size of the first filtering device (800) being larger than the filtering size of the filtering cover (720), and controlling an airflow containing composite dust particles to sequentially pass through the first filtering device (800) and the filtering cover (720) to achieve filtering and purification.

2. The device for processing a gas flow containing composite dust particles according to claim 1, characterized in that: The first filtering device (800) comprises a filtering plate (810) and a vibration component (820), wherein the vibration component (820) moves in a directional manner along the filtering plate (810) to achieve vibration cleaning.

3. The device for processing a gas flow containing composite dust particles according to claim 1, characterized in that: The lower surface of the first filter device (800) is opposite to the material guiding channel (110), and the filter opening (711) faces a side away from the material guiding channel (110).

4. The device for processing a gas flow containing composite dust particles according to claim 1, characterized in that: The installation cover (710) comprises an inner cover body (715) and an outer cover body (714) arranged at intervals, a cleaning chamber (7101) and a drying chamber (7102) are formed between the inner cover body (715) and the outer cover body (714), and the filter cover (720) is located in the cleaning chamber (7101) and the drying chamber (7102) and rotates continuously.

5. The device for processing a gas flow containing composite dust particles according to claim 4, characterized in that: A high-pressure spray cleaning device is provided in the cleaning chamber (7101), and the high-pressure spray cleaning device is located inside the filter cover (720).

6. The device for processing a gas flow containing composite dust particles according to claim 4, characterized in that: A high-pressure jet drying device is provided in the drying chamber (7102), and the high-pressure jet drying device is located inside the filter cover (720).

7. The device for processing a gas flow containing composite dust particles according to claim 1, characterized in that: The filter cover (720) is composed of a plurality of arc-shaped filter sheets (721), and the cross-sectional dimensions of the filter sheets (721) are smaller than the cross-sectional dimensions of the filter opening (711).

8. The device for processing a gas flow containing composite dust particles according to claim 1, characterized in that: The upper end of the installation cover (710) is sealed and rotatably connected to a power ring (722); the upper end of the power ring (722) is connected to a power device, and the lower end is fixed to the top of the filter cover (720).

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